Quick comparison
The most useful comparison places the products on a continuum. Glassbox emphasizes a broad enterprise operating layer; Fullstory emphasizes a legible day-to-day product, UX, engineering, and support investigation loop.
Glassbox emphasis
Operational journey intelligence
Web and mobile journeys, technical and server evidence, Voice of Customer workflows, digital records, services, and deployment choice.
Fullstory emphasis
Product-experience investigation
Autocaptured behavioral analysis, segments, funnels, journeys, replay, Dev Tools, and product-team collaboration.
Meaningful overlap
Shared investigation evidence
Replay, journeys, funnels, heatmaps, segmentation, mobile analysis, and support investigation are not exclusive to either vendor.
Glassbox packages Production Operation, Marketing/Business, and Product use cases. Fullstory combines Analytics tiers with add-ons. Either can serve designers or enterprises; emphasis is not a hard boundary.
Operational journey intelligence, or product investigation
Glassbox
Enterprise operational journey intelligence
Overlapping middle
Fullstory
Product and UX investigation
Operations and compliance ask first Product and UX ask first
Both sit either side of a wide shared middle. The deciding question is which department opens the tool every morning, because that shapes the default view and the rollout.
For a wider market view, use the product analytics tools comparison.
Replay, journeys, and behavioral investigation
Both products move from an aggregate signal to selected sessions. Fullstory usually presents the more focused product investigation workflow; Glassbox places that workflow inside a broader enterprise journey and operating context.
Glassbox joins replay with configured technical/server events and journey context before session drill-down. Fullstory commonly narrows from an autocaptured event, segment, metric, funnel, journey, or heatmap into replay and Dev Tools.
| Investigation capability | Glassbox | Fullstory |
|---|---|---|
| Journey visualization | Web/mobile paths, conversion, struggle, errors, segments, and replay drill-down. | Common paths with segments, funnels, and replay; Advanced/Enterprise. |
| Funnel to replay | Behavioral/technical events, segments, and relevant sessions. | Conversion steps, friction, performance, and sessions; advanced analysis varies. |
| Session search | User, browser, struggle, technical context, and GIA search; entitlement unspecified. | Users, events, pages, properties, segments, and behavioral criteria. |
| Successful versus failed segments | Dimensions, journeys, VoC, and configured/entitled audience or experiment data. | Event- and property-based outcome segments. |
| User properties | Identified users and custom dimensions. | Custom properties for identity, filtering, and analysis. |
| Company metadata | Identity/dimensions, not a Companies workspace. | Segmentable properties, not native account adoption. |
| Heatmaps | Web/mobile maps with segment and version comparisons. | Web click/scroll; mobile click/conversion, not scroll. |
| Form analysis | Validation/error reporting with funnels, maps, replay. | Recognized web change/abandonment; configurable privacy is paid. |
| Behavioral signals | Struggle, repeated interaction, slowness, errors, anomalies. | Friction signals; Conversion Analysis and alerts are Advanced/Enterprise. |
| Collaboration | Sharing, integrations, services, and selected Session Vault records. | Spaces, notes, links, alerts, integrations, and role controls. |
| Research workflow | Connect journeys, technical impact, mobile, and operations. | Move from aggregate analysis directly into selected sessions. |
| Support workflow | VoC/VoS, operations, services, and digital records. | Ticket-to-replay and ticket-to-DevTools integrations. |
No current independent head-to-head video met the evidence threshold. Both videos remained available at verification and show vendor positioning, not comparative performance.
Forms, technical evidence, and operational workflows
Glassbox is more explicit about combining experience analysis with enterprise operational and technical evidence. Fullstory offers substantial debugging context, but its clearest path runs from behavior to replay and developer investigation.
Neither product is only a replay player. Glassbox documents real-user performance, server-side events, errors, mobile crashes, anomalies, and service integrations. Fullstory documents console and network context, JavaScript errors, page-performance signals, device and browser properties, mobile diagnostics, and support integrations.
| Evidence group | Glassbox | Fullstory |
|---|---|---|
| Errors and crashes | Server events, console/display/form errors, and mobile crashes. | JavaScript, console, network, and configured mobile errors beside replay. |
| Performance and network context | RUM, latency, technical events, monitoring, and impact. | Request timing, waterfalls, console, and allowlisted details; not browser DevTools or APM. |
| Device, browser, and app context | Browser, OS, device, version, network, and mobile dimensions. | Browser, device, platform, page, app, user, and event properties. |
| Anomaly and friction detection | Anomaly alerts, custom triggers, Struggle Score, and error signals. | Friction, alerts, analyses, and likely StoryAI factors—not proof of cause. |
| AI-assisted summaries | GIA search and summaries; entitlement/price unpublished. | Summaries: Advanced/Enterprise; Ask/Opportunities: Premium; newer agents: Early Access. |
| Mobile diagnostics | Crash, latency, device, OS, network, version, and cross-channel behavior. | Configured crash/error/network context; SDK and framework parity vary. |
| Support and engineering systems | APM, collaboration, analytics, experiments, VoC; Call Center is separate. | Major support, engineering, and collaboration integrations. |
Glassbox publishes form-validation and related error dashboards. Fullstory recognizes web HTML form abandonment, but some server-side failures evade classification. Neither established a classic field-by-field form suite.
Four stages, and one hard guardrail
1
Journey or aggregate signal
Something measurable moved across a population
2
Selected replay
Specific sessions chosen because of the signal, not at random
3
Technical or support evidence
Errors, timing, tickets — what the recording could not show
4
Validation
Prevalence and outcome, measured against the original signal
Guardrail
Both products are strong at stages 2 and 3. Stage 4 is where investigations are won or abandoned, and it depends on structured measurement rather than more recordings.
Example: enterprise B2B onboarding and Reporting
A fictional B2B product has web and mobile clients. Administrators abandon onboarding, some later fail to generate a report, and affected users report slow performance. The team must identify individual evidence and the number of affected accounts.
| Investigation task | Glassbox | Fullstory | Additional evidence needed |
|---|---|---|---|
| Find the broken journey | Isolate journey drop-off, struggle, errors. | Segment failure in a funnel or Journey Map. | Success definition, identity, releases, instrumentation. |
| Inspect replay | Open visible, technical, and configured server context. | Open funnel/segment sessions with Dev Tools. | Masking, coverage, relevant state. |
| Analyze form abandonment | Combine validation, funnels, maps, errors, replay. | Use recognized form events, segments, funnels, replay. | Field rules, backend outcomes, qualitative research. |
| Inspect the technical issue | Use RUM, latency, errors, network, server events. | Use console, network, performance, mobile context, external logs. | Jobs, traces, APIs, infrastructure, reproduction. |
| Compare mobile and web | Analyze both; Mobile is package-listed. | Normalize behavior with Mobile add-on and SDK coverage. | Equivalent definitions, versions, devices, success. |
| Connect support context | Use CX-Listen/VoS, Call Center, or Vault where purchased. | Connect tickets through support integrations. | Taxonomy, consent, access, timestamps, identity. |
| Identify affected companies | Supply company dimensions and segment sessions. | Supply account properties and segment/count. | User-company mapping and membership rules. |
| Estimate prevalence | Quantify journeys/errors; accounts require validated company IDs. | Use funnels, metrics, segments, distinct IDs. | Backend totals, quality, denominators, controls. |
The products can investigate the same incident. Glassbox supplies a broader operational envelope; Fullstory supplies a direct product-analysis and replay loop. Neither removes the need for backend evidence, stable account identity, qualitative research, or validation after a fix.
Mobile, privacy, and enterprise governance
Both vendors have credible enterprise and mobile capabilities. Glassbox has the stronger public emphasis on cross-channel web and mobile operations, deployment choice, digital records, and connected diagnostics. Fullstory has detailed privacy and access features, but Mobile is separately packaged and some controls are plan-dependent.
Glassbox documents iOS, Android, React Native, Flutter, Xamarin, Cordova, Ionic, Capacitor, and Jetpack Compose. Fullstory's paid Mobile add-on supports native iOS and Android and React Native replay; it also lists Flutter, Cordova, and Capacitor, but Flutter replay remains Early Access and Flutter heatmaps are not currently supported.
| Governance area | Glassbox | Fullstory |
|---|---|---|
| Masking | Default masking plus configurable omission; test web/mobile behavior. | Optional Private by Default with configurable masking/exclusion. |
| Blocking and exclusion | Omission/privacy controls; verify selector, field, component, SDK behavior. | Element, code-first, and mobile capture rules. |
| URL controls | Public detail insufficient; verify route requirements. | URL, form, query, IP, and element rules; nonretroactive. |
| Retention | Replay/analysis months: Production 1/1; Marketing 3/13; Product 3/6. Confirm conflicting Product claim. | Paid: contractual. Free: one year each. |
| Deletion | Confirm user, session, range, and data-subject workflows. | Individual, user, segment, and date-range deletion documented. |
| SSO | SAML 2.0 and MFA documented; entitlement unspecified. | Enterprise SAML/roles; Enterprise SCIM currently documents Okta. |
| Role-based access | Granular permissions; confirm contract. | Plan-varying roles; Public Spaces are account-wide. |
| Audit logs | Complete audit log claimed; Vault has evidence auditability. | Capture/privacy-setting history, not confirmed universal object history. |
| Data residency and deployment | Single-/multi-tenant cloud and on-prem; “Hybrid Services” separately listed. Confirm region/subprocessors. | US default; EU by request; separate regions with no migration. |
| Implementation ownership | Cross-functional digital, engineering, privacy, operations, administration. | Focused start; privacy, identity, mobile, metadata, controls still need owners. |
| Professional services | Onboarding, training, consultants, CSM, configuration, 24x7 help. | Onboarding and Advantage services; contractual inclusion. |
| Enterprise support | Prominent publicly; confirm inclusion, targets, scope. | Depends on plan, add-ons, contract. |
Pricing and customer feedback
FullstoryFree provides the clearer entry. Paid deployments are quote-based in both products, so compare equivalent traffic, retention, mobile, services, and access.
Glassbox lists 2M/3M/3M monthly sessions included and Session Replay at 100%/10%/10%. Do not conflate that row with its separate interaction-capture claim.
| Pricing or feedback item | Glassbox | Fullstory |
|---|---|---|
| Free plan or trial | No permanent public free plan; demos/tours available. | Permanent $0 plan; business email, no card. |
| Public or custom pricing | Custom quote; no public dollars. | $0 Free; paid tiers are quoted. |
| Traffic or session model | Package, retention, web/app volume; 2M or 3M monthly sessions included. | Without overages/plan change, capture pauses until quota reset. |
| Mobile packaging | Marked included in all public packages. | Paid add-on; absent from Free. |
| Retention | Replay/analysis months: 1/1, 3/13, 3/6; confirm contract. | Free: one year each; paid: contractual. |
| Implementation services | Training, analysis, assistance, customer success. | Onboarding, data/insight services, Advantage; contractual. |
| Rating and review count | G2: 4.9/5 from 809 Glassbox product reviews. | G2: 4.5/5 from 1,052 Fullstory reviews. |
| Cost inputs and quote variables | Published: package, retention, volume. Confirm replay, add-ons, deployment, services. | Confirm quotas, retention, Mobile, StoryAI, activation, Multi-Org, services, access. |
| Verification date | August 12, 2026 | August 12, 2026 |
Custom enterprise quote
Glassbox
2M or 3M sessions
Price package, volume, retention, deployment, add-ons, and services.
Free entry plus quoted paid plans
Fullstory
30,000 sessions
Paid Business, Advanced, and Enterprise plans and add-ons use custom pricing.
Dated G2 snapshot
Glassbox reviews
Dated G2 snapshot
Fullstory reviews
Reviewer populations and use cases differ. Glassbox's higher score does not determine fit.
| Product | Recurring positive themes | Recurring cautions |
|---|---|---|
| Glassbox | Replay, journey and interaction visibility, common-task navigation, and technical investigation context. | Split or difficult-to-locate sessions, historical limits under some configurations, loading delays, and advanced learning. |
| Fullstory | Replay and search, common-workflow usability, funnels, behavioral insight, support context, and vendor support. | Advanced learning and configuration, feature or customization limitations, and occasional difficulty and price comments. |
Price the same scenario in both products
- Monthly web and mobile sessions and the required replay availability.
- Replay and analytics retention, environments, organizations, and identity scope.
- Support, services, API and export use, SSO, provisioning, roles, residency, and deployment.
- StoryAI, Mobile, Call Center, Voice of Customer, data activation, or other add-ons.
Do not compare hypothetical starting prices. Confirm session definitions, overage behavior, contracted entitlements, renewal terms, and deletion or export rights.
Which one fits your scenario?
Start with the team that owns the investigation and the evidence it must connect. A platform can have a feature and still be the wrong operating fit.
| Scenario | Stronger default fit | Why | Important caveat |
|---|---|---|---|
| Product designer | Fullstory | Focused analysis-to-replay workflow. | Glassbox fits broader operations. |
| UX research team | Fullstory | Behavioral patterns to selected recordings. | Neither replaces qualitative research. |
| Large enterprise digital team | Glassbox | Journeys, operations, mobile, VoC, records, deployment, services. | More implementation and governance. |
| Customer support organization | Depends | Fullstory: ticket/developer evidence. Glassbox: contact center, VoC, retained evidence. | Test identity, sharing, privacy, integration. |
| Mobile-app team | Glassbox: diagnostics; Fullstory: product investigation | Operational context versus focused mobile replay. | Fullstory add-on; test SDK/framework coverage. |
| Complex B2B customer portal | Depends | Operations versus product/UX investigation. | Neither has native account adoption. |
| Ecommerce organization | Fullstory: product/CRO; Glassbox: operations | Both cover funnels, journeys, maps, replay, performance. | Demonstrate one equivalent case. |
| Customer success needing company context | Neither; add account context | Supplied account properties do not change the default model. | Model account usage before replay. |
Who the evidence is for
Glassbox
Fullstory
Hymetry
Product and UX
Supported
Primary audience
Account-shaped product questions
Engineering
Technical and mobile diagnostics
Investigation handoff
Not the focus
Digital operations
A core emphasis
Narrower
Not offered
Support and contact centre
Explicitly addressed
Case investigation
Visit lookup only
Customer success
Needs a company-level model
Needs a company-level model
Companies, Users, adoption, Visits
No vendor integration is implied between these products. The customer-success row is the shared gap, and closing it is a data-model decision rather than a purchase.
Can one replace the other?
Capability overlap makes replacement possible, but workflow, deployment, retention, governance, and operating ownership determine whether it is sensible.
| Question | Short answer | Main compromise |
|---|---|---|
| Can Glassbox replace Fullstory? | Often in an enterprise program. | Teams may prefer Fullstory's workflow/$0 entry; migration changes taxonomy, training, allowances, retention. |
| Can Fullstory replace Glassbox? | For many product/UX/support workflows. | Less purpose-built for contact center, VoC, records, deployment choice, operational journeys. |
| Should a company use both? | Sometimes, with explicit boundaries. | Duplicate capture, privacy, identity, taxonomy, cost, and sources of truth. |
Using both needs an explicit application or ownership boundary. Interface preference alone usually creates duplicate capture and governance.
For an adjacent enterprise evaluation, see Contentsquare vs Fullstory.
Where Hymetry fits
Glassbox and Fullstory begin from experience investigation. Hymetry begins from B2B account context.
Hymetry organizes product behavior across product areas, grouped pages or features, Companies, Users, and Visits. A team can start with which customer companies adopted Reporting, whether activity is broad or champion-dependent, which users are changing momentum, and which areas remain unadopted.
Account starting point
Company and user context first
Product usage by company identifies the account, workflow, or person that deserves investigation before replay.
Session evidence
Visits behind a signal
A Visit connects session-level evidence with its user, company, pages, product areas, and timing.
Deliberate boundary
Not an enterprise replay substitute
Hymetry does not replace Glassbox's operational scope, Fullstory's mature investigation workflow, deep mobile diagnostics, a support platform, or APM.
Account context can identify where evidence is needed, but it does not promise immediate insight without integration, identity data, product activity, and a baseline period. See the conceptual boundary in session replay vs product analytics.
FAQ, methodology, and sources
Is Glassbox better than Fullstory?
No. Glassbox favors broad enterprise journey and operational programs; Fullstory favors focused product, UX, engineering, and support investigation.
Can Glassbox replace Fullstory?
Often at the capability level. Product and design teams may still prefer Fullstory's focused workflow and permanent free entry.
Which is better for UX teams?
Usually Fullstory. Glassbox becomes stronger when research must connect with operations, mobile performance, service evidence, or complex journeys.
Which is better for a large enterprise?
Often Glassbox when deployment, records, services, VoC, and operations matter. Fullstory remains enterprise-capable for product-led programs.
Which has stronger mobile support?
Glassbox emphasizes cross-channel diagnostics and package-included Mobile. Fullstory's capable Mobile add-on still marks Flutter replay Early Access.
Should a company use both?
Only with explicit application, owner, or evidence boundaries. Duplicate capture, privacy, identity, taxonomy, and cost usually favor one platform.
Where does Hymetry fit?
Hymetry starts with B2B Companies, Users, product areas, adoption, and Visits. It selects where to investigate; it does not replace either platform.
Methodology and evidence limits
- Verified August 12, 2026. Official product, help, and pricing pages led capability, package, privacy, governance, retention, and allowance research.
- G2 supplied dated ratings and themes; TrustRadius and Software Advice were secondary cross-checks.
- No hands-on test, procurement, SDK, security, support, or performance assessment occurred.
- Fit is editorial. Vendor AI, capture, anomaly, security, and impact statements remain claims.
- Price varies with traffic, replay, retention, mobile, export, deployment, services, and contract.
- Replay is observational; it proves neither intent, cause, root cause, nor prevalence.
Sources
Disclosure: Hymetry publishes this comparison and overlaps with these vendors in account-centric analytics and session-evidence use cases. Neither vendor paid for placement or reviewed the conclusions.
Official Glassbox product and documentation sources
- Glassbox platform overview
- Glassbox Session Replay
- Glassbox Customer Journey Analytics
- Glassbox Funnel Analysis
- Glassbox Interaction Maps and Heatmaps
- Glassbox Struggle and Error Analysis
- Glassbox Performance Analytics
- Glassbox Mobile App Analytics
- Glassbox Insights Assistant
- Glassbox Voice of the Silent
- Glassbox Data Privacy and Security
- Glassbox Digital Record Keeping and Session Vault
- Glassbox Integrations
- Glassbox Services and Customer Success
- Glassbox interactive platform tour
Official Fullstory product and documentation sources
- Fullstory platform overview
- Fullstory Session Replay
- Fullstory Product Analytics
- Fullstory Funnels and Conversions
- Fullstory Journey Maps
- Fullstory Heatmaps
- Fullstory Mobile Apps
- Fullstory StoryAI
- Fullstory Flutter mobile support and limitations
- Fullstory mobile heatmaps
- Fullstory StoryAI overview
- Fullstory Dev Tools guide
- Fullstory Dev Tools compared with browser DevTools
- Fullstory form abandonment
- Fullstory Form Privacy
- Fullstory custom user properties
- Fullstory Metrics
- Fullstory Spaces
- Fullstory supported integrations
- Fullstory Private by Default mode
- Fullstory URL privacy rules
- Fullstory SAML SSO
- Fullstory user roles
- Fullstory SCIM provisioning
- Fullstory data residency
- Fullstory settings Audit Trails API
- Fullstory session deletion
Pricing and package sources
Customer-review sources
- Glassbox customer reviews on G2
- Glassbox review themes on G2
- Fullstory customer reviews on G2
- Fullstory review themes on G2
- G2 customer-journey analytics category snapshot
- G2 comparison of Fullstory and Glassbox
G2 snapshots checked August 12, 2026: Glassbox 4.9/5 from 809 product reviews; Fullstory 4.5/5 from 1,052 reviews in G2's latest indexed category snapshot. Review counts change, pages can update at different times, and the populations are not normalized.
Independent comparison sources
These directories were used only to triangulate fit themes. Official documentation remains authoritative for product packaging, controls, and limits.
Video sources
- Official Glassbox Product Tour
- Official Fullstory overview resource
- Official Fullstory overview video on YouTube
No neutral current head-to-head video met the evidence threshold. The two selected clips are vendor-produced orientation, not independent comparison evidence.
Hymetry and editorial sources
The comparison also uses the task brief and the repository's canonical Hymetry product context. Product boundaries were not inferred from vendor overlap.
