FullStory's free plan allows a much larger session volume (30,000/month) and adds StoryAI-driven analysis, but every paid tier requires a custom quote;…
Best for FullStory: Teams that want a large free-tier session allowance (30,000 sessions/month, 12-month retention) and StoryAI-driven behavioral insights, and don't mind requesting a quote once they need to upgrade.
Best for Mouseflow: Teams that want transparent, published pricing at every paid tier plus dedicated form analytics and friction detection, and can work within a smaller free-plan session allowance.
At a Glance
FullStory
Mouseflow
Primary category
Developer Tools
Developer Tools
Rating
Not documented
Not documented
Pricing model
Freemium (session-based subscription)
Freemium / Subscription
Starting price
Free plan (30,000 sessions/month); paid plans from about $199/month
Free (paid plans from $25/month)
Free plan
Yes
Yes
Free trial
Yes
Yes
Platforms
Web
Web
Team collaboration
Not documented
Not documented
AI features
Yes
Yes
Public API
Yes
Not documented
Key Differences
Free plan session volume and retention
FullStory: FullstoryFree offers 30,000 monthly sessions with 12 months of retention for up to 10 users, no credit card required.
Mouseflow: Free forever plan limited to 500 sessions/month with only 1-month retention.
Sites with meaningful traffic will exhaust Mouseflow's free tier quickly but can operate much longer on FullStory's free allowance.
Paid pricing transparency
FullStory: Business, Advanced, and Enterprise plans are all custom, contact-sales pricing with no published rate.
Mouseflow: Essential ($25/month), Advanced ($109/month), and Premium ($319/month) are all published with exact session, project, and retention limits.
Budget planning is far more predictable with Mouseflow's published tiers than with FullStory's quote-only model.
Form analytics and friction detection
FullStory: No dedicated form-analytics or friction-detection feature is listed.
Mouseflow: Includes dedicated form analytics (reveals why users abandon forms) and friction detection (flags moments where users struggle).
Teams focused on form/checkout abandonment get a purpose-built feature with Mouseflow that isn't documented for FullStory.
AI insight approach
FullStory: StoryAI turns behavioral data into insights teams can query directly.
Mouseflow: Mina AI offers real-time guidance on sessions and heatmaps, plus an MCP server letting AI assistants query behavior data directly.
Both offer AI-assisted analysis, but Mouseflow additionally exposes an MCP server for external AI assistant integration, which isn't mentioned for FullStory.
Feature-by-Feature
Core Features
Feature
FullStory
Mouseflow
Session replay
Available
Available
Heatmaps
Available
Available
Conversion funnels
Available
Available
Form analytics
Not documented
Available
Mobile analytics
Available
Not documented
Pricing & Plans
Feature
FullStory
Mouseflow
Free plan
Available
Available
Published paid-tier pricing
Unavailable
Available
AI Capabilities
Feature
FullStory
Mouseflow
AI-driven behavioral insights
Available
Available
MCP server for AI assistants
Not documented
Available
Pricing Compared
Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.
FullStory
Free — $0 Monthly
Business — From approximately $199/month Annual (monthly available)
Advanced — From approximately $499/month Annual (monthly available)
Retroactive search lets teams investigate questions they did not think to track in advance
Generous free plan (30,000 sessions/month) for evaluating the product
StoryAI reduces manual time spent reviewing session recordings
Deep integration ecosystem with existing analytics, support, and collaboration tools
Cons
Session-based pricing can become expensive quickly for high-traffic sites
Enterprise pricing is not published and requires a sales negotiation
Recording and indexing every session raises privacy and PII-masking configuration overhead
Less suited to teams wanting pure quantitative event analytics without session replay overhead
Mouseflow
Pros
Combines session replay, heatmaps, funnels, and form analytics in one platform rather than requiring separate tools
Permanent free plan makes it accessible for small sites and testing before committing to a paid tier
Friction Score helps teams prioritize which sessions to review instead of watching recordings at random
Denmark-based with GDPR-conscious data handling, appealing to EU-focused businesses
Detailed form analytics that go deeper than many lower-cost competitors
Cons
Session and data retention limits on lower tiers can be restrictive for higher-traffic sites
Advanced features like API access and SSO are reserved for the more expensive Premium and Enterprise tiers
Session-based pricing means costs can rise quickly as traffic grows
Some users report a learning curve to fully use funnel and journey analytics features
Free plan's one-month data retention is short for tracking longer-term trends
Use Cases
Choose FullStory: Teams that want a large free-tier session allowance (30,000 sessions/month, 12-month retention) and StoryAI-driven behavioral insights, and don't mind requesting a quote once they need to upgrade.
Choose Mouseflow: Teams that want transparent, published pricing at every paid tier plus dedicated form analytics and friction detection, and can work within a smaller free-plan session allowance.
Need both: Conversion-optimization teams that use FullStory's larger free-tier volume for high-traffic marketing pages while relying on Mouseflow's form analytics and friction detection specifically on checkout or signup flows.
FullStory
Diagnosing checkout and conversion friction — An e-commerce product team uses FullStory's session replay and frustration signals to find where users abandon the checkout flow and prioritize fixes accordingly.
Customer support ticket investigation — A customer support team pulls up the exact recorded session referenced in a bug report to see precisely what a user experienced, cutting down back-and-forth troubleshooting.
Post-release regression detection — An engineering team searches sessions for spikes in error clicks or JavaScript errors immediately after a deploy to catch regressions before they generate widespread support tickets.
Mouseflow
Ecommerce Conversion Optimization — Online stores use Mouseflow's funnels and session replay to identify where shoppers abandon checkout and fix friction in the purchase flow.
SaaS Onboarding Analysis — Product teams review session recordings and form analytics to see where new users get stuck during signup or trial onboarding.
Landing Page Testing — Marketing teams use heatmaps and feedback surveys to understand engagement with campaign landing pages before and after design changes.
Frequently Asked Questions
Does FullStory have a free plan?
Yes, FullstoryFree offers 30,000 monthly sessions and 12 months of retention for up to 10 users, no credit card required.
How much do FullStory's paid plans cost?
Pricing is custom; you need to request pricing and a demo from FullStory.
What is StoryAI?
FullStory's AI feature that transforms behavioral data into insights teams can query in natural language.
Does Mouseflow have a free plan?
Yes, free forever for 500 sessions/month with 1-month retention.
What's the cheapest paid Mouseflow plan?
The Essential plan starts at $25/month.
Does Mouseflow have AI features?
Yes, Mina AI provides real-time guidance on sessions and heatmaps.