Frez: Isometric Training
By Donghyun Kim
Frez is an isometric training app for climbers and athletes that visualizes force output via Bluetooth-connected crane scales on iOS and Android.
The App DNA
What makes this app unique?
Users hire Frez to obtain professional-grade, data-driven strength assessments without the high cost of specialized laboratory dynamometers.
For Climbers and strength athletes who use isometric training and require precise, data-driven feedback on force output.
What does it look like?
Key features
Visualizes live force output via Bluetooth-connected crane scales. Revenue link: Hardware-dependent feature creates a brand barrier by locking users into the Frez data ecosystem.
Standardized tests for Maximum Voluntary Contraction and Critical Force. Revenue link: Retention lever providing objective progress data that encourages subscription renewal.
Configurable isometric training sessions with control over reps, sets, and target force. Revenue link: Premium-tier gate driving conversion for advanced athletes.
How much does it cost?
Subscription model anchored to recurring billing cycles, with auto-renewal managed via Apple account settings.
Velocity
Maintenance developmentUX improvementsperformanceShow more...
Frez: Isometric Training currently operates at a maintenance cadence, with only one release recorded in the recent window. Development is focused on technical refinements, specifically improving the reliability of CSV exports for grip assessment data. The addition of absolute value readings for force data represents a minor functional update rather than a shift toward high-frequency feature delivery. The current pace suggests a stable, low-frequency update cycle.
Who built it?
Donghyun Kim
3 apps tracked · Health & Fitness
Passlane - Race Pass
HumTrack: Hum to MIDI DAWUser Sentiment
What do users think recently?
Review voice lately leans excited. Users appreciate the app provides a cost-effective training solution that functions reliably with affordable third-party hardware and active developer engagement and frequent updates foster a positive and supportive community environment.
How are ratings & reviews evolving?
What users say, by theme
- The app provides a cost-effective training solution that functions reliably with affordable third-party hardware
- Active developer engagement and frequent updates foster a positive and supportive community environment
- Gating essential training metrics behind a subscription wall frustrates long-term users who previously accessed them
20 of 20 recent reviews analyzed · moderate confidence · Excited overall
Read the full review analysisUnlock 1 more frustration theme and 1 user request, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Frez: Isometric Training
How's the Health & Fitness market?
Frez holds a 5.0-star rating across 187 total ratings on iOS and Android. The recent update cadence and focus on CSV export reliability signal a shift toward professional-grade data utility for power users.
Read the market outlookThe rivals identified
Unlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for Frez: Isometric Training
Where is it heading?
The fitness-tech market is consolidating around data-driven training, and Frez's hardware-linked approach positions it well for power users. However, the current monetization friction risks ceding the casual-climbing segment to lighter, ad-supported rivals if the core training tools remain locked behind a paywall.
- Performance regressions in the latest update (startup crashes) erode the daily active habit, which compounds the rating drag already visible on Android.
- The latest release adds absolute value displays and improves CSV export reliability, showing active feature investment rather than maintenance-mode stagnation.
The SWOT
- Bluetooth-enabled hardware integration creates a high switching cost for users
- Standardized assessment protocols provide objective data that drives retention
- Active developer engagement fosters community-driven loyalty
- Education partnerships untapped as B2B distribution
- Category leader missing wearable integration
Next best moves
Revert MVC and target-weight settings to the free tier because gating them is the #1 churn driver → stabilize long-term retention
+ 1 more prioritized moveThe counter-intuitive read
The app's reliance on third-party hardware is not…
Read the full takeSince the last report: The app rebranded from ClimbHarder to Frez and updated its strategic outlook to better frame its hardware-agnostic business model as a competitive advantage.
Bottom line
Frez defends its niche through hardware-linked data precision, but the aggressive paywalling of core training tools risks eroding the community trust that fuels its growth, so the PM must prioritize stability and re-evaluate the free-tier value proposition to prevent churn.
Unlock 3 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.
Access the full report for freeSources
- [1] Play Store reviews
- [2] App Store
- [3] Developer website, source
Report last updated