Crimp Log vs Flash
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Crimp Log
This app helps climbers track and analyze all aspects of their training, from bouldering and sport climbing sessions to finger training and flexibility. It offers quick logging, visual analytics, and personalized guidance to improve climbing performance.
- Log bouldering and sport climbing
- Track finger training and hangboard
- Log climbing-specific workouts
- Analyze training progress with charts
- Review ascent history and grades
- Receive personalized training guidance
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CrimpLog is a climbing training log built to track, analyze, and improve every part of your climbing performance—not just your sends. Designed specifically for climbers, the app focuses on logging and analyzing climbing-related training, including climbs, finger training, climbing-related workouts, and flexibility, all in one place. Track All Your Climbing Training • Log bouldering and sport climbing sessions • Log finger training, hangboard, and block-pull sessions • Track climbing-specific calisthenics and weight workouts • Log flexibility and mobility sessions that support climbing Fast, Purpose-Built Logging • Designed for quick, in-session logging • Climbing-specific timers for hangs, intervals, and workouts • Simple inputs that reduce friction during training Visual Training Analytics • Interactive charts to track progress over time • Finger training analytics designed specifically for hangboard sessions • Review trends across climbs, training volume, and consistency Climbing Log & Ascent History • Keep a record of your ascents and grades • Look back on when and how often you sent climbs • Easily review past sessions and milestones Personalized Training Guidance • Suggested exercises based on your strengths and weaknesses • Weekly focus areas informed by your training history • Guidance designed to support, not to replace, your own training decisions Focused by Design • Built exclusively for climbing training • Designed by climbers, for climbers
Flash
This app provides structure for climbers to plan and execute their gym training sessions. Build custom workouts from scratch or use pre-made templates, combining on-wall and off-wall exercises. Adjust your routine on the fly to match your daily performance.
- Build custom training sessions
- Library of climbing-focused defaults
- Mix on-wall and off-wall training
- Broad exercise library (strength, calisthenics, flexibility)
- Precise set, rep, load, and rest time settings
- Edit routines mid-session
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You show up to the gym, don't have a plan, do a short warm-up, and go straight to projecting. Sound familiar? Flash Forward changes that. Flash Forward is for climbers who want to bring structure to their training. Whether you're following a coach's program, a published plan, or your own system, the app gives you a simple way to build sessions once and execute them in the gym. Open the app, hit start, and follow your plan. Build sessions from scratch or customize from a library of climbing-focused defaults. Mix on-the-wall and off-the-wall training in the same session, and pull from a broad exercise library covering strength, calisthenics, and flexibility. Set sets, reps, load, rest times, and RPE as precisely as you want, or keep it simple. Flash Forward is the only climbing training app where you can combine warm-up, strength, flexibility, and on-wall routines in a single session. Edit reps, sets, load, or swap exercises mid-session, without stopping or restarting. Just adjust on the fly based on how you feel that day. Train with purpose. Climb higher.
Screenshots
Verdict
The clearest difference is device support: Flash at 3 against Crimp Log's 1. Flash also leads on iOS requirement (13.0 vs 17.6). Crimp Log's advantage is ratings volume (3 vs 1). On price, rating, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Crimp Log against 5.0 for Flash. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
Crimp Log ships an update every 3 weeks, Flash every 2 weeks. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.
| Parameter | Crimp Log | Flash |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Hyorok Lee | Studio Foam |
Customer experience
Crimp Log
Flash
In-app purchases
Crimp Log
No in-app purchases
Flash
No in-app purchases









