Flash vs Diem
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Diem
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What if you knew exactly how many days you have left to live? DIEM calculates your life expectancy from your profile and shows you, in real numbers, the time already lived and the time remaining. Not to cause anxiety. To stop letting days go by without noticing them. Every morning, a quote from the great Stoic philosophers — Seneca, Marcus Aurelius, Epictetus. To start the day with intention. Every week, a visualization of your year to stay grounded in the present. What DIEM does — Calculates your remaining days from your date of birth, your country and your lifestyle — Displays a different Stoic quote every morning — Visualizes your year week by week — Keeps a history of your favorite quotes — Stores all your data locally, on your iPhone only Why DIEM? Carpe diem doesn't mean "enjoy every moment." It means: seize the day before it's too late. DIEM is here to remind you. Every morning, quietly.
Screenshots
Verdict
The clearest difference is device support: Flash at 3 against Diem's —. Flash also leads on iOS requirement (13.0 vs 18.6). On price and in-app purchases 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.
| Parameter | Flash | Diem |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 weeks | — |
| Ads | No | — |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | — |
| Requires iOS | 13.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 25 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Studio Foam | SAS Aitom |
In-app purchases
Flash
No in-app purchases
Diem
No in-app purchases









