Comparison

Caffinity vs Flash

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Caffinity

Features
Read full description

Caffinity – Smarter Caffeine Tracking Caffinity helps you track your caffeine intake, understand what is still active in your body, and make better decisions around focus, limits, and sleep. Whether you drink coffee, tea, soda, energy drinks, or supplements, Caffinity gives you a fast, clear, and privacy-friendly way to stay on top of your habits. FEATURES • Fast logging – Add drinks in seconds with preloaded items, custom items, and Quick Add • Smart Logging – Get helpful suggestions based on your habits and logging history • Current caffeine tracking – See how much caffeine is still active in your body • Sleep guidance – Check Sleep Readiness and see when your caffeine level should be low enough for bed • Daily limits – Track your intake against your daily limit and personalized guidance • Caffeine Calculator – Estimate caffeine for drinks and custom entries • History and trends – Review charts, daily details, and a heatmap of your habits • Widgets and Lock Screen support – Stay updated and log quickly from your Home Screen or Lock Screen • Siri Shortcuts – Log items, check your caffeine level, and more with Shortcuts • Apple Health sync – Sync caffeine entries and body weight with Apple Health • iCloud backup and restore – Keep a backup of your data and restore it when needed • Custom items – Save your own drinks, supplements, amounts, colors, and icons • Achievements and streaks – Stay motivated and keep track of your progress • Privacy-first – Your data stays on your device by default • Optional AI features* – Analyze a drink from a photo or text using your own OpenAI API key Caffinity is built for people who want a clearer view of their caffeine habits without unnecessary complexity. Whether you want to cut back, protect your sleep, or simply stay more aware of what you drink, Caffinity gives you the tools to do it. * AI features require your own OpenAI API key.

About

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.

Highlights
  • 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
Features
Read full description

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

Caffinity4 screens
Flash4 screens

Verdict

The call

The clearest difference is iOS requirement: Flash at 13.0 against Caffinity's 17. On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Caffinity ships an update fortnightly, Flash every 2 weeks. The most recent releases landed on September 22, 2026 and August 5, 2026 respectively.

Scorecard1 real difference · 8 level
Caffinity versus Flash: the parameters behind the verdict, then further details
ParameterCaffinityFlash
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS1713.0 — better
Further details — not scored
Size45 MB25 MB
Age rating12+4+
DeveloperVille ScholinStudio Foam

In-app purchases

None

Caffinity

No in-app purchases

None

Flash

No in-app purchases

Questions

Is Caffinity free?
Caffinity is free to download, with no in-app purchases.
Is Flash free?
Flash is free to download, with no in-app purchases.
Do Caffinity or Flash have ads?
Neither Caffinity nor Flash shows ads.
Which is updated more often, Caffinity or Flash?
Caffinity ships an update fortnightly, and Flash every 2 weeks. Most recently, Caffinity was updated on September 22, 2026 and Flash on August 5, 2026.

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