Comparison

Decaf AI vs StrengthBox

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

Head to head
About

Decaf AI

This app helps you break free from caffeine dependence with a personalized, science-backed program. Track your intake, receive guidance, and improve sleep and energy levels for a healthier lifestyle.

Highlights
  • Personalized caffeine reduction plan
  • Log caffeine intake with photos
  • Progress tracking and insights
  • Guidance to quit caffeine
  • Improve sleep and reduce stress
  • Science-backed program
Features
Read full description

Break free from caffeine dependence with Decaf. Our science-backed program helps you reduce, replace, and reset. Sleep better, stress less, and wake up naturally energized. Start your journey to a healthier, caffeine-free life today! HOW TO USE DECAF: 1. Answer questions about your caffeine intake to create your personalized plan. 2. Snap a pic or log your caffeine intake and see your progress. 3. Get tips, insights, and guidance to quit caffeine with ease. Decaf makes quitting caffeine simple and effective. Improve your sleep, reduce stress, and feel naturally energized—all with less effort. We’ll support you with the tools and insights you need to build a healthier, caffeine-free life. Got ideas or questions? Contact us at hello@decaf.app.

About

StrengthBox

Features
Read full description

StrengthBox — a minimalist training log built for strength training. Follow programs, log sets, hit personal records and see how strong you really are. No feed, no ads, no clutter. Just a fast, clean interface designed for the gym floor. Features: - Built-in programs — PPL, Full Body, Upper/Lower and more - Quick logging — sets, reps and weight with minimal taps - Automatic PRs — see instantly when you hit a new record - Strength Level — compare your strength to others in your age and weight class - Recovery Map — visual overview of muscle status after training - Workout history — volume, duration and muscle overview for every session - Weekly stats — keep track of your training frequency - Exercise library — hundreds of exercises with instructions and muscle maps - Apple Health — sync workouts and read HRV, sleep and resting heart rate StrengthBox Premium: - Crew — train with friends, see who's live and send props - Unlimited programs - Full workout history - PR progression graphs Terms of Use: https://strengthbox.vercel.app/terms Privacy Policy: https://strengthbox.vercel.app/privacy

Screenshots

Decaf AI4 screens
StrengthBox4 screens

Verdict

The call

The clearest difference is update cadence: StrengthBox at every 2 days against Decaf AI's every 6 weeks. Decaf AI's advantage is iOS requirement (13.4 vs 16.0). On price, ads, in-app purchases and device support 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. Decaf AI sells 4 in-app purchases, starting at $9.99 per 7 days and StrengthBox sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Decaf AI ships an update every 6 weeks, StrengthBox every 2 days. The most recent releases landed on October 15, 2026 and October 4, 2026 respectively.

Scorecard2 real differences · 8 level
Decaf AI versus StrengthBox: the parameters behind the verdict, then further details
ParameterDecaf AIStrengthBox
PriceFreeFree
Rating5.0 (8 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings8 — better—
Update frequencyEvery 6 weeksEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.4 — better16.0
Further details — not scored
Size63 MB41 MB
Age rating4+4+
DeveloperFearless Health LLCInnoveramera

In-app purchases

4 purchases

Decaf AI

Subscriptions4
  • Decaf Pro$9.997 Days
  • Decaf Pro$29.991 Year
  • Decaf Pro7 Days trial$49.991 Year
Show 1 more
  • Decaf Pro$49.991 Year
2 purchases

StrengthBox

Subscriptions2
  • Månad$5.991 Month
  • Årsplan7 Days trial$39.991 Year

Questions

Is Decaf AI free?
Decaf AI is free to download, with in-app purchases available.
Is StrengthBox free?
StrengthBox is free to download, with in-app purchases available.
Do Decaf AI or StrengthBox have ads?
Neither Decaf AI nor StrengthBox shows ads.
Which is updated more often, Decaf AI or StrengthBox?
Decaf AI ships an update every 6 weeks, and StrengthBox every 2 days. Most recently, Decaf AI was updated on October 15, 2026 and StrengthBox on October 4, 2026.

Other comparisons