Fitness Challenge Tracker vs Sterk.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fitness Challenge Tracker
Monitor your progress towards monthly Apple Watch Fitness challenges and earn collectible badges. This app integrates with Apple Health to provide daily insights and track your efforts, designed for simplicity and privacy.
- Monitor monthly Fitness challenges
- Earn collectible badges
- Integrates with Apple Health
- Provides daily progress insights
- Simple, privacy-focused design
- Minimal Health data permissions
Read full descriptionHide full description
People who wear an Apple Watch get a new Fitness challenge every month. When they beat that challenge, a beautiful collectible badge is awarded inside the Fitness app. Are you into collecting those? If so, Fitness Challenge Tracker is the prefect tool for you to monitor your progress towards one. It integrates with Apple's Health app to read relevant data and get you insights about the least amount of work you need to do each day. Designed to be as simple as if it were a missing feature of Apple’s Fitness app, it gives you fresh insights every time you switch back to the app. The only thing it requires you to do is to look up and enter your challenge at the beginning of each month, as there is no way to detect your challenge automatically. One of the things we pride ourselves with is not collecting, saving or transmitting any of your data. We know absolutely nothing about our users. This app will even go as far to only ask you for one Health reading permission at a time. Only bare minimum needed to work for you.
Sterk.
Effortlessly log your exercise sets with intelligent predictions and review comprehensive statistics for each movement and training session. This streamlined application is designed to help you achieve your fitness objectives.
- Smart set prediction
- Detailed exercise stats
- Workout logging
- Intuitive interface
- Fitness goal tracking
Read full descriptionHide full description
Sterk makes tracking your workouts easy. Log your sets quickly with smart set prediction and check out detailed stats for every exercise and workout. It’s minimal, intuitive, and designed to help you stay on top of your fitness goals. Terms of Use (UELA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sterkapp.github.io/privacy-policy/
Screenshots
Verdict
The clearest difference is price: Sterk. at Free against Fitness Challenge Tracker's $0.99. Fitness Challenge Tracker's advantage is review sentiment (100% vs 80%) and rating (4.9 vs 4.6). On ratings volume, 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
Sterk. is free to download; Fitness Challenge Tracker costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Fitness Challenge Tracker holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 8 and 5 respectively. Written reviews point the same way: 100% of Fitness Challenge Tracker's written reviews are positive against 80% of Sterk.'s.
Fitness Challenge Tracker ships an update every 6 weeks, Sterk. every 3 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Fitness Challenge Tracker | Sterk. |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.9 (8 ratings) — better | 4.6 (5 ratings) |
| Positive reviews | 100.0% of reviews — better | 80.0% of reviews |
| Number of ratings | 8 — better | 5 |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 6 MB | 76 MB |
| Age rating | 4+ | 4+ |
| Developer | UX First | Thomas Theodor Corne Rooskens |
Customer experience
Fitness Challenge Tracker
Sterk.
In-app purchases
Fitness Challenge Tracker
No in-app purchases
Sterk.
No in-app purchases
Questions
Is Fitness Challenge Tracker free?
Is Sterk. free?
Which has better reviews, Fitness Challenge Tracker or Sterk.?
Do Fitness Challenge Tracker or Sterk. have ads?
Which is updated more often, Fitness Challenge Tracker or Sterk.?
Other comparisons
