CHASKi.fit vs Swim Time Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CHASKi.fit
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Elevate your training with the CHASKi app, the perfect companion for athletes and fitness enthusiasts seeking to optimize performance. Packed with cutting-edge features, this version brings a revamped Ramp Test system, offering programmed protocols and enhanced data capture for simpler testing. The update lets you rename your CHASKi, track different sport types, and see metrics such as VTs and VO2max directly from your mobile app. Stay ahead of your goals with frequent updates that will continuously introduce new features and refine your user experience. CHASKi is your trusted partner in breathing better, training smarter, and pushing limits. Download now and redefine the way you optimize your fitness!
Swim Time Calculator
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Optimize your swim performance with our new Swim Pace Calculator! This app helps coaches and swimmers calculate potential improvements in clean swim time by analyzing changes in two key parameters: stroke rate (SR) and stroke length (SL). Developed by the Czech analysis company umimplavat.cz, this tool is designed to provide actionable insights to enhance training and competition outcomes.
Screenshots
Verdict
The clearest difference is iOS requirement: Swim Time Calculator at 13.0 against CHASKi.fit's 16.0. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CHASKi.fit ships an update every 6 weeks, Swim Time Calculator every 5 weeks. Both last shipped on October 7, 2026.
| Parameter | CHASKi.fit | Swim Time Calculator |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 28 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | IC Innovations | umimplavat.cz |
In-app purchases
CHASKi.fit
No in-app purchases
Swim Time Calculator
No in-app purchases
