Swim Trace vs I.Swim
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Swim Trace
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Swim Trace is the simple, focused log built for competitive swimmers. Record every race and practice, track your splits, and watch your times drop. RECORD EVERY SWIM - Save times by stroke, distance, and course (short / long) - Add splits and lap times - Capture meet name, lane, round, and place - Attach photos to any record SEE YOUR PROGRESS - Automatic personal bests for every event - Trend charts that show your times improving - Fast, filterable history of every swim BUILT FOR SWIMMERS - Clean, water-themed design - Works fully offline - no account required - Your data stays on your device PREMIUM - Remove all ads with an optional monthly subscription - Support independent development Whether you're chasing a PB, prepping for a meet, or tracking daily practice, Swim Trace keeps your whole swimming history in one place. ---------- Ad-Free Plan (Subscription) An auto-renewable monthly subscription that removes all ads. - Length / Price: 1 month / price shown in the app - Payment is charged to your Apple ID at confirmation of purchase - Auto-renews unless canceled at least 24 hours before the period ends; renewal is charged within 24 hours before the period ends - Manage or cancel anytime in your Apple ID account settings - Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - Privacy Policy: https://tsuyoshi-developer.vercel.app/
I.Swim
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Not every swimmer needs a smartwatch to know they're getting faster. This app is for the pool regulars who prefer to log their sessions by hand — after the swim, with a clear head, when the numbers actually mean something. Distance covered, time in the water, how each stroke felt. The pace calculates itself. Personal bests update on their own. Over weeks and months, the picture becomes clear. Which strokes are improving. Where the plateaus are. What a good training period actually looks like compared to a slow one. No wearable required. No automatic tracking. Just an honest record of the work you're putting in.
Screenshots
Verdict
The clearest difference is in-app purchases: I.Swim at none against Swim Trace's 1. I.Swim also leads on ads (none vs shown) and iOS requirement (15.6 vs 17.0). On price 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
Both are free to download. Swim Trace sells 1 in-app purchase, starting at $1.99 per month. I.Swim asks for nothing beyond the download.
| Parameter | Swim Trace | I.Swim |
|---|---|---|
| Price | Free | Free |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 14 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Tsuyoshi Matsuoka | Sven Boer |
In-app purchases
Swim Trace
- SwimTrace Premium (Monthly)$1.991 Month
I.Swim
No in-app purchases







