# SwimZones — Heart Rate Zones for Swimmers

> Heart Rate Zones for Swimmers (iPhone/iPad app by Sven Schroter.)

- Source: https://appshunter.io/ios/app/swimzones/id6787476048 (this page in markdown: same URL + `.md`)
- Developer: [Sven Schroter](https://appshunter.io/developer/6787476050)
- Category: Health & Fitness, Sports
- Price: Free
- Age rating: 4+
- Requires: iOS 17.6 · 10 MB
- Languages: American English, German (Germany)
- Released: 2026-07-06
- Data updated: 2026-08-26
- User reviews in markdown: https://appshunter.io/ios/app/swimzones/id6787476048/reviews.md

## What is SwimZones?

SwimZones is built for swimmers who want to train with heart rate zones using Apple Watch and review their workouts on iPhone.

During your swim, the Apple Watch app displays your current heart rate zone in a large, color-coded view that is easy to read during short rests.

Configure your maximum heart rate, choose a 3-zone or 6-zone model, set your pool length and let SwimZones calculate your training zones automatically. You can also adjust each zone manually to match your individual training system.

After your workout, review your training in the companion iPhone app with a clear workout history, heart rate charts and detailed time spent in each heart rate zone. Workout data is stored in Apple Health and remains available for later analysis.

Key features:
- Real-time heart rate zone display on Apple Watch
- Large color-coded zone number
- Companion iPhone app with workout history and analysis
- Heart rate charts
- Time spent in each heart rate zone
- 3-zone and 6-zone training models
- Automatic zone calculation
- Adjustable heart rate limits
- Pool length selection
- Apple Health integration
- Designed specifically for swimmers

No account, no ads, no cloud tracking

SwimZones helps you stay focused on your swim while making it easy to understand your training intensity afterwards.

The app is intended exclusively for sports training and is not a medical device. It does not provide medical advice, diagnosis or treatment. Heart rate data is used only to display and analyze training zones during swimming workouts.


## Version history (last 5 releases)

### 2.0 — 2026-08-19

Welcome to the biggest SwimZones update yet!

- New companion iPhone app for reviewing your swim workouts
- Workout history with all recorded SwimZones sessions
- Heart rate charts for every workout
- Detailed time spent in each heart rate zone
- Improved workout details and analysis
- Apple Watch and iPhone now work together as one seamless experience
- Performance improvements and bug fixes

Thank you for using SwimZones and happy swimming!

### 1.4 — 2026-08-06

- Fixed a bug with Apple Watch SE with watch OS 10, jumping directly to overview.
- Pool length can now be adjusted on the start screen
- When using SwimZones for the first time, SwimZones asks for the maximal heart rate or age, to calculate heart rate
- Settings pages can now be accessed by swiping left on the start screen
- RPE (Rate of Perceived Exertion, 1–10) is requested as additional information when data is saved
- Total distance is now saved in Apple Health
- Average pace is now calculated and saved in Apple Health
- Pressing the Digital Crown and the side button simultaneously pauses the recording
- Fixed Translations on some buttons
- Default Language changed to English

### 1.2 — 2026-07-16

Answered new questions in the App Store about data privacy and age verification.

### 1.1 — 2026-07-08

Maximal heart rate can be calculated automatically using the age of the user with 208 - 0,7 * Age.

### 1.0 — 2026-07-06

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*