# CompEngine vs Swimstr

CompEngine and Swimstr are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CompEngine ships an update every 3 weeks, Swimstr monthly. The most recent releases landed on October 12, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | CompEngine | Swimstr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (25 ratings)](https://appshunter.io/ios/app/compengine/id1636980535/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Ad-supported | — |
| Size | 37 MB | 29 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [CompEngine, LLC](https://appshunter.io/developer/1636980537) | [LK Swim School Inc.](https://appshunter.io/developer/1446249930) |

## What reviewers say

### CompEngine

[App page](https://appshunter.io/ios/app/compengine/id1636980535)

This app fosters a competitive environment for users to connect and improve their skills. It aims to be a place where achievements are recognized and new friendships can form, regardless of prior experience.

**Highlights:** Competitive platform, Skill improvement, Community building, Friendship creation, Success celebration

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Swimstr

[App page](https://appshunter.io/ios/app/swimstr-instructor/id6479749216)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CompEngine free?

CompEngine is free to download, with no in-app purchases.

### Is Swimstr free?

Swimstr is free to download, with no in-app purchases.

### Do CompEngine or Swimstr have ads?

Neither CompEngine nor Swimstr shows ads.

### Which is updated more often, CompEngine or Swimstr?

CompEngine ships an update every 3 weeks, and Swimstr monthly. Most recently, CompEngine was updated on October 12, 2026 and Swimstr on September 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*