# Proteus Motion vs Sunday Swing

The clearest difference is ads: Proteus Motion at none against Sunday Swing's shown. Sunday Swing's advantage is update cadence (every 3 weeks vs every 6 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Proteus Motion ships an update every 6 months, Sunday Swing every 3 weeks. The most recent releases landed on September 10, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Proteus Motion | Sunday Swing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/proteus-motion/id1540100362/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 38 MB | 117 MB |
| Requires iOS | 15.1 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Proteus Motion Inc.](https://appshunter.io/developer/1540100364) | [Sunday Swing, LLC](https://appshunter.io/developer/1728513744) |

## What reviewers say

### Proteus Motion

[App page](https://appshunter.io/ios/app/proteus-motion/id1540100362)

This app provides advanced performance training and recovery analytics. It enables low-impact, high-efficiency 3D resistance training. A Proteus System user account is required to use the app.

**Highlights:** Performance training analytics, Recovery analytics, 3D resistance training, High efficiency training, Low-impact training

**Features:** macOS Compatibility

**In-app purchases:** none


### Sunday Swing

[App page](https://appshunter.io/ios/app/sunday-swing/id6476991080)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Proteus Motion free?

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

### Is Sunday Swing free?

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

### Do Proteus Motion or Sunday Swing have ads?

Sunday Swing shows ads; Proteus Motion does not.

### Which is updated more often, Proteus Motion or Sunday Swing?

Proteus Motion ships an update every 6 months, and Sunday Swing every 3 weeks. Most recently, Proteus Motion was updated on September 10, 2026 and Sunday Swing on September 13, 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.*