# GainzUp vs Hamstra

The clearest difference is in-app purchases: Hamstra at none against GainzUp's 16. Hamstra also leads on ads (none vs shown). GainzUp's advantage is update cadence (every 5 days vs fortnightly) and device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. GainzUp sells 16 in-app purchases, starting at $7.99 per month. Hamstra asks for nothing beyond the download.

GainzUp ships an update every 5 days, Hamstra fortnightly. The most recent releases landed on October 30, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | GainzUp | Hamstra |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/gainzup/id6751576980/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 458 MB | 100 MB |
| Requires iOS | **15.5** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SMART SCIENCE GATE INFORMATION TECHNOLOGY](https://appshunter.io/developer/1709481279) | [FITsociety BV (Apps)](https://appshunter.io/developer/1756257213) |

## What reviewers say

### GainzUp

[App page](https://appshunter.io/ios/app/gainzup/id6751576980)

This app transforms fitness into a social experience with AI-powered exercise tracking and community challenges. Connect with others, compete in group battles, and visualize your progress with detailed analytics. It's designed to motivate users of all levels through gamified features and a supportive network.

**Highlights:** AI-powered exercise tracking, Real-time form analysis, Automatic rep counting, Community clan system, Clan vs clan battles, Gamified fitness experience, Comprehensive analytics

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

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $7.99 | per month |
| Monthly Premium | $7.99 | per month |
| Yearly Premium | $199.99 | per year |
| Double Up 4 | $0.99 | one-time |
| Double Up 50 | $0.99 | one-time |
| Double Up 100 | $0.99 | one-time |
| Coins 5000 | $0.99 | one-time |
| Double Up 8 | $1.99 | one-time |
| Coins 10000 | $1.99 | one-time |
| Double Up 10 | $2.99 | one-time |
| Double Up 19 | $4.99 | one-time |
| Coins 30000 | $4.99 | one-time |
| Double Up 28 | $6.99 | one-time |
| Coins 45000 | $7.99 | one-time |
| Coins 100000 | $14.99 | one-time |
| Coins 250000 | $29.99 | one-time |


### Hamstra

[App page](https://appshunter.io/ios/app/hamstra-pt/id6761917068)

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

**In-app purchases:** none


## Frequently asked questions

### Is GainzUp free?

GainzUp is free to download, with in-app purchases available.

### Is Hamstra free?

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

### Do GainzUp or Hamstra have ads?

GainzUp shows ads; Hamstra does not.

### Which is updated more often, GainzUp or Hamstra?

GainzUp ships an update every 5 days, and Hamstra fortnightly. Most recently, GainzUp was updated on October 30, 2026 and Hamstra on October 6, 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.*