# Transformini vs Gravis

The clearest difference is iOS requirement: Transformini at 13.0 against Gravis's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Transformini sells 4 in-app purchases, starting at $24.99 per month and Gravis sells 3 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Transformini ships an update every 9 days, Gravis fortnightly. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Transformini | Gravis |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Size | 46 MB | 47 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gharbi Mohamed Amin](https://appshunter.io/developer/1890869852) | [Four Dimensional Ltd](https://appshunter.io/developer/1893000556) |

## What reviewers say

### Transformini

[App page](https://appshunter.io/ios/app/transformini/id6761684927)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Personalized Diet Plan | $24.99 | per month |
| 1 Month Coaching | $99.99 | per month |
| 3 Months Coaching | $209.99 | per 3 months |
| 6 Months Coaching | $319.99 | per 6 months |


### Gravis

[App page](https://appshunter.io/ios/app/gravis-gym-tracker-and-coach/id6762120943)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Forge Pro Monthly | $7.99 | per month |
| Forge Pro Annual | $49.99 | per year |
| Forge Pro Lifetime | $149.99 | one-time |


## Frequently asked questions

### Is Transformini free?

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

### Is Gravis free?

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

### Do Transformini or Gravis have ads?

Neither Transformini nor Gravis shows ads.

### Which is updated more often, Transformini or Gravis?

Transformini ships an update every 9 days, and Gravis fortnightly. Most recently, Transformini was updated on November 5, 2026 and Gravis on November 9, 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.*