# Train Slimmer vs GainBlocks

The clearest difference is in-app purchases: Train Slimmer at none against GainBlocks's 2. Train Slimmer also leads on ads (none vs shown) and iOS requirement (9.0 vs 15.1). On price, update cadence and device support there is nothing between them.

Both are free to download. GainBlocks sells 2 in-app purchases, starting at $6.99 per month. Train Slimmer asks for nothing beyond the download.

Train Slimmer ships an update every 11 days, GainBlocks every 9 days. The most recent releases landed on October 4, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Train Slimmer | GainBlocks |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 days | **Every 9 days** |
| Size | 58 MB | 58 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Grib Leisure IT Innovations B.V.](https://appshunter.io/developer/1358470822) | [Mike Hendriks](https://appshunter.io/developer/1850111344) |

## What reviewers say

### Train Slimmer

[App page](https://appshunter.io/ios/app/train-slimmer/id1404327712)

**Features:** macOS Compatibility

**In-app purchases:** none


### GainBlocks

[App page](https://appshunter.io/ios/app/gainblocks-workout-tracker/id6756027419)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GainBlocks Monthly | $6.99 | per month |
| GainBlocks Annual | $44.99 | per year |


## Frequently asked questions

### Is Train Slimmer free?

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

### Is GainBlocks free?

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

### Do Train Slimmer or GainBlocks have ads?

GainBlocks shows ads; Train Slimmer does not.

### Which is updated more often, Train Slimmer or GainBlocks?

Train Slimmer ships an update every 11 days, and GainBlocks every 9 days. Most recently, Train Slimmer was updated on October 4, 2026 and GainBlocks on October 16, 2026.

---

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