# Corpus vs Flex Gym

Corpus and Flex Gym 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.

Corpus ships an update every 3 months, Flex Gym every 4 months. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Corpus | Flex Gym |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Size | 78 MB | 22 MB |
| Requires iOS | **15.6** | 16 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Webbinart Ltd](https://appshunter.io/developer/1481047040) | [Gym Booking LP](https://appshunter.io/developer/1722435184) |

## What reviewers say

### Corpus

[App page](https://appshunter.io/ios/app/corpus/id6738388009)

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

**In-app purchases:** none


### Flex Gym

[App page](https://appshunter.io/ios/app/flex-gym/id6755895743)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Corpus free?

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

### Is Flex Gym free?

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

### Do Corpus or Flex Gym have ads?

Neither Corpus nor Flex Gym shows ads.

### Which is updated more often, Corpus or Flex Gym?

Corpus ships an update every 3 months, and Flex Gym every 4 months. Most recently, Corpus was updated on October 4, 2026 and Flex Gym on October 11, 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.*