# Flex vs YPM

The clearest difference is in-app purchases: Flex at none against YPM's 5. YPM's advantage is update cadence (every 4 days vs every 3 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. YPM sells 5 in-app purchases, starting at $4.99 per month. Flex asks for nothing beyond the download.

Flex ships an update every 3 months, YPM every 4 days. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Flex | YPM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Size | 23 MB | 47 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [sean ELLISON](https://appshunter.io/developer/1471381369) | [Chun Kin Lau](https://appshunter.io/developer/1474532526) |

## What reviewers say

### Flex

[App page](https://appshunter.io/ios/app/flex-ability-concepts/id6478976363)

**Features:** macOS Compatibility

**In-app purchases:** none


### YPM

[App page](https://appshunter.io/ios/app/ypm/id6749611409)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription - Basic | $4.99 | per month |
| Subscription - Fever | $9.99 | per month |
| Subscription - Master | $19.99 | per month |
| 40 Tokens | $3.99 | one-time |
| 120 Tokens | $8.99 | one-time |


## Frequently asked questions

### Is Flex free?

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

### Is YPM free?

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

### Do Flex or YPM have ads?

Neither Flex nor YPM shows ads.

### Which is updated more often, Flex or YPM?

Flex ships an update every 3 months, and YPM every 4 days. Most recently, Flex was updated on October 27, 2026 and YPM on October 28, 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.*