# No Problem vs X

The clearest difference is update cadence: No Problem at every 6 days against X's every 2 months. X's advantage is iOS requirement (15.1 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

No Problem ships an update every 6 days, X every 2 months. The most recent releases landed on September 15, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | No Problem | X |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 months |
| Size | 3 MB | 29 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yunqing Fei](https://appshunter.io/developer/1861075124) | [Cognitive Card Games LLC](https://appshunter.io/developer/1843132107) |

## What reviewers say

### No Problem

[App page](https://appshunter.io/ios/app/no-problem-math-practice/id6756510231)

**Features:** macOS Compatibility

**In-app purchases:** none


### X

[App page](https://appshunter.io/ios/app/x-squared-challenge/id6760794467)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is No Problem free?

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

### Is X free?

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

### Do No Problem or X have ads?

Neither No Problem nor X shows ads.

### Which is updated more often, No Problem or X?

No Problem ships an update every 6 days, and X every 2 months. Most recently, No Problem was updated on September 15, 2026 and X on September 24, 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.*