# ClassFlex vs Numbi

The clearest difference is ads: Numbi at none against ClassFlex's shown. On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 4, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | ClassFlex | Numbi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Size | 52 MB | 74 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [3-101-938358 S.A.](https://appshunter.io/developer/1824289802) | [Jeffry Arias](https://appshunter.io/developer/6796137649) |

## What reviewers say

### ClassFlex

[App page](https://appshunter.io/ios/app/classflex/id6748094476)

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

**In-app purchases:** none


### Numbi

[App page](https://appshunter.io/ios/app/numbi/id6796137647)

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

**In-app purchases:** none


## Frequently asked questions

### Is ClassFlex free?

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

### Is Numbi free?

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

### Do ClassFlex or Numbi have ads?

ClassFlex shows ads; Numbi does not.

### Which is updated more often, ClassFlex or Numbi?

ClassFlex ships an update every 2 weeks, and Numbi every 2 weeks. Most recently, ClassFlex was updated on October 4, 2026 and Numbi on October 14, 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.*