# Number Formation vs EdChanger Pro

The clearest difference is update cadence: EdChanger Pro at every 2 months against Number Formation's every 36 months. Number Formation's advantage is iOS requirement (11.0 vs 17.6). 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.

Number Formation ships an update every 36 months, EdChanger Pro every 2 months. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Number Formation | EdChanger Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/edchanger-pro/id6741165826/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 2 months** |
| Monetization | — | Paid |
| Size | 13 MB | 3 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Yellow Door Ltd](https://appshunter.io/developer/992076525) | [Jaime Bertran](https://appshunter.io/developer/1781097032) |

## What reviewers say

### Number Formation

[App page](https://appshunter.io/ios/app/number-formation-us/id1292615040)

**Features:** macOS Compatibility

**In-app purchases:** none


### EdChanger Pro

[App page](https://appshunter.io/ios/app/edchanger-pro/id6741165826)

This app offers a data-driven system for classroom observation and teacher development. It tracks student engagement in real-time, provides instant analytics, and offers a library of professional development resources. Designed to improve teaching practices through observation and research.

**Highlights:** Real-time student engagement tracking, Multiple observation categories, Instant analytics and engagement ratios, Professional development resources, Customizable observation routines, Teaching best practices library

**In-app purchases:** none


## Frequently asked questions

### Is Number Formation free?

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

### Is EdChanger Pro free?

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

### Do Number Formation or EdChanger Pro have ads?

Neither Number Formation nor EdChanger Pro shows ads.

### Which is updated more often, Number Formation or EdChanger Pro?

Number Formation ships an update every 36 months, and EdChanger Pro every 2 months. Most recently, Number Formation was updated on October 9, 2026 and EdChanger Pro on October 7, 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.*