# COR A Teacher vs Tools SEED

The clearest difference is update cadence: Tools SEED at every 3 days against COR A Teacher's every 3 weeks. COR A Teacher's advantage is iOS requirement (12.4 vs 15.0). 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.

COR A Teacher ships an update every 3 weeks, Tools SEED every 3 days. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | COR A Teacher | Tools SEED |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 50 MB | 17 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [HighScope Educational Research Foundation](https://appshunter.io/developer/1421389000) | [Tools of the Mind](https://appshunter.io/developer/1633291513) |

## What reviewers say

### COR A Teacher

[App page](https://appshunter.io/ios/app/cor-a-teacher/id6462117925)

**Features:** macOS Compatibility

**In-app purchases:** none


### Tools SEED

[App page](https://appshunter.io/ios/app/tools-seed/id6550925162)

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

**In-app purchases:** none


## Frequently asked questions

### Is COR A Teacher free?

COR A Teacher is free to download, with no in-app purchases.

### Is Tools SEED free?

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

### Do COR A Teacher or Tools SEED have ads?

Neither COR A Teacher nor Tools SEED shows ads.

### Which is updated more often, COR A Teacher or Tools SEED?

COR A Teacher ships an update every 3 weeks, and Tools SEED every 3 days. Most recently, COR A Teacher was updated on October 9, 2026 and Tools SEED on October 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.*