# DeciderAI vs Diff Checker

The clearest difference is update cadence: DeciderAI at every 4 days against Diff Checker's fortnightly. Diff Checker's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 15.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. DeciderAI sells 4 one-off in-app purchases and Diff Checker sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

DeciderAI ships an update every 4 days, Diff Checker fortnightly. Both last shipped on September 30, 2026.

## The numbers

| Metric | DeciderAI | Diff Checker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Size | 58 MB | 79 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Sedat Kavak](https://appshunter.io/developer/1669481736) | [Edusoft Limited](https://appshunter.io/developer/1836364875) |

## What reviewers say

### DeciderAI

[App page](https://appshunter.io/ios/app/deciderai-decision-maker/id6752483802)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Token Pack | $2.99 | one-time |
| Medium Token Pack | $7.99 | one-time |
| Large Token Pack | $14.99 | one-time |
| Premium Token Pack | $24.99 | one-time |


### Diff Checker

[App page](https://appshunter.io/ios/app/diff-checker-compare-text/id6753902567)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription Monthly | $7.99 | per month |
| Premium Subscription Yearly | $49.99 | per year |


## Frequently asked questions

### Is DeciderAI free?

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

### Is Diff Checker free?

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

### Do DeciderAI or Diff Checker have ads?

Neither DeciderAI nor Diff Checker shows ads.

### Which is updated more often, DeciderAI or Diff Checker?

DeciderAI ships an update every 4 days, and Diff Checker fortnightly. Most recently, DeciderAI was updated on September 30, 2026 and Diff Checker on September 30, 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.*