# DiditoX vs Think First

The clearest difference is in-app purchases: DiditoX at none against Think First's 2. DiditoX also leads on iOS requirement (15.4 vs 17.0). Think First's advantage is ads (none vs shown) and update cadence (every 4 days vs every 3 weeks). On price and device support there is nothing between them.

Both are free to download. Think First sells 2 in-app purchases, starting at $2.99 per month. DiditoX asks for nothing beyond the download.

DiditoX ships an update every 3 weeks, Think First every 4 days. The most recent releases landed on September 28, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | DiditoX | Think First |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 37 MB | 6 MB |
| Requires iOS | **15.4** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sooji Lee](https://appshunter.io/developer/1714712452) | [HBJ Solutions](https://appshunter.io/developer/6788348274) |

## What reviewers say

### DiditoX

[App page](https://appshunter.io/ios/app/diditox/id6748024311)

**Features:** macOS Compatibility

**In-app purchases:** none


### Think First

[App page](https://appshunter.io/ios/app/think-first-screen-time/id6789266589)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Think First Premium | $2.99 | per month |
| Think First Premium | $3.99 | one-time |


## Frequently asked questions

### Is DiditoX free?

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

### Is Think First free?

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

### Do DiditoX or Think First have ads?

DiditoX shows ads; Think First does not.

### Which is updated more often, DiditoX or Think First?

DiditoX ships an update every 3 weeks, and Think First every 4 days. Most recently, DiditoX was updated on September 28, 2026 and Think First on September 27, 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.*