# Three vs ScribeZero

The clearest difference is iOS requirement: ScribeZero at 15.1 against Three's 18.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Three sells 1 one-off in-app purchase and ScribeZero sells 2 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

Three ships an update every 8 days, ScribeZero every 9 days. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Three | ScribeZero |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 9 days |
| Size | 2 MB | 371 MB |
| Requires iOS | 18.2 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Daniel Schmidt](https://appshunter.io/developer/1816451541) | [DILEK HUNER SAFKAN](https://appshunter.io/developer/1827713615) |

## What reviewers say

### Three

[App page](https://appshunter.io/ios/app/three-minimal-to-do-and-planner/id6747890852)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Three Pro (Lifetime) | $3.99 | one-time |


### ScribeZero

[App page](https://appshunter.io/ios/app/scribezero-private-ai-notes/id6760656929)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $19.99 | per month |
| Annual Subscription | $149.99 | per year |


## Frequently asked questions

### Is Three free?

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

### Is ScribeZero free?

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

### Do Three or ScribeZero have ads?

Neither Three nor ScribeZero shows ads.

### Which is updated more often, Three or ScribeZero?

Three ships an update every 8 days, and ScribeZero every 9 days. Most recently, Three was updated on November 8, 2026 and ScribeZero on November 5, 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.*