# Three vs ObjectiveX

The clearest difference is in-app purchases: ObjectiveX at none against Three's 1. ObjectiveX also leads on iOS requirement (15.1 vs 18.2). On price, ads and device support there is nothing between them.

Both are free to download. Three sells 1 one-off in-app purchase. ObjectiveX asks for nothing beyond the download.

## The numbers

| Metric | Three | ObjectiveX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 days | — |
| Size | 2 MB | 27 MB |
| Requires iOS | 18.2 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Schmidt](https://appshunter.io/developer/1816451541) | [Hyeongsik IM](https://appshunter.io/developer/1829851671) |

## 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 |


### ObjectiveX

[App page](https://appshunter.io/ios/app/objectivex/id6752623692)

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

**In-app purchases:** none


## Frequently asked questions

### Is Three free?

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

### Is ObjectiveX free?

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

### Do Three or ObjectiveX have ads?

Neither Three nor ObjectiveX shows ads.

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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.*