# First Thingy vs One Thing

First Thingy and One Thing are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | First Thingy | One Thing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 36 MB | 3 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ANTON KENT GUNNAR KARLSSON](https://appshunter.io/developer/1776913881) | [Nguyen Thi Kim Chung](https://appshunter.io/developer/6774093045) |

## What reviewers say

### First Thingy

[App page](https://appshunter.io/ios/app/first-thingy/id6761781989)

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

**In-app purchases:** none


### One Thing

[App page](https://appshunter.io/ios/app/one-thing-just-one/id6794203328)

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

**In-app purchases:** none


## Frequently asked questions

### Is First Thingy free?

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

### Is One Thing free?

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

### Do First Thingy or One Thing have ads?

Neither First Thingy nor One Thing 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.*