# My Prima vs One

The clearest difference is iOS requirement: My Prima at 12.4 against One's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

My Prima ships an update every 2 weeks, One weekly. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | My Prima | One |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Size | 233 MB | 41 MB |
| Requires iOS | **12.4** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Wellifiy Pty Ltd](https://appshunter.io/developer/1544906420) | [Advanced Neuropsychological Treatment Services (ANTS)](https://appshunter.io/developer/1885660155) |

## What reviewers say

### My Prima

[App page](https://appshunter.io/ios/app/my-prima/id6499111213)

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

**In-app purchases:** none


### One

[App page](https://appshunter.io/ios/app/one-word-memory-test/id6760676561)

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

**In-app purchases:** none


## Frequently asked questions

### Is My Prima free?

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

### Is One free?

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

### Do My Prima or One have ads?

Neither My Prima nor One shows ads.

### Which is updated more often, My Prima or One?

My Prima ships an update every 2 weeks, and One weekly. Most recently, My Prima was updated on October 6, 2026 and One on October 7, 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.*