# MemTrainer vs rare numbers

The clearest difference is update cadence: rare numbers at every 4 months against MemTrainer's every 57 months. MemTrainer's advantage is iOS requirement (11.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

MemTrainer ships an update every 57 months, rare numbers every 4 months. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | MemTrainer | rare numbers |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 57 months | **Every 4 months** |
| Size | 8 MB | 13 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [POK](https://appshunter.io/developer/357275870) | [Kevin Griffing](https://appshunter.io/developer/1772253467) |

## What reviewers say

### MemTrainer

[App page](https://appshunter.io/ios/app/memtrainer/id506423958)

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

**In-app purchases:** none


### rare numbers

[App page](https://appshunter.io/ios/app/rare-numbers/id6744262836)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MemTrainer free?

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

### Is rare numbers free?

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

### Do MemTrainer or rare numbers have ads?

Both MemTrainer and rare numbers show ads.

### Which is updated more often, MemTrainer or rare numbers?

MemTrainer ships an update every 57 months, and rare numbers every 4 months. Most recently, MemTrainer was updated on October 4, 2026 and rare numbers on October 1, 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.*