# PiMemory vs Memorize Fast

The clearest difference is in-app purchases: PiMemory at none against Memorize Fast's 1. Memorize Fast's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Memorize Fast sells 1 one-off in-app purchase. PiMemory asks for nothing beyond the download.

PiMemory ships an update fortnightly, Memorize Fast every 9 days. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | PiMemory | Memorize Fast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/memorize-fast-nummnemonic/id6757535911/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 11 MB | 45 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Younghan Kim](https://appshunter.io/developer/1859100256) | [Yevhen Murzik](https://appshunter.io/developer/1533055951) |

## What reviewers say

### PiMemory

[App page](https://appshunter.io/ios/app/pimemory/id6756199880)

**Features:** macOS Compatibility

**In-app purchases:** none


### Memorize Fast

[App page](https://appshunter.io/ios/app/memorize-fast-nummnemonic/id6757535911)

This app uses mnemonic techniques to help you memorize numbers like phone numbers, PINs, and passcodes. It transforms digits into vivid images for natural recall, requiring minimal daily practice. Unlock advanced features with custom mappings.

**Highlights:** Memorize phone numbers and passcodes, Remember long number sequences, Learn Major and PAO systems, Improve recall accuracy, Daily practice under a minute, Create custom number mappings (Pro)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro Access | $4.99 | one-time |


## Frequently asked questions

### Is PiMemory free?

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

### Is Memorize Fast free?

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

### Do PiMemory or Memorize Fast have ads?

PiMemory shows ads; Memorize Fast does not.

### Which is updated more often, PiMemory or Memorize Fast?

PiMemory ships an update fortnightly, and Memorize Fast every 9 days. Most recently, PiMemory was updated on October 17, 2026 and Memorize Fast on October 15, 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.*