# PiMemory vs Pi Sequence

The clearest difference is in-app purchases: PiMemory at none against Pi Sequence's 1. PiMemory also leads on update cadence (fortnightly vs every 3 months). Pi Sequence's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

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

PiMemory ships an update fortnightly, Pi Sequence every 3 months. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | PiMemory | Pi Sequence |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 months |
| Size | 11 MB | 29 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Younghan Kim](https://appshunter.io/developer/1859100256) | [晓灵 潘](https://appshunter.io/developer/6781908128) |

## What reviewers say

### PiMemory

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Pi Sequence

[App page](https://appshunter.io/ios/app/pi-sequence-memorize-pi/id6783736734)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro | $3.99 | one-time |


## Frequently asked questions

### Is PiMemory free?

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

### Is Pi Sequence free?

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

### Do PiMemory or Pi Sequence have ads?

PiMemory shows ads; Pi Sequence does not.

### Which is updated more often, PiMemory or Pi Sequence?

PiMemory ships an update fortnightly, and Pi Sequence every 3 months. Most recently, PiMemory was updated on November 9, 2026 and Pi Sequence on November 5, 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.*