# Simple Memo vs NULL Memo

The clearest difference is ads: NULL Memo at none against Simple Memo's shown. NULL Memo also leads on update cadence (daily vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Simple Memo sells 1 one-off in-app purchase and NULL Memo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Simple Memo ships an update every 2 months, NULL Memo daily. The most recent releases landed on October 16, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Simple Memo | NULL Memo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Daily** |
| Size | 4 MB | 60 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sota Yamamoto](https://appshunter.io/developer/1811232130) | [Aaron Chan](https://appshunter.io/developer/1888707957) |

## What reviewers say

### Simple Memo

[App page](https://appshunter.io/ios/app/simple-memo-checklist/id6752403531)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.49 | one-time |


### NULL Memo

[App page](https://appshunter.io/ios/app/null-memo-ideas-notes-lists/id6761292505)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NULL Memo Pro | $2.99 | one-time |


## Frequently asked questions

### Is Simple Memo free?

Simple Memo is free to download, with in-app purchases available.

### Is NULL Memo free?

NULL Memo is free to download, with in-app purchases available.

### Do Simple Memo or NULL Memo have ads?

Simple Memo shows ads; NULL Memo does not.

### Which is updated more often, Simple Memo or NULL Memo?

Simple Memo ships an update every 2 months, and NULL Memo daily. Most recently, Simple Memo was updated on October 16, 2026 and NULL Memo 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.*