# 极简待办 vs NULL Memo

The clearest difference is in-app purchases: 极简待办 at none against NULL Memo's 1. NULL Memo's advantage is ads (none vs shown) and update cadence (daily vs every 5 days). On price, device support and iOS requirement there is nothing between them.

Both are free to download. NULL Memo sells 1 one-off in-app purchase. 极简待办 asks for nothing beyond the download.

极简待办 ships an update every 5 days, NULL Memo daily. The most recent releases landed on October 7, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 极简待办 | NULL Memo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Daily** |
| Size | 15 MB | 60 MB |
| Requires iOS | **16** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [燕梅 高](https://appshunter.io/developer/1860144880) | [Aaron Chan](https://appshunter.io/developer/1888707957) |

## What reviewers say

### 极简待办

[App page](https://appshunter.io/ios/app/id6758336720)

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

**In-app purchases:** none


### 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 极简待办 free?

极简待办 is free to download, with no in-app purchases.

### Is NULL Memo free?

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

### Do 极简待办 or NULL Memo have ads?

极简待办 shows ads; NULL Memo does not.

### Which is updated more often, 极简待办 or NULL Memo?

极简待办 ships an update every 5 days, and NULL Memo daily. Most recently, 极简待办 was updated on October 7, 2026 and NULL Memo on October 17, 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.*