# Plain MEMO vs Zero Password

The clearest difference is update cadence: Plain MEMO at every 6 days against Zero Password's every 15 months. Plain MEMO also leads on iOS requirement (12.0 vs 16.6). 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.

Plain MEMO ships an update every 6 days, Zero Password every 15 months. The most recent releases landed on May 23, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Plain MEMO | Zero Password |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 15 months |
| Size | 100 MB | 147 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hyobeom Han](https://appshunter.io/developer/1739693153) | [Li Wei](https://appshunter.io/developer/1794714380) |

## What reviewers say

### Plain MEMO

[App page](https://appshunter.io/ios/app/plain-memo/id6504782512)

**Features:** macOS Compatibility

**In-app purchases:** none


### Zero Password

[App page](https://appshunter.io/ios/app/zero-password/id6741751251)

**In-app purchases:** none


## Frequently asked questions

### Is Plain MEMO free?

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

### Is Zero Password free?

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

### Do Plain MEMO or Zero Password have ads?

Neither Plain MEMO nor Zero Password shows ads.

### Which is updated more often, Plain MEMO or Zero Password?

Plain MEMO ships an update every 6 days, and Zero Password every 15 months. Most recently, Plain MEMO was updated on May 23, 2026 and Zero Password on September 10, 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.*