# Memo Online vs ETDA Validation

The clearest difference is update cadence: ETDA Validation at daily against Memo Online's every 6 weeks. ETDA Validation also leads on iOS requirement (12.4 vs 18.0). 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.

Memo Online ships an update every 6 weeks, ETDA Validation daily. The most recent releases landed on October 5, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Memo Online | ETDA Validation |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Daily** |
| Size | 17 MB | 26 MB |
| Requires iOS | 18.0 | **12.4** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [AD Venture Public Company Limited](https://appshunter.io/developer/416967837) | [Electronic Transactions Development Agency (Public Organization)](https://appshunter.io/developer/1162512182) |

## What reviewers say

### Memo Online

[App page](https://appshunter.io/ios/app/memo-online/id1342094291)

**Features:** macOS Compatibility

**In-app purchases:** none


### ETDA Validation

[App page](https://appshunter.io/ios/app/etda-validation/id1669680709)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Memo Online free?

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

### Is ETDA Validation free?

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

### Do Memo Online or ETDA Validation have ads?

Neither Memo Online nor ETDA Validation shows ads.

### Which is updated more often, Memo Online or ETDA Validation?

Memo Online ships an update every 6 weeks, and ETDA Validation daily. Most recently, Memo Online was updated on October 5, 2026 and ETDA Validation on September 29, 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.*