# MFA vs 江戸ものさし

The clearest difference is ads: MFA at none against 江戸ものさし's shown. MFA also leads on update cadence (fortnightly vs every 6 weeks) and iOS requirement (9.3 vs 17.1). On price, 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.

MFA ships an update fortnightly, 江戸ものさし every 6 weeks. The most recent releases landed on September 8, 2026 and May 19, 2026 respectively.

## The numbers

| Metric | MFA | 江戸ものさし |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Size | 29 MB | 7 MB |
| Requires iOS | **9.3** | 17.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Isao Uchida](https://appshunter.io/developer/1341625060) | [Yusuke Kiyoi](https://appshunter.io/developer/1670887880) |

## What reviewers say

### MFA

[App page](https://appshunter.io/ios/app/mfa/id1341625151)

**In-app purchases:** none


### 江戸ものさし

[App page](https://appshunter.io/ios/app/id6742149184)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MFA free?

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

### Is 江戸ものさし free?

江戸ものさし is free to download, with no in-app purchases.

### Do MFA or 江戸ものさし have ads?

江戸ものさし shows ads; MFA does not.

### Which is updated more often, MFA or 江戸ものさし?

MFA ships an update fortnightly, and 江戸ものさし every 6 weeks. Most recently, MFA was updated on September 8, 2026 and 江戸ものさし on May 19, 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.*