# MFA vs スマホで左手デバイス

The clearest difference is in-app purchases: MFA at none against スマホで左手デバイス's 1. MFA also leads on ads (none vs shown) and iOS requirement (9.3 vs 12.0). スマホで左手デバイス's advantage is update cadence (weekly vs fortnightly). On price and device support there is nothing between them.

Both are free to download. スマホで左手デバイス sells 1 in-app purchase, starting at $4.99 per month. MFA asks for nothing beyond the download.

MFA ships an update fortnightly, スマホで左手デバイス weekly. The most recent releases landed on September 8, 2026 and August 23, 2026 respectively.

## The numbers

| Metric | MFA | スマホで左手デバイス |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Weekly** |
| Size | 29 MB | 73 MB |
| Requires iOS | **9.3** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Isao Uchida](https://appshunter.io/developer/1341625060) | [Keiichiro Fukuda](https://appshunter.io/developer/1649896037) |

## What reviewers say

### MFA

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

**In-app purchases:** none


### スマホで左手デバイス

[App page](https://appshunter.io/ios/app/id6603719752)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告の削除と機能の追加 | $4.99 | per month |


## Frequently asked questions

### Is MFA free?

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

### Is スマホで左手デバイス free?

スマホで左手デバイス is free to download, with in-app purchases available.

### Do MFA or スマホで左手デバイス have ads?

スマホで左手デバイス shows ads; MFA does not.

### Which is updated more often, MFA or スマホで左手デバイス?

MFA ships an update fortnightly, and スマホで左手デバイス weekly. Most recently, MFA was updated on September 8, 2026 and スマホで左手デバイス on August 23, 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.*