# 何のマーク？ vs AI Decision Maker

The clearest difference is in-app purchases: 何のマーク？ at none against AI Decision Maker's 3. 何のマーク？ also leads on device support (3 vs 1) and iOS requirement (12.0 vs 17.0). AI Decision Maker's advantage is ads (none vs shown) and update cadence (every 3 months vs every 40 months). On price there is nothing between them.

Both are free to download. AI Decision Maker sells 3 in-app purchases, starting at $3.99 per 7 days. 何のマーク？ asks for nothing beyond the download.

何のマーク？ ships an update every 40 months, AI Decision Maker every 3 months. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 何のマーク？ | AI Decision Maker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 87.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 40 months | **Every 3 months** |
| Monetization | — | Subscription |
| Size | 33 MB | 39 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Rumi Igarashi](https://appshunter.io/developer/1187114087) | [Sait Cihaner](https://appshunter.io/developer/1773418593) |

## What reviewers say

### 何のマーク？

[App page](https://appshunter.io/ios/app/id1495291491)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI Decision Maker

[App page](https://appshunter.io/ios/app/ai-decision-maker-decide-now/id6740045672)

This AI-powered assistant helps you make everyday and significant decisions with smart, personalized suggestions. It analyzes your preferences and circumstances to offer optimized choices, simplifying your life and reducing stress.

**Highlights:** AI-powered insights and recommendations, Intuitive and easy-to-use interface, Scenario-based decision assistance, Real-time decision support, Personalized suggestions for daily choices

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $3.99 | per 7 days |
| Monthly Premium | $9.99 | per month |
| Annual Premium | $49.99 | per year |


## Frequently asked questions

### Is 何のマーク？ free?

何のマーク？ is free to download, with no in-app purchases.

### Is AI Decision Maker free?

AI Decision Maker is free to download, with in-app purchases available.

### Do 何のマーク？ or AI Decision Maker have ads?

何のマーク？ shows ads; AI Decision Maker does not.

### Which is updated more often, 何のマーク？ or AI Decision Maker?

何のマーク？ ships an update every 40 months, and AI Decision Maker every 3 months. Most recently, 何のマーク？ was updated on October 25, 2026 and AI Decision Maker on October 30, 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.*