# MDA vs 何日経った？

The clearest difference is price: 何日経った？ at Free against MDA's $4.99. MDA's advantage is update cadence (fortnightly vs every 16 months) and iOS requirement (15.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

何日経った？ is free to download; MDA costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MDA ships an update fortnightly, 何日経った？ every 16 months. The most recent releases landed on September 11, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | MDA | 何日経った？ |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 16 months |
| Size | 39 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tulio Calazans](https://appshunter.io/developer/1506825273) | [KAZUKI KUBO](https://appshunter.io/developer/936625453) |

## What reviewers say

### MDA

[App page](https://appshunter.io/ios/app/mda-my-diary-pro/id6458223921)

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

**In-app purchases:** none


### 何日経った？

[App page](https://appshunter.io/ios/app/id6475248021)

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

**In-app purchases:** none


## Frequently asked questions

### Is MDA free?

MDA costs $4.99, with no in-app purchases.

### Is 何日経った？ free?

何日経った？ is free to download, with no in-app purchases.

### Do MDA or 何日経った？ have ads?

Neither MDA nor 何日経った？ shows ads.

### Which is updated more often, MDA or 何日経った？?

MDA ships an update fortnightly, and 何日経った？ every 16 months. Most recently, MDA was updated on September 11, 2026 and 何日経った？ on September 9, 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.*