# 診断 for ダンダダン vs Calc

The clearest difference is in-app purchases: 診断 for ダンダダン at none against Calc's 11. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Calc sells 11 one-off in-app purchases. 診断 for ダンダダン asks for nothing beyond the download.

診断 for ダンダダン ships an update every 5 days, Calc weekly. The most recent releases landed on October 10, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 診断 for ダンダダン | Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (42 ratings)](https://appshunter.io/ios/app/calc-desktop-mate-widgets/id6782669667/reviews)** |
| Number of ratings | — | **42** |
| Positive reviews | — | 78.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 37 MB | 156 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [takamoto sakai](https://appshunter.io/developer/1896195459) | [インフィニットループ](https://appshunter.io/developer/507088117) |

## What reviewers say

### 診断 for ダンダダン

[App page](https://appshunter.io/ios/app/for-8/id6768403467)

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

**In-app purchases:** none


### Calc

[App page](https://appshunter.io/ios/app/calc-desktop-mate-widgets/id6782669667)

This app adds a fun, interactive calculator experience with cute character reactions and customizable designs. It also features a unique 'Performance Mode' for playing music and hidden 'SP Answer Actions' for special character responses.

**Highlights:** Cute character reactions with button presses, Customizable calculator themes, Performance Mode for music playback, Hidden SP Answer Actions, Paid character DLCs available, Voice lines for each character

**Features:** Family Sharing, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kasane Teto | $2.99 | one-time |
| Zundamon | $2.99 | one-time |
| Koharu Rikka | $2.99 | one-time |
| Natsuki Karin | $2.99 | one-time |
| Hanakuma Chifuyu | $2.99 | one-time |
| Additional Character MEIKO | $2.99 | one-time |
| Additional Character KAITO | $2.99 | one-time |
| Additional Character Kagamine Rin | $2.99 | one-time |
| Additional Character Kagamine Len | $2.99 | one-time |
| Additional Character Megurine Luka | $2.99 | one-time |
| Additional Character Hatsune Miku | $2.99 | one-time |


## Frequently asked questions

### Is 診断 for ダンダダン free?

診断 for ダンダダン is free to download, with no in-app purchases.

### Is Calc free?

Calc is free to download, with in-app purchases available.

### Do 診断 for ダンダダン or Calc have ads?

Neither 診断 for ダンダダン nor Calc shows ads.

### Which is updated more often, 診断 for ダンダダン or Calc?

診断 for ダンダダン ships an update every 5 days, and Calc weekly. Most recently, 診断 for ダンダダン was updated on October 10, 2026 and Calc on October 18, 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.*