# ずんだボイス2 vs Calc

The clearest difference is rating: ずんだボイス2 at 4.8 against Calc's 4.2. Calc's advantage is ads (none vs shown) and update cadence (weekly vs every 2 weeks). On price, review sentiment, in-app purchases and monetization model there is nothing between them.

Both are free to download. ずんだボイス2 sells 3 in-app purchases, starting at $0.99 per month and Calc sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ずんだボイス2 holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 13 and 42 respectively. Written reviews complicate that: 73% of ずんだボイス2's written reviews are positive against 78% of Calc's, so the app with the better star average is not the one people write more warmly about.

ずんだボイス2 ships an update every 2 weeks, Calc weekly. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ずんだボイス2 | Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13 ratings)](https://appshunter.io/ios/app/2/id6741562669/reviews)** | [4.2 (42 ratings)](https://appshunter.io/ios/app/calc-desktop-mate-widgets/id6782669667/reviews) |
| Number of ratings | 13 | **42** |
| Positive reviews | 73.3% of reviews | **78.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 262 MB | 156 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Toraichi Igarashi](https://appshunter.io/developer/1704800739) | [インフィニットループ](https://appshunter.io/developer/507088117) |

## What reviewers say

### ずんだボイス2

[App page](https://appshunter.io/ios/app/2/id6741562669)

This app allows users to generate lip-sync videos using custom characters and voice. It offers advanced customization for voice, speed, and tone, with both online and offline processing options. Users can save, edit, and share their creations.

**Highlights:** Lip-sync video generation, Custom character support, Advanced voice customization, Online and offline processing, Speech synthesis, Audio saving and sharing

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| subscription | $0.99 | per month |
| 年額 | $9.99 | per year |
| One-time Puechase | $11.99 | one-time |


### 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 (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 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 ずんだボイス2 free?

ずんだボイス2 is free to download, with in-app purchases available.

### Is Calc free?

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

### Which has better reviews, ずんだボイス2 or Calc?

ずんだボイス2 is rated higher. ずんだボイス2 averages 4.8 out of 5 from 13 ratings, while Calc averages 4.2 from 42 ratings.

### Do ずんだボイス2 or Calc have ads?

ずんだボイス2 shows ads; Calc does not.

### Which is updated more often, ずんだボイス2 or Calc?

ずんだボイス2 ships an update every 2 weeks, and Calc weekly. Most recently, ずんだボイス2 was updated on October 13, 2026 and Calc on October 15, 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.*