# MiaoPiano vs Calculator Plus

The clearest difference is in-app purchases: Calculator Plus at none against MiaoPiano's 3. Calculator Plus also leads on update cadence (weekly vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. MiaoPiano sells 3 in-app purchases, starting at $2.99 per month. Calculator Plus asks for nothing beyond the download.

MiaoPiano ships an update every 3 weeks, Calculator Plus weekly. The most recent releases landed on September 15, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | MiaoPiano | Calculator Plus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 99 MB | 14 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hoang Viet](https://appshunter.io/developer/1752353160) | [Deep Jerajbhai Davara](https://appshunter.io/developer/1683267123) |

## What reviewers say

### MiaoPiano

[App page](https://appshunter.io/ios/app/miaopiano/id6504453281)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MiaoPiano 1 month subscription | $2.99 | per month |
| MiaoPiano 1 year subscription | $29.99 | per year |
| Life Time Access | $99.99 | one-time |


### Calculator Plus

[App page](https://appshunter.io/ios/app/calculator-plus-multicalc/id6738636098)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MiaoPiano free?

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

### Is Calculator Plus free?

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

### Do MiaoPiano or Calculator Plus have ads?

Neither MiaoPiano nor Calculator Plus shows ads.

### Which is updated more often, MiaoPiano or Calculator Plus?

MiaoPiano ships an update every 3 weeks, and Calculator Plus weekly. Most recently, MiaoPiano was updated on September 15, 2026 and Calculator Plus on September 11, 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.*