# 录音笔 STT vs Calculator

The clearest difference is in-app purchases: 录音笔 STT at none against Calculator's 3. 录音笔 STT also leads on iOS requirement (9.0 vs 16.0). Calculator's advantage is update cadence (fortnightly vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Calculator sells 3 in-app purchases, starting at $0.99 per month. 录音笔 STT asks for nothing beyond the download.

录音笔 STT ships an update every 4 months, Calculator fortnightly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 录音笔 STT | Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Size | 82 MB | 8 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [深圳市京华信息技术有限公司](https://appshunter.io/developer/964435817) | [深圳宝乐软件有限公司](https://appshunter.io/developer/1773102040) |

## What reviewers say

### 录音笔 STT

[App page](https://appshunter.io/ios/app/stt/id1433450670)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calculator

[App page](https://appshunter.io/ios/app/calculator-edit-equations/id6443911558)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1个月 | $0.99 | per month |
| 1 年 | $1.99 | per year |
| 终身会员 | $2.99 | one-time |


## Frequently asked questions

### Is 录音笔 STT free?

录音笔 STT is free to download, with no in-app purchases.

### Is Calculator free?

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

### Do 录音笔 STT or Calculator have ads?

Neither 录音笔 STT nor Calculator shows ads.

### Which is updated more often, 录音笔 STT or Calculator?

录音笔 STT ships an update every 4 months, and Calculator fortnightly. Most recently, 录音笔 STT was updated on November 2, 2026 and Calculator on November 3, 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.*