# Mr.BarCode vs 租電計算機

The clearest difference is in-app purchases: 租電計算機 at none against Mr.BarCode's 1. 租電計算機 also leads on update cadence (daily vs every 3 weeks). Mr.BarCode's advantage is ads (none vs shown) and iOS requirement (17.6 vs 26.0). On price and device support there is nothing between them.

Both are free to download. Mr.BarCode sells 1 one-off in-app purchase. 租電計算機 asks for nothing beyond the download.

Mr.BarCode ships an update every 3 weeks, 租電計算機 daily. The most recent releases landed on September 8, 2026 and August 21, 2026 respectively.

## The numbers

| Metric | Mr.BarCode | 租電計算機 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 6 MB | 8 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tom Wu](https://appshunter.io/developer/1118759317) | [PU YEN LIN](https://appshunter.io/developer/954160384) |

## What reviewers say

### Mr.BarCode

[App page](https://appshunter.io/ios/app/mrbarcode/id6754281489)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Barcodes | $1.99 | one-time |


### 租電計算機

[App page](https://appshunter.io/ios/app/id6785377913)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mr.BarCode free?

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

### Is 租電計算機 free?

租電計算機 is free to download, with no in-app purchases.

### Do Mr.BarCode or 租電計算機 have ads?

租電計算機 shows ads; Mr.BarCode does not.

### Which is updated more often, Mr.BarCode or 租電計算機?

Mr.BarCode ships an update every 3 weeks, and 租電計算機 daily. Most recently, Mr.BarCode was updated on September 8, 2026 and 租電計算機 on August 21, 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.*