# Smart Energy Meter vs QR Code Reader & Scanner ++

The clearest difference is in-app purchases: Smart Energy Meter at none against QR Code Reader & Scanner ++'s 5. Smart Energy Meter also leads on iOS requirement (13.0 vs 15.5). QR Code Reader & Scanner ++'s advantage is update cadence (every 3 weeks vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. QR Code Reader & Scanner ++ sells 5 in-app purchases, starting at $4.99 per 7 days. Smart Energy Meter asks for nothing beyond the download.

Smart Energy Meter ships an update every 4 months, QR Code Reader & Scanner ++ every 3 weeks. The most recent releases landed on September 14, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Smart Energy Meter | QR Code Reader & Scanner ++ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 37 MB | 66 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Smart Sensor Design - Empresa Paranaense de Sensores LTDA](https://appshunter.io/developer/1737767839) | [Michael Clark](https://appshunter.io/developer/1870242208) |

## What reviewers say

### Smart Energy Meter

[App page](https://appshunter.io/ios/app/smart-energy-meter/id6503910255)

**Features:** macOS Compatibility

**In-app purchases:** none


### QR Code Reader & Scanner ++

[App page](https://appshunter.io/ios/app/qr-code-reader-and-scanner-plus-plus/id6758010291)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Weekly | $4.99 | per 7 days |
| Monthly | $12.99 | per month |
| Yearly | $39.99 | per year |
| Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is Smart Energy Meter free?

Smart Energy Meter is free to download, with no in-app purchases.

### Is QR Code Reader & Scanner ++ free?

QR Code Reader & Scanner ++ is free to download, with in-app purchases available.

### Do Smart Energy Meter or QR Code Reader & Scanner ++ have ads?

Neither Smart Energy Meter nor QR Code Reader & Scanner ++ shows ads.

### Which is updated more often, Smart Energy Meter or QR Code Reader & Scanner ++?

Smart Energy Meter ships an update every 4 months, and QR Code Reader & Scanner ++ every 3 weeks. Most recently, Smart Energy Meter was updated on September 14, 2026 and QR Code Reader & Scanner ++ on September 20, 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.*