# QrCode vs Blue

The clearest difference is in-app purchases: QrCode at none against Blue's 8. QrCode also leads on iOS requirement (12.0 vs 14.0). Blue's advantage is device support. On price there is nothing between them.

Both are free to download. Blue sells 8 in-app purchases, starting at $4.99 per month. QrCode asks for nothing beyond the download.

## The numbers

| Metric | QrCode | Blue |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/blue-upgrade-your-reef-life/id6470936154/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 22 MB | 101 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [CODELOGIC - TECNOLOGIAS DE INFORMACAO, UNIPESSOAL, LDA](https://appshunter.io/developer/1473732529) | [TREND AGENCY COMPANY LIMITED](https://appshunter.io/developer/1714472506) |

## What reviewers say

### QrCode

[App page](https://appshunter.io/ios/app/qrcode-reader/id6470482372)

**In-app purchases:** none


### Blue

[App page](https://appshunter.io/ios/app/blue-upgrade-your-reef-life/id6470936154)

Manage and grow your marine reef aquarium with this comprehensive app. Track water parameters, access detailed species information, and connect with a community of enthusiasts. Offers guidance for beginners and opportunities to win prizes.

**Highlights:** Precise water parameter measurement, Comprehensive statistics tracking, Detailed fact sheets for marine life, Beginner guidance sections, Active community forum, Easy aquarium sharing, Monthly giveaways

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $4.99 | per month |
| Yearly subscription | $49.99 | per year |
| Top of the ads list 2 times | $0.99 | one-time |
| Top of the ads list 5 times | $3.99 | one-time |
| Favorite for 2 days | $3.99 | one-time |
| Top of the ads list 10 times | $6.99 | one-time |
| Favorite for 5 days | $7.99 | one-time |
| Favorite for 10 days | $14.99 | one-time |


## Frequently asked questions

### Is QrCode free?

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

### Is Blue free?

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

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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.*