# Bluetooth Data Logger vs DQR

The clearest difference is update cadence: DQR at every 2 weeks against Bluetooth Data Logger's every 58 months. Bluetooth Data Logger's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Bluetooth Data Logger ships an update every 58 months, DQR every 2 weeks. The most recent releases landed on October 3, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Bluetooth Data Logger | DQR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dqr/id6752385545/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 58 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 41 MB | 52 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TTS Group Limited](https://appshunter.io/developer/500131642) | [EEDI LTD](https://appshunter.io/developer/1169412070) |

## What reviewers say

### Bluetooth Data Logger

[App page](https://appshunter.io/ios/app/bluetooth-data-logger/id1465251278)

This educational tool allows users to collect data using five integrated sensors on compatible tablets. It supports scientific investigations and is suitable for a wide range of age groups.

**Highlights:** Five integrated sensors, Data logging capabilities, Tablet compatibility, Scientific investigations, Educational tool

**Features:** macOS Compatibility

**In-app purchases:** none


### DQR

[App page](https://appshunter.io/ios/app/dqr/id6752385545)

This platform allows educators to create and administer interactive quizzes using printable QR codes. Teachers can manage classes, access a question bank, and scan student responses in real-time for instant results and analytics.

**Highlights:** Classroom management, Quiz item bank with images, Live QR code scanning, Real-time assessment analytics, Printable student QR codes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bluetooth Data Logger free?

Bluetooth Data Logger is free to download, with no in-app purchases.

### Is DQR free?

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

### Do Bluetooth Data Logger or DQR have ads?

Neither Bluetooth Data Logger nor DQR shows ads.

### Which is updated more often, Bluetooth Data Logger or DQR?

Bluetooth Data Logger ships an update every 58 months, and DQR every 2 weeks. Most recently, Bluetooth Data Logger was updated on October 3, 2026 and DQR on October 8, 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.*