# IDT Data Logger vs Mollama

The clearest difference is rating: IDT Data Logger at 4.0 against Mollama's 3.4. IDT Data Logger also leads on iOS requirement (12.0 vs 17.0). Mollama's advantage is update cadence (every 2 weeks vs every 11 months) and ratings volume (36 vs 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.

IDT Data Logger holds the better App Store score, 4.0 against 3.4. That said, the two scores are not equally well evidenced: Mollama has 36 ratings behind it against 1, so its average is the more settled of the two.

IDT Data Logger ships an update every 11 months, Mollama every 2 weeks. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | IDT Data Logger | Mollama |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/idt-data-logger/id1555614905/reviews)** | [3.4 (36 ratings)](https://appshunter.io/ios/app/mollama/id6736948278/reviews) |
| Number of ratings | 1 | **36** |
| Positive reviews | — | 41.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 8 MB | 296 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Instruments & Data Tools Pty Ltd](https://appshunter.io/developer/1477164406) | [飞 杨](https://appshunter.io/developer/1493121831) |

## What reviewers say

### IDT Data Logger

[App page](https://appshunter.io/ios/app/idt-data-logger/id1555614905)

Manually record data points using user-defined labels and NFC tags. Capture tag information like number and description alongside your collected data. Share your recorded information across devices via AirDrop.

**Highlights:** Manual data recording, User-defined labels, NFC tag integration, Capture tag number and description, Data sharing via AirDrop

**Features:** macOS Compatibility

**In-app purchases:** none


### Mollama

[App page](https://appshunter.io/ios/app/mollama/id6736948278)

This AI companion runs entirely on your device, ensuring complete privacy and security. It offers intelligent conversations, creative support, and problem-solving without sending your data to external servers. Enjoy offline functionality and real-time interaction with various AI models.

**Highlights:** Fully on-device processing, Zero data transmission, Offline functionality, Real-time interaction, Multi-model support, Contextual understanding

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great for local models
- 👍 Native MLX support
- 👍 Simple interface
- 👍 Good for hobbyists
- 👍 Works with Llama

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Buggy and error-prone
- 🐛 Unusable with larger models
- 🐛 Download issues
- 🐛 Slow downloads

**Reported bugs**

- App crashes on sending messages with certain models
- Tokenizer metadata errors in offline mode
- Unsupported model type errors (e.g., Gemma, Qwen3)
- Models not loading when selected
- App freezes phone during model download

**Requested features**

- Add notification permission for background downloads
- Show LLM name for each answer
- Support for Qwen3 family of models
- Ability to use any HuggingFace MLX models
- Allow user-defined model folders


## Frequently asked questions

### Is IDT Data Logger free?

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

### Is Mollama free?

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

### Which has better reviews, IDT Data Logger or Mollama?

IDT Data Logger is rated higher. IDT Data Logger averages 4.0 out of 5 from 1 ratings, while Mollama averages 3.4 from 36 ratings.

### Do IDT Data Logger or Mollama have ads?

Neither IDT Data Logger nor Mollama shows ads.

### Which is updated more often, IDT Data Logger or Mollama?

IDT Data Logger ships an update every 11 months, and Mollama every 2 weeks. Most recently, IDT Data Logger was updated on October 29, 2026 and Mollama on October 30, 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.*