# iOTAA vs LumiDoc

The clearest difference is rating: iOTAA at 4.4 against LumiDoc's 3.6. iOTAA also leads on in-app purchases (none vs 10) and iOS requirement (13.0 vs 15.0). LumiDoc's advantage is update cadence (every 3 days vs every 24 months) and ratings volume (27 vs 7). On price, ads and device support there is nothing between them.

Both are free to download. LumiDoc sells 10 in-app purchases, starting at $6.99 per 7 days. iOTAA asks for nothing beyond the download.

iOTAA holds the better App Store score, 4.4 against 3.6. Both are backed by a comparable volume of ratings — 7 and 27 respectively.

iOTAA ships an update every 24 months, LumiDoc every 3 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | iOTAA | LumiDoc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/iotaa/id1615759210/reviews)** | [3.6 (27 ratings)](https://appshunter.io/ios/app/lumidocpdf-scanner/id6804972439/reviews) |
| Number of ratings | 7 | **27** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 3 days** |
| Monetization | **Free** | Freemium |
| Size | 205 MB | 40 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Rana Meer Shohel](https://appshunter.io/developer/1615759212) | [Ashlee Heiston](https://appshunter.io/developer/6804972441) |

## What reviewers say

### iOTAA

[App page](https://appshunter.io/ios/app/iotaa/id1615759210)

Manage IoT and AI-powered energy-saving solutions remotely from your smart device. This app offers sophisticated tools for homes, buildings, industries, agriculture, and healthcare facilities to achieve zero-carbon targets.

**Highlights:** Remote management of energy solutions, IoT and AI-based efficiency, Solutions for homes and buildings, Industrial and agricultural applications, Healthcare facility management, Zero-carbon target achievement

**Features:** macOS Compatibility

**In-app purchases:** none


### LumiDoc

[App page](https://appshunter.io/ios/app/lumidocpdf-scanner/id6804972439)

Transform your iPhone into a powerful document scanner and editor. Convert files to PDF, recognize text with OCR, fill and sign forms, and organize your paperwork efficiently.

**Highlights:** Portable document scanner, File to PDF conversion, OCR text recognition, PDF editing and annotation, Form filling and digital signatures, Document organization and sharing

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| lumiDocVip | $6.99 | per 7 days |
| LumiDocVip | $9.99 | per 7 days |
| LumiDoc:PDF Scanner | $9.99 | per 7 days |
| LumiDocVIP | $12.99 | per 7 days |
| LumiDocVip | $14.99 | per 7 days |
| LumiDocVip | $19.99 | per 7 days |
| LumiDoc:PDF Scanner | $39.99 | per year |
| LumiDocVip | $49.99 | per year |
| LumiDocVip | $59.99 | per year |
| LumiDoc:PDF Scanner | $89.99 | per year |


## Frequently asked questions

### Is iOTAA free?

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

### Is LumiDoc free?

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

### Which has better reviews, iOTAA or LumiDoc?

iOTAA is rated higher. iOTAA averages 4.4 out of 5 from 7 ratings, while LumiDoc averages 3.6 from 27 ratings.

### Do iOTAA or LumiDoc have ads?

Neither iOTAA nor LumiDoc shows ads.

### Which is updated more often, iOTAA or LumiDoc?

iOTAA ships an update every 24 months, and LumiDoc every 3 days. Most recently, iOTAA was updated on November 3, 2026 and LumiDoc on November 6, 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.*