# Lunabot vs iMI

The clearest difference is update cadence: iMI at every 4 days against Lunabot's every 3 weeks. iMI also leads on ratings volume (3 vs 1). Lunabot's advantage is iOS requirement (13.0 vs 18.6). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Lunabot sells 3 in-app purchases, starting at $5.99 per month and iMI sells 5 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Lunabot against 5.0 for iMI. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Lunabot ships an update every 3 weeks, iMI every 4 days. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Lunabot | iMI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/lunabot/id6471145477/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/imi-inference/id6760208856/reviews) |
| Number of ratings | 1 | **3** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Freemium | Freemium |
| Size | 56 MB | 12 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Lesslab](https://appshunter.io/developer/1685096566) | [Michael Kaminski](https://appshunter.io/developer/1870159381) |

## What reviewers say

### Lunabot

[App page](https://appshunter.io/ios/app/lunabot/id6471145477)

This AI assistant helps with complex tasks like chatting, translating, writing, and drawing. It can also process documents like PDFs and Word files, and offers tools for image manipulation and prompt generation to boost work efficiency.

**Highlights:** Advanced AI chat models, Document processing (PDF, Word), AI-powered image generation and editing, Prompt tools for quick use, Translation and writing assistance

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Essential Plan | $5.99 | per month |
| Premium Plan | $9.99 | per month |
| Super Plan | $19.99 | per month |


### iMI

[App page](https://appshunter.io/ios/app/imi-inference/id6760208856)

This AI assistant is designed for manufacturing professionals on the shop floor. It provides answers to technical questions, helps troubleshoot issues, and offers tools for optimizing processes and calculating ROI. Securely store and access your private manufacturing documents.

**Highlights:** AI-powered manufacturing Q&A, G-code optimization, Machining strategy generation, Work instruction drafting, ROI calculator, Private on-device document vault

**Features:** Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ArloInference Starter | $9.99 | per month |
| ArloInference Pro | $19.99 | per month |
| 250 Uses — Project Sprint | $4.99 | one-time |
| 600 Uses — Heavy Week Pack | $9.99 | one-time |
| 1500 Uses — Power User Pack | $19.99 | one-time |


## Frequently asked questions

### Is Lunabot free?

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

### Is iMI free?

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

### Which has better reviews, Lunabot or iMI?

Lunabot and iMI are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Lunabot or iMI have ads?

Neither Lunabot nor iMI shows ads.

### Which is updated more often, Lunabot or iMI?

Lunabot ships an update every 3 weeks, and iMI every 4 days. Most recently, Lunabot was updated on October 17, 2026 and iMI 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.*