# LetDialog vs Luma AI Assistant

The clearest difference is in-app purchases: LetDialog at none against Luma AI Assistant's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Luma AI Assistant sells 1 in-app purchase, starting at $4.99 per month. LetDialog asks for nothing beyond the download.

LetDialog ships an update weekly, Luma AI Assistant every 5 days. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | LetDialog | Luma AI Assistant |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Size | 44 MB | 23 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [FirstAgenda A/S](https://appshunter.io/developer/1215633829) | [Nariman Abu Elhawa](https://appshunter.io/developer/6783394675) |

## What reviewers say

### LetDialog

[App page](https://appshunter.io/ios/app/letdialog/id1669285665)

**In-app purchases:** none


### Luma AI Assistant

[App page](https://appshunter.io/ios/app/luma-ai-assistant/id6786483305)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Luma Pro | $4.99 | per month |


## Frequently asked questions

### Is LetDialog free?

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

### Is Luma AI Assistant free?

Luma AI Assistant is free to download, with in-app purchases available.

### Do LetDialog or Luma AI Assistant have ads?

Neither LetDialog nor Luma AI Assistant shows ads.

### Which is updated more often, LetDialog or Luma AI Assistant?

LetDialog ships an update weekly, and Luma AI Assistant every 5 days. Most recently, LetDialog was updated on October 24, 2026 and Luma AI Assistant on October 9, 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.*