# Chat AI. vs Lunar Timer

The clearest difference is ads: Chat AI. at none against Lunar Timer's shown. Chat AI. also leads on iOS requirement (13.0 vs 17.6). Lunar Timer's advantage is update cadence (every 10 days vs every 2 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Chat AI. sells 2 in-app purchases, starting at $7.99 per 7 days and Lunar Timer sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Chat AI. ships an update every 2 months, Lunar Timer every 10 days. The most recent releases landed on September 28, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Chat AI. | Lunar Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (5 ratings)](https://appshunter.io/ios/app/chat-ai/id6471974671/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 48 MB | 21 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aquila Holding srl](https://appshunter.io/developer/1792819795) | [ATSUKO MOTOYAMA](https://appshunter.io/developer/1868868796) |

## What reviewers say

### Chat AI.

[App page](https://appshunter.io/ios/app/chat-ai/id6471974671)

Engage with AI characters offering 24/7 professional advice across diverse fields. Transform ideas into art, get image descriptions, and enjoy realistic, personalized conversations with AI experts and companions.

**Highlights:** AI-enhanced image description, AI art generation from ideas, Interactive AI expert consultations, Dynamic AI conversations, Advice across professional fields, AI soulmate for personalized chat

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gemini AI Expert | $7.99 | per 7 days |
| Gemini AI Expert | $19.99 | per month |


### Lunar Timer

[App page](https://appshunter.io/ios/app/lunar-timer/id6757776396)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan | $1.99 | per month |


## Frequently asked questions

### Is Chat AI. free?

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

### Is Lunar Timer free?

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

### Do Chat AI. or Lunar Timer have ads?

Lunar Timer shows ads; Chat AI. does not.

### Which is updated more often, Chat AI. or Lunar Timer?

Chat AI. ships an update every 2 months, and Lunar Timer every 10 days. Most recently, Chat AI. was updated on September 28, 2026 and Lunar Timer on September 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.*