# Probe vs Chat.ai

The clearest difference is in-app purchases: Probe at none against Chat.ai's 2. Probe also leads on update cadence (weekly vs every 4 months). Chat.ai's advantage is iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Chat.ai sells 2 in-app purchases, starting at $3.99 per 7 days. Probe asks for nothing beyond the download.

Probe ships an update weekly, Chat.ai every 4 months. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Probe | Chat.ai |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 months |
| Monetization | — | Freemium |
| Size | 29 MB | 102 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Sawant Sharma](https://appshunter.io/developer/1878714087) | [ilyas inajjar](https://appshunter.io/developer/1864886343) |

## What reviewers say

### Probe

[App page](https://appshunter.io/ios/app/probe-reconstruct-the-scene/id6759501062)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chat.ai

[App page](https://appshunter.io/ios/app/chatai-ai-characters/id6774737215)

Engage in dynamic conversations with a diverse cast of AI characters, from romantic companions to fantasy adventurers. Build stories together, customize interactions, and even create your own unique personas. Experience immersive roleplay with expressive replies and optional voice and photo features.

**Highlights:** Chat with diverse AI characters, Build stories collaboratively, Create custom AI personas, Expressive roleplay with actions and dialogue, Alternative replies and regeneration, Voice and photo features, Story memory and pinned messages

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $3.99 | per 7 days |
| Token Pack | $29.99 | one-time |


## Frequently asked questions

### Is Probe free?

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

### Is Chat.ai free?

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

### Do Probe or Chat.ai have ads?

Neither Probe nor Chat.ai shows ads.

### Which is updated more often, Probe or Chat.ai?

Probe ships an update weekly, and Chat.ai every 4 months. Most recently, Probe was updated on October 25, 2026 and Chat.ai on October 31, 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.*