# AITSO vs Synthia

The clearest difference is review sentiment: Synthia at 100% against AITSO's 52%. Synthia also leads on rating (5.0 vs 3.2) and in-app purchases (none vs 1). AITSO's advantage is ratings volume (49 vs 2) and iOS requirement (8.0 vs 11.0). On price and device support there is nothing between them.

Both are free to download. AITSO sells 1 one-off in-app purchase. Synthia asks for nothing beyond the download.

Synthia holds the better App Store score, 5.0 against 3.2. That said, the two scores are not equally well evidenced: AITSO has 49 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 52% of AITSO's written reviews are positive against 100% of Synthia's.

## The numbers

| Metric | AITSO | Synthia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (49 ratings)](https://appshunter.io/ios/app/aitso-talking-ai-chatbot/id918657406/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/synthia-ai-prototype/id1278737721/reviews)** |
| Number of ratings | **49** | 2 |
| Positive reviews | 52.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 22 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 9 MB | 44 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Drum Starz](https://appshunter.io/developer/299477766) | [Bad Assassin Games](https://appshunter.io/developer/556279629) |

## What reviewers say

### AITSO

[App page](https://appshunter.io/ios/app/aitso-talking-ai-chatbot/id918657406)

Engage in intelligent conversations with an AI chatbot that remembers your past interactions. This app offers a unique retro experience, allowing you to ask anything and receive thoughtful responses. It also features voice modulation, music playback, and visual effects.

**Highlights:** Intelligent AI conversations, Remembers past interactions, Text-to-speech output, Adjustable voice pitch, Play random songs, Flashlight strobing

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $0.99 | one-time |


### Synthia

[App page](https://appshunter.io/ios/app/synthia-ai-prototype/id1278737721)

Explore the fundamentals of AI chatbot programming by creating custom responses to keywords. This prototype allows you to build and test simple conversational logic, offering a glimpse into how AI understands and reacts to user input.

**Highlights:** Customizable chatbot responses, Keyword detection logic, AI programming simulation, If-statement construction, Test conversational logic, Prototype for full version

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is AITSO free?

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

### Is Synthia free?

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

### Which has better reviews, AITSO or Synthia?

Synthia is rated higher. AITSO averages 3.2 out of 5 from 49 ratings, while Synthia averages 5.0 from 2 ratings.

### Do AITSO or Synthia have ads?

AITSO shows ads; Synthia does not.

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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.*