# Dotta vs Tridigm

The clearest difference is in-app purchases: Tridigm at none against Dotta's 1. Dotta's advantage is update cadence (weekly vs every 3 weeks) and iOS requirement (17.0 vs 26.1). On price, ads and device support there is nothing between them.

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

Dotta ships an update weekly, Tridigm every 3 weeks. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Dotta | Tridigm |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 3 MB | 188 MB |
| Requires iOS | **17.0** | 26.1 |
| Devices | iPhone, iPad | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Perma Evidence SA](https://appshunter.io/developer/1628117471) | [LIBBA-T](https://appshunter.io/developer/6773543032) |

## What reviewers say

### Dotta

[App page](https://appshunter.io/ios/app/dotta/id6578448069)

This AI assistant offers voice-activated interaction for easy access to advanced technology. Users can ask thousands of questions with a simple credit top-up, avoiding subscriptions. It's designed for all skill levels.

**Highlights:** AI-powered assistance, Voice interaction, Simple button interface, Credit top-up system, No subscriptions required

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| up to 5000 questions $5+VAT | $4.99 | one-time |


### Tridigm

[App page](https://appshunter.io/ios/app/tridigm/id6773543030)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Dotta free?

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

### Is Tridigm free?

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

### Do Dotta or Tridigm have ads?

Neither Dotta nor Tridigm shows ads.

### Which is updated more often, Dotta or Tridigm?

Dotta ships an update weekly, and Tridigm every 3 weeks. Most recently, Dotta was updated on October 4, 2026 and Tridigm on October 15, 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.*