# Zenith AI vs Deftest

The clearest difference is in-app purchases: Zenith AI at none against Deftest's 3. Zenith AI also leads on iOS requirement (15.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Deftest sells 3 in-app purchases, starting at $4.99 per month. Zenith AI asks for nothing beyond the download.

Zenith AI ships an update weekly, Deftest every 9 days. The most recent releases landed on October 18, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Zenith AI | Deftest |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Size | 67 MB | 4 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [seunghwan choi](https://appshunter.io/developer/1880239426) | [Metin Demirel](https://appshunter.io/developer/1888767998) |

## What reviewers say

### Zenith AI

[App page](https://appshunter.io/ios/app/zenith-ai-crypto-analysis/id6759692019)

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

**In-app purchases:** none


### Deftest

[App page](https://appshunter.io/ios/app/deftest/id6804301896)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Deftest Monthly | $4.99 | per month |
| Deftest Monthly | $49.99 | per year |
| Deftest Lifetime | $199.99 | one-time |


## Frequently asked questions

### Is Zenith AI free?

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

### Is Deftest free?

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

### Do Zenith AI or Deftest have ads?

Neither Zenith AI nor Deftest shows ads.

### Which is updated more often, Zenith AI or Deftest?

Zenith AI ships an update weekly, and Deftest every 9 days. Most recently, Zenith AI was updated on October 18, 2026 and Deftest on October 21, 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.*