# Zen Logic Pro vs River Drift

The clearest difference is in-app purchases: Zen Logic Pro at none against River Drift's 3. Zen Logic Pro also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. River Drift sells 3 one-off in-app purchases. Zen Logic Pro asks for nothing beyond the download.

Zen Logic Pro ships an update every 3 weeks, River Drift every 2 weeks. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Zen Logic Pro | River Drift |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 271 MB | 161 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [老三 刘](https://appshunter.io/developer/6783382679) | [Nift Designs](https://appshunter.io/developer/6796812201) |

## What reviewers say

### Zen Logic Pro

[App page](https://appshunter.io/ios/app/zen-logic-pro/id6787879971)

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

**In-app purchases:** none


### River Drift

[App page](https://appshunter.io/ios/app/river-drift-water-connect/id6796811989)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Diamonds | $1.99 | one-time |
| 600 Diamonds | $9.99 | one-time |
| 2400 Diamonds | $19.99 | one-time |


## Frequently asked questions

### Is Zen Logic Pro free?

Zen Logic Pro is free to download, with no in-app purchases.

### Is River Drift free?

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

### Do Zen Logic Pro or River Drift have ads?

River Drift shows ads; Zen Logic Pro does not.

### Which is updated more often, Zen Logic Pro or River Drift?

Zen Logic Pro ships an update every 3 weeks, and River Drift every 2 weeks. Most recently, Zen Logic Pro was updated on October 31, 2026 and River Drift on October 29, 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.*