# Vayu Ketamine vs Logictry

The clearest difference is update cadence: Logictry at every 6 days against Vayu Ketamine's fortnightly. Vayu Ketamine's advantage is iOS requirement (8.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Vayu Ketamine ships an update fortnightly, Logictry every 6 days. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Vayu Ketamine | Logictry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (11 ratings)](https://appshunter.io/ios/app/logictry/id6478935529/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | — | Free |
| Size | 178 MB | 27 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Vayu Foundation](https://appshunter.io/developer/1506009691) | [Logictry Inc](https://appshunter.io/developer/1734503186) |

## What reviewers say

### Vayu Ketamine

[App page](https://appshunter.io/ios/app/vayu-ketamine/id1513301421)

**Features:** macOS Compatibility

**In-app purchases:** none


### Logictry

[App page](https://appshunter.io/ios/app/logictry/id6478935529)

This app assists users in making well-informed decisions by integrating expert knowledge, decision-making tools, and AI chat. It prioritizes human reasoning over passive content consumption, acting as a comprehensive decision support system for complex choices.

**Highlights:** Expert-curated resources, Decision support tools, Expert-trained AI chat, Human reasoning focus, Decision clarity and confidence

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

**In-app purchases:** none


## Frequently asked questions

### Is Vayu Ketamine free?

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

### Is Logictry free?

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

### Do Vayu Ketamine or Logictry have ads?

Neither Vayu Ketamine nor Logictry shows ads.

### Which is updated more often, Vayu Ketamine or Logictry?

Vayu Ketamine ships an update fortnightly, and Logictry every 6 days. Most recently, Vayu Ketamine was updated on November 7, 2026 and Logictry on November 4, 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.*