# Cogni vs AllergyVax

The clearest difference is ads: Cogni at none against AllergyVax's shown. On price, update cadence, 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.

Cogni ships an update every 3 months, AllergyVax every 4 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Cogni | AllergyVax |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (23 ratings)](https://appshunter.io/ios/app/cogni/id902479424/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 48.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | — |
| Size | 31 MB | 84 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 17+ |
| Developer | [Cogni](https://appshunter.io/developer/1623595261) | [BFC Clinica de Saude Ltda](https://appshunter.io/developer/1685148607) |

## What reviewers say

### Cogni

[App page](https://appshunter.io/ios/app/cogni/id902479424)

This app helps you understand your emotions and thought patterns through easy-to-use journaling. It's designed to support cognitive-behavioral therapy techniques for self-learning and therapy sessions. Track your feelings, identify behavioral patterns, and gain better emotional control.

**Highlights:** Thought record journaling, Mood and emotion tracking, Identify behavioral patterns, Support for therapy sessions, Self-learning tool, Emotion charts

**In-app purchases:** none


### AllergyVax

[App page](https://appshunter.io/ios/app/allergyvax/id6448621071)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cogni free?

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

### Is AllergyVax free?

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

### Do Cogni or AllergyVax have ads?

AllergyVax shows ads; Cogni does not.

### Which is updated more often, Cogni or AllergyVax?

Cogni ships an update every 3 months, and AllergyVax every 4 months. Most recently, Cogni was updated on October 26, 2026 and AllergyVax on October 27, 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.*