# Immunally vs Onion

The clearest difference is update cadence: Onion at every 2 days against Immunally's every 4 days. Immunally's advantage is ratings volume (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, rating, review sentiment and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Immunally against 5.0 for Onion. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Immunally ships an update every 4 days, Onion every 2 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Immunally | Onion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/immunally-autoimmune-tracker/id6787620519/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/onion-mood-tracker/id6809275835/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | Free | Free |
| Size | 7 MB | 8 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [Immunally LLC](https://appshunter.io/developer/6787620521) | [Keep It Beezy LLC](https://appshunter.io/developer/1806232111) |

## What reviewers say

### Immunally

[App page](https://appshunter.io/ios/app/immunally-autoimmune-tracker/id6787620519)

Effortlessly track symptoms, meals, medications, and lab results for autoimmune conditions. Gain clear insights into patterns and triggers to better manage your health and prepare for doctor appointments.

**Highlights:** Log symptoms, meals, medications, and labs, Connect Apple Health for automatic data import, Analyze patterns and detect triggers, Run elimination experiments, Prepare for doctor appointments with data summaries, Private and secure health data

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

**In-app purchases:** none


### Onion

[App page](https://appshunter.io/ios/app/onion-mood-tracker/id6809275835)

This app helps you track your moods and journal your thoughts with simple check-ins and customizable options. It offers visual insights into your emotional patterns and allows for private, device-stored entries with optional iCloud backup.

**Highlights:** Simple mood check-ins, Personal journaling, Mood calendar and charts, Customizable moods and associations, Optional daily reminders, Device-only storage, iCloud backup option, Apple Health integration

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

**In-app purchases:** none


## Frequently asked questions

### Is Immunally free?

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

### Is Onion free?

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

### Which has better reviews, Immunally or Onion?

Immunally and Onion are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do Immunally or Onion have ads?

Neither Immunally nor Onion shows ads.

### Which is updated more often, Immunally or Onion?

Immunally ships an update every 4 days, and Onion every 2 days. Most recently, Immunally was updated on October 31, 2026 and Onion on October 31, 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.*