# ISRU vs Onion

The clearest difference is ads: Onion at none against ISRU's shown. Onion also leads on review sentiment (100% vs 65%) and rating (5.0 vs 4.7). ISRU's advantage is ratings volume (18 vs 1) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

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

Onion holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: ISRU has 18 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 65% of ISRU's written reviews are positive against 100% of Onion's.

ISRU ships an update every 6 days, Onion every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ISRU | Onion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (18 ratings)](https://appshunter.io/ios/app/isru/id6743388136/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/onion-mood-tracker/id6809275835/reviews)** |
| Number of ratings | **18** | 1 |
| Positive reviews | 65.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 days | **Every 2 days** |
| Monetization | Ad-supported | **Free** |
| Size | 30 MB | 8 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [Tom Sachs Studio](https://appshunter.io/developer/1802562987) | [Keep It Beezy LLC](https://appshunter.io/developer/1806232111) |

## What reviewers say

### ISRU

[App page](https://appshunter.io/ios/app/isru/id6743388136)

Engage in creative and athletic challenges designed to foster personal growth. Track your achievements on a leaderboard and your unique ID card. Embrace excellence through participation and find reward in the process.

**Highlights:** Creative and athletic challenges, Progress tracking, Leaderboard participation, Personal ID card, Focus on excellence through participation

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Exciting challenge
- 💡 Chance to win Mars Yard 3.0

**What reviewers complain about**

- 🐛 Buggy app
- 🐛 Lagging pages
- 🐛 Images deleting during daily logging
- 🐛 Incorrect point tallying
- 🐛 Time zone issues

**Reported bugs**

- Can't submit logs
- Sign up is broken

**Requested features**

- Seamless user experience
- Properly functioning app


### 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 ISRU free?

ISRU 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, ISRU or Onion?

Onion is rated higher. ISRU averages 4.7 out of 5 from 18 ratings, while Onion averages 5.0 from 1 ratings.

### Do ISRU or Onion have ads?

ISRU shows ads; Onion does not.

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

ISRU ships an update every 6 days, and Onion every 2 days. Most recently, ISRU was updated on October 30, 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.*