# Arbitrium vs Good Decision

The clearest difference is rating: Arbitrium at 4.9 against Good Decision's 2.7. Arbitrium also leads on review sentiment (100% vs 67%) and iOS requirement (15.6 vs 26.0). Good Decision's advantage is update cadence (every 2 months vs every 28 months) and monetization model (free vs free with in-app purchases). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Arbitrium sells 1 one-off in-app purchase and Good Decision sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Arbitrium holds the better App Store score, 4.9 against 2.7. Both are backed by a comparable volume of ratings — 11 and 6 respectively. Written reviews point the same way: 100% of Arbitrium's written reviews are positive against 67% of Good Decision's.

Arbitrium ships an update every 28 months, Good Decision every 2 months. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Arbitrium | Good Decision |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (11 ratings)](https://appshunter.io/ios/app/arbitrium/id1369876075/reviews)** | [2.7 (6 ratings)](https://appshunter.io/ios/app/good-decision-decision-maker/id1485292223/reviews) |
| Number of ratings | **11** | 6 |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 8 MB | 4 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [The Lost Project](https://appshunter.io/developer/380868134) | [Dever Consultancy Ltd](https://appshunter.io/developer/1053049907) |

## What reviewers say

### Arbitrium

[App page](https://appshunter.io/ios/app/arbitrium/id1369876075)

This app assists in making rational decisions by allowing you to define criteria and rate your options. It uses a weighted decision matrix to help you identify the best choice for various life scenarios.

**Highlights:** Define decision criteria, Rate available options, Weighted decision matrix, Identify best choice, Save and manage decisions

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Mode | $0.99 | one-time |


### Good Decision

[App page](https://appshunter.io/ios/app/good-decision-decision-maker/id1485292223)

This app helps you make informed choices by comparing options against your personal criteria. It uses a weighted scoring system to objectively determine the best path forward, with AI assistance for creating decision matrices from links, text, or descriptions. Available across Apple devices, it syncs automatically and offers multiple sharing options.

**Highlights:** Weighted decision matrices, AI-powered matrix creation, Cross-device sync via iCloud, Share decisions as image, text, or spreadsheet, Dark Mode support, Offline decision making

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $4.99 | one-time |


## Frequently asked questions

### Is Arbitrium free?

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

### Is Good Decision free?

Good Decision is free to download, with in-app purchases available.

### Which has better reviews, Arbitrium or Good Decision?

Arbitrium is rated higher. Arbitrium averages 4.9 out of 5 from 11 ratings, while Good Decision averages 2.7 from 6 ratings.

### Do Arbitrium or Good Decision have ads?

Neither Arbitrium nor Good Decision shows ads.

### Which is updated more often, Arbitrium or Good Decision?

Arbitrium ships an update every 28 months, and Good Decision every 2 months. Most recently, Arbitrium was updated on September 10, 2026 and Good Decision on September 9, 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.*