# Arbitrium vs Smart Decision

The clearest difference is update cadence: Smart Decision at every 5 weeks against Arbitrium's every 28 months. Arbitrium's advantage is ratings volume (11 vs 2) and device support (3 vs 1). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Arbitrium sells 1 one-off in-app purchase and Smart Decision sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for Arbitrium against 5.0 for Smart Decision. That said, the two scores are not equally well evidenced: Arbitrium has 11 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Arbitrium ships an update every 28 months, Smart Decision every 5 weeks. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Arbitrium | Smart Decision |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (11 ratings)](https://appshunter.io/ios/app/arbitrium/id1369876075/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/smart-decision/id1501939270/reviews)** |
| Number of ratings | **11** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 8 MB | 2 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [The Lost Project](https://appshunter.io/developer/380868134) | [Michael Klug](https://appshunter.io/developer/1457077311) |

## 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 |


### Smart Decision

[App page](https://appshunter.io/ios/app/smart-decision/id1501939270)

This app helps you make informed choices by comparing options based on your defined criteria. It supports various criterion types and allows you to weight their importance for a clear, ranked outcome.

**Highlights:** Define options and criteria, Six criterion types supported, Weighted importance for criteria, Real-time result updates, iCloud Sync across devices, Free to use with optional tips

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Large Tip | $9.99 | one-time |


## Frequently asked questions

### Is Arbitrium free?

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

### Is Smart Decision free?

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

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

Smart Decision is rated higher. Arbitrium averages 4.9 out of 5 from 11 ratings, while Smart Decision averages 5.0 from 2 ratings.

### Do Arbitrium or Smart Decision have ads?

Neither Arbitrium nor Smart Decision shows ads.

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

Arbitrium ships an update every 28 months, and Smart Decision every 5 weeks. Most recently, Arbitrium was updated on October 13, 2026 and Smart Decision on October 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.*