# AOS Calculator vs 小决策 · Decision Maker

The clearest difference is iOS requirement: AOS Calculator at 9 against 小决策 · Decision Maker's 11.0. On price, update cadence, ads 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.

AOS Calculator ships an update every 4 months, 小决策 · Decision Maker every 5 months. The most recent releases landed on October 26, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | AOS Calculator | 小决策 · Decision Maker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | — | Free |
| Size | 37 MB | 26 MB |
| Requires iOS | **9** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AOS Technologies AG](https://appshunter.io/developer/1372435088) | [何均 邓](https://appshunter.io/developer/1621073530) |

## What reviewers say

### AOS Calculator

[App page](https://appshunter.io/ios/app/aos-calculator/id1372435089)

**Features:** macOS Compatibility

**In-app purchases:** none


### 小决策 · Decision Maker

[App page](https://appshunter.io/ios/app/decision-maker/id1635939007)

This app helps you make quick decisions by inputting your dilemma and options. It uses a random decision-making engine with a unique design to help you choose between options for everyday situations or even work-related tasks.

**Highlights:** Random decision engine, Add custom decisions, Multiple options per decision, Set number of random results, Unique design style, Suitable for various scenarios

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

**In-app purchases:** none


## Frequently asked questions

### Is AOS Calculator free?

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

### Is 小决策 · Decision Maker free?

小决策 · Decision Maker is free to download, with no in-app purchases.

### Do AOS Calculator or 小决策 · Decision Maker have ads?

Neither AOS Calculator nor 小决策 · Decision Maker shows ads.

### Which is updated more often, AOS Calculator or 小决策 · Decision Maker?

AOS Calculator ships an update every 4 months, and 小决策 · Decision Maker every 5 months. Most recently, AOS Calculator was updated on October 26, 2026 and 小决策 · Decision Maker on October 20, 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.*