# Matrix Calc Delta vs LuckyDecide

The clearest difference is in-app purchases: Matrix Calc Delta at none against LuckyDecide's 4. Matrix Calc Delta also leads on iOS requirement (13.0 vs 16.4). LuckyDecide's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 21 months). On price and device support there is nothing between them.

Both are free to download. LuckyDecide sells 4 in-app purchases, starting at $1.29 per month. Matrix Calc Delta asks for nothing beyond the download.

Matrix Calc Delta ships an update every 21 months, LuckyDecide every 3 weeks. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Matrix Calc Delta | LuckyDecide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/luckydecide-spin-wheel/id6740568962/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 21 months | **Every 3 weeks** |
| Monetization | — | Freemium |
| Size | 20 MB | 78 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sae Ueno](https://appshunter.io/developer/1598709865) | [立战 王](https://appshunter.io/developer/1790215010) |

## What reviewers say

### Matrix Calc Delta

[App page](https://appshunter.io/ios/app/matrix-calc-delta/id6550892892)

**Features:** macOS Compatibility

**In-app purchases:** none


### LuckyDecide

[App page](https://appshunter.io/ios/app/luckydecide-spin-wheel/id6740568962)

This app helps you make decisions easily and have fun doing it. It offers a spinning wheel, coin flips, finger roulette, number generation, and 3D dice. It's perfect for parties, everyday choices, and task allocation.

**Highlights:** Spinning wheel with custom settings, Realistic 3D coin flip animations, Finger roulette for group selection, Random number generator (single/dual group), Immersive 3D dice rolling, Offline support

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LuckyDecide Pro(1 Month) | $1.29 | per month |
| LuckyDecide Pro(1 Year) | $5.49 | per year |
| LuckyDecide Pro (Lifetime) | $6.29 | one-time |
| LuckyDecide Pro (Lifetime) | $8.99 | one-time |


## Frequently asked questions

### Is Matrix Calc Delta free?

Matrix Calc Delta is free to download, with no in-app purchases.

### Is LuckyDecide free?

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

### Do Matrix Calc Delta or LuckyDecide have ads?

Matrix Calc Delta shows ads; LuckyDecide does not.

### Which is updated more often, Matrix Calc Delta or LuckyDecide?

Matrix Calc Delta ships an update every 21 months, and LuckyDecide every 3 weeks. Most recently, Matrix Calc Delta was updated on October 13, 2026 and LuckyDecide on October 24, 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.*