# Lotto Engine 2D vs Lottery Probability Calculator

The clearest difference is in-app purchases: Lottery Probability Calculator at none against Lotto Engine 2D's 1. Lotto Engine 2D's advantage is ads (none vs shown) and update cadence (every 5 weeks vs every 10 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Lotto Engine 2D sells 1 one-off in-app purchase. Lottery Probability Calculator asks for nothing beyond the download.

Lotto Engine 2D ships an update every 5 weeks, Lottery Probability Calculator every 10 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Lotto Engine 2D | Lottery Probability Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (15 ratings)](https://appshunter.io/ios/app/lotto-engine-2d/id1638054406/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 5 weeks** | Every 10 months |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 17 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [何均 邓](https://appshunter.io/developer/1621073530) | [Kouji Yamauchi](https://appshunter.io/developer/1519365107) |

## What reviewers say

### Lotto Engine 2D

[App page](https://appshunter.io/ios/app/lotto-engine-2d/id1638054406)

This app generates random numbers using a physics-based simulation of balls in a container. Personalize your experience by selecting favorite numbers and enjoy a fun, easy-to-use random number picker.

**Highlights:** Physics-based 2D/3D ball simulation, Random number generation, Customizable settings, Favorite number selection, Easy to use interface

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 👍 Very good software
- 👍 Reliable and durable
- 👍 Conscientious and careful maintenance
- 👍 No advertising


### Lottery Probability Calculator

[App page](https://appshunter.io/ios/app/lottery-probability-calculator/id6448104037)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lotto Engine 2D free?

Lotto Engine 2D is free to download, with in-app purchases available.

### Is Lottery Probability Calculator free?

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

### Do Lotto Engine 2D or Lottery Probability Calculator have ads?

Lottery Probability Calculator shows ads; Lotto Engine 2D does not.

### Which is updated more often, Lotto Engine 2D or Lottery Probability Calculator?

Lotto Engine 2D ships an update every 5 weeks, and Lottery Probability Calculator every 10 months. Most recently, Lotto Engine 2D was updated on November 3, 2026 and Lottery Probability Calculator on November 3, 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.*