Lotto Engine 2D vs Airro E6B
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lotto Engine 2D
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.
- Physics-based 2D/3D ball simulation
- Random number generation
- Customizable settings
- Favorite number selection
- Easy to use interface
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Download the app today to personalize your experience by choosing your favorite numbers! A creative application that simulates the movement of a ball in a container, based on a real physics 2D/3D engine, a fun random ball generator. It is a must-have gadget. Easy to use and easy to custom settings. A handy random random number-picking tool. You need it!
Airro E6B
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Small helpful tool to make aviation related calculations and conversions easy. Current functions: - Conversions: distance, mass, speed, temperature and volume - Calculations: cloud base, cross wind, isa deviation, pressure, ROD, TOC and glide path - Fuel uplift - Stopwatch We will try to continuously improve and update the application with new features.
Screenshots
Verdict
The clearest difference is price: Lotto Engine 2D at Free against Airro E6B's $1.99. Lotto Engine 2D also leads on update cadence (every 5 weeks vs every 40 months) and iOS requirement (13.0 vs 16.1). Airro E6B's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Lotto Engine 2D is free to download; Airro E6B costs $1.99 up front. Lotto Engine 2D sells 1 one-off in-app purchase. Airro E6B asks for nothing beyond the download.
Lotto Engine 2D ships an update every 5 weeks, Airro E6B every 40 months. The most recent releases landed on July 6, 2026 and September 12, 2026 respectively.
| Parameter | Lotto Engine 2D | Airro E6B |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.6 (14 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 5 weeks — better | Every 40 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.1 |
| Further details — not scored | ||
| Size | 17 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | 何均 邓 | Christian van der Meij |
In-app purchases
Lotto Engine 2D
- Unlock All Features$1.99
Airro E6B
No in-app purchases
Questions
Is Lotto Engine 2D free?
Is Airro E6B free?
Do Lotto Engine 2D or Airro E6B have ads?
Which is updated more often, Lotto Engine 2D or Airro E6B?
Other comparisons
