---
title: "Lottery System21 - Reviews, Revenue and Downloads in Belgium | Apple App Store"
description: "BETTER ODDS WITH SYSTEM21!  Play smarter, not harder! System21 is THE intelligent number system for all 5-number lotteries like EuroMillions, MegaMillions, MillionDay, Totoloto and many more.  WHY SYS"
---

# Lottery System21 — Belgium
> A Lottery System

![Lottery System21 App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/b7/d3/53/b7d353d9-bbe6-d60c-fb9e-3612951c112d/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png)

**Developer:** [Heinz Niederhaeuser](https://apptail.io/developer/heinz-niederhaeuser-SLSc)
**Category:** Productivity
**Rating:** N/A (0 ratings)
**Price:** €2.99
**Bundle ID:** app.system21.system21
**Store:** Apple App Store
**Country:** Belgium
**Version:** 1.4.2 (released 2026-03-21)
**Original Release:** 2023-06-17
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/be/app/app/id6448834334)
**AppTail Page:** [https://apptail.io/app/lottery-system21-CzOm/belgium](https://apptail.io/app/lottery-system21-CzOm/belgium)

## Lottery System21 Description
BETTER ODDS WITH SYSTEM21!

Play smarter, not harder! System21 is THE intelligent number system for all 5-number lotteries like EuroMillions, MegaMillions, MillionDay, Totoloto and many more.

WHY SYSTEM21?
• Mathematically optimized system with 21 intelligent combinations
• GUARANTEED hits when numbers match (see details below)
• Buy once, use unlimited - no hidden costs!
• Works with ANY 5-number lottery worldwide

IT'S SIMPLE:

1. Choose your 21 favorite numbers
2. The app automatically generates 21 optimized picks
3. Transfer them to your lottery tickets - done!

GUARANTEED HITS - MATHEMATICALLY PROVEN!

When 2 or more of your 21 numbers appear in the draw, System21 guarantees:

With 2 matching numbers:
• 1× 2-number match

With 3 matching numbers:
• 3× 2-number matches
• OR 1× 3-number match

With 4 matching numbers:
• 6× 2-number matches
• OR 1× 3-number match and 3× 2-number matches
• OR 1× 4-number match

With 5 matching numbers:
• 10× 2-number matches
• OR 1× 3-number match and 7× 2-number matches
• OR 1× 4-number match
• OR 1× 5-number match


IMPORTANT NOTES:

• This app is a calculation tool - you buy tickets as usual at official lottery outlets
• System21 is based on mathematics, not luck (your number selection is up to you!)
• Always have tickets officially checked - the app assumes no liability for handling errors
• For persons 18+ only - please play responsibly!
• Not an official lottery app, but compatible with all 5-number lotteries
• One-time purchase - ALL future updates free!

SUPPORT:
Questions? Contact us BEFORE writing a negative review! The app is kept simple, but System21 works 100% as described.

Download now and play smarter!

## Lottery System21 Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/19/8f/5f/198f5f63-68bc-884a-9593-49f29aba731a/iOS65-ScreenShot1-ChangeLottery.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/4a/dd/d0/4addd003-fd26-ef23-6a70-ccc5351dccd2/iOS65-ScreenShot2-Choose.png/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/65/a9/54/65a95456-7e4c-d5a1-db6b-31a45f931a97/iOS65-ScreenShot3-System21.png/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/88/c8/6a/88c86a03-da2b-a411-ab66-addf5283061d/iOS65-ScreenShot4-Draw.png/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ef/4b/0d/ef4b0de2-627a-b911-3a6f-6d2c9b53076e/iOS65-ScreenShot5-Win.png/1284x2778.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/49/55/53/495553f6-4d95-9bc0-5c85-45988fe2a72a/iOS65-ScreenShot6-Instructions.png/1284x2778.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/f0/8f/1e/f08f1e0e-16b3-26e9-c375-6f6dc2521031/iOS65-ScreenShot7-Language.png/1284x2778.png)







## Lottery System21 Available In
- [Belgium](https://apptail.io/app/lottery-system21-CzOm/belgium)
- [Switzerland](https://apptail.io/app/lottery-system21-CzOm/switzerland)

---

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