Apps · Websites · AI · Belgium
We put juice into your ideas.
A Belgian studio for mobile apps, websites and AI. We design, launch and grow your products, and our own.
Talk about a project
2 apps live · iPhone and Android
+189
new users
3 Nov · RevenueCat
5.0
MaTheorie · App Store · 9 ratings
The studio, live.
Our apps' real numbers, straight from the source. Leading the way: MaTheorie (driving licence).
- Active users
- last 28 days · 2,764 on MaTheorie
- New users
- last 28 days · 2,673 on MaTheorie
- /5
- App Store rating
- MaTheorie · 9 ratings
New users per day · last 28 days
MaTheorieOther apps
| Day | New users |
|---|---|
| 7 October 2026 · MaTheorie 22 | 27 |
| 8 October 2026 · MaTheorie 17 | 23 |
| 9 October 2026 · MaTheorie 7 | 9 |
| 10 October 2026 · MaTheorie 8 | 9 |
| 11 October 2026 · MaTheorie 22 | 22 |
| 12 October 2026 · MaTheorie 18 | 21 |
| 13 October 2026 · MaTheorie 25 | 29 |
| 14 October 2026 · MaTheorie 84 | 86 |
| 15 October 2026 · MaTheorie 38 | 38 |
| 16 October 2026 · MaTheorie 20 | 20 |
| 17 October 2026 · MaTheorie 80 | 82 |
| 18 October 2026 · MaTheorie 118 | 119 |
| 19 October 2026 · MaTheorie 106 | 106 |
| 20 October 2026 · MaTheorie 97 | 97 |
| 21 October 2026 · MaTheorie 118 | 120 |
| 22 October 2026 · MaTheorie 127 | 127 |
| 23 October 2026 · MaTheorie 70 | 70 |
| 24 October 2026 · MaTheorie 81 | 81 |
| 25 October 2026 · MaTheorie 99 | 99 |
| 26 October 2026 · MaTheorie 122 | 122 |
| 27 October 2026 · MaTheorie 176 | 176 |
| 28 October 2026 · MaTheorie 225 | 225 |
| 29 October 2026 · MaTheorie 191 | 191 |
| 30 October 2026 · MaTheorie 137 | 137 |
| 31 October 2026 · MaTheorie 76 | 76 |
| 1 November 2026 · MaTheorie 137 | 137 |
| 2 November 2026 · MaTheorie 155 | 155 |
| 3 November 2026 · MaTheorie 189 | 189 |
Users: RevenueCat · rating: Belgian App Store · read on 4 November 2026
Our apps.
The studio also launches its own apps. They prove what we can do, with live numbers.
Driving licence
MaTheorie
Belgium's driving theory test, in your pocket.
active users, last 28 days
Weddings
Carnet de Mariage
What the wedding will cost, and where you stand.
active users, last 28 days
SoonSchool
CEB et CE1D Facile
The CEB and CE1D, prepared at home.
SoonEPC certification
Pebkit
The energy survey on a tablet, and the office on a PC.
What we do.
Four trades, one studio.
We design and build the app for your project, from the idea to its release on the App Store and Google Play.
We design and build the app for your project, from the idea to its release on the App Store and Google Play.
Talk about a project
Your app, in three choices
What we deliver6
- The iPhone app, on the App Store
- The Android app, on Google Play
- Sign-in and accounts
- In-app subscriptions
- Push notifications
- Store listings in French and Dutch
Your website, with MonSiteWeb.
Our website offer for freelancers and small businesses: a professional site with its own admin area, at a fixed price, ordered and paid online.
Order on monsiteweb.euThe price depends on the timeframe
€950excl. VAT, one-off payment
First version within 24 hours, final version within the timeframe you choose.
Then a monthly plan, first month free: hosting only from €29 excl. VAT per month.
monsiteweb.eu prices as of 4 November 2026
20sites built by MonSiteWeb
Claver InsuranceInsurance broker 
DeckmansPlumbing and heating 
AbrithermHeating and plumbing 
Naby PâtisserieCakes to order 
BodyFoodMeal delivery 
Safe LineAirport transfers 
KidzoFitKids' holiday camps 
TechnichauffHeating engineer 
ChauffithermHeating engineer 
El AboutiLaw firm
Ronny WindowsCustom joinery 
LibasounFashion shop 
MonSchoolSchool and families 
Cleanny DetailingCar detailing 
MirrorEffectEvent photobooth 
VeloDoctorBike repair 
StevisnackSandwich shop 
FixManiaPhone repair 
UmmanityHumanitarian charity 
Funérailles IslamiquesFuneral services
Your admin, automated.
With MonApplication, our custom tools offer, we automate the repetitive work of businesses, from the customer message to the invoice.
- 01 · What comes inA customer writes on WhatsApp, Messenger or Instagram.
- 02 · What the tool doesThe tool replies right away and files the request in your admin.
- 03 · The resultNo message forgotten again.
Example flow
MonApplication
Made to measure.
Web, mobile and AI, in Belgium
Questions.
Who is behind Dragon Juice?
AJ SRL, a Belgian company (VAT BE 0748.911.660), Rue des Colonies 11, 1000 Brussels. On the App Store, our apps are published under its name.
Do you build apps for others?
Yes. We design and build the app for your project, for iPhone and Android, through to its release on the App Store and Google Play.
Can I buy one of your apps?
Some are for sale. Tell us which one and we'll reply with its detailed figures.
Which apps are live?
MaTheorie (driving licence) and Carnet de Mariage (weddings), on iPhone and Android. The next one is in the works.
Where do the figures on this page come from?
Ratings, reviews and versions are read from the Belgian App Store and refreshed every 12 hours. None is rounded or made up.