Prediction games & advent calendars
that run themselves.

The white-label prediction game for companies, publishers, and sponsors – covering every major tournament and league – plus digital advent calendars for the holiday season. No dev team, no maintenance, 100% GDPR-compliant: share the link, watch engagement roll in.

Prediction game: expanded matchdays with score input
Digital advent calendar with 24 doors
ISO 27001 certified
GDPR compliant
Hosted in Germany
DPA under Art. 28 GDPR
Full-service setup in 48 hours
Used by Daimler, Toyota, Tefal, and 200+ brands
Two products, one platform

Prediction game or advent calendar. You pick the occasion.

Both run on the same technology: white-label, tracking, lead export and autopilot come with every product. What differs is the occasion and the rhythm.

Prediction game

For tournaments and leagues

Your audience predicts match results, collects points and comes back every matchday. The leaderboard brings the competition.

  • For every major tournament and league, from Bundesliga to the World Cup
  • Bonus questions, individual and team leaderboards
  • Runs for weeks up to a whole season
See the prediction games
Prediction game: expanded matchday with predictions and results
Advent calendar

For the holiday season

24 doors, a different game every day. Streaks and a grand prize keep your audience playing from December 1 to 24.

  • Prize wheel, scratch card, memory, quiz and more
  • Streak grand prize and streak savers
  • Register once, play for 24 days
See the advent calendar
Digital advent calendar with 24 doors
The problem

The newsletter goes out. Then what?

Most campaigns are over after one click. A newsletter gets opened or it does not. A giveaway gets filled in once. The office pool lives in a spreadsheet until the person running it goes on holiday.

A prediction game brings your audience back for every matchday, an advent calendar every morning for 24 days. Without your team writing a single email.

Your audience thinks you built it.

Logo, colours, font, domain and sender address are yours. The mechanics underneath are the same for everyone. Click through three real calendars.

A hotel gives regular guests one door every morning for 24 days. Instead of boxes it hangs baubles, every number a door, all in fir green and gold. See the live calendar →

Everything about white label →

Live advent calendar: Hotel
“With the custom football prediction game, we drew lots of prospects' attention to Barmenia and kept our customers engaged for several weeks.”
Patrick Sordon Online Marketing, Barmenia Krankenversicherung
“With Convert, our users get real added value and are introduced to our pizzas in a playful way.”
Hans Chawla Digital Marketing Manager, Domino's Pizza Germany
“A big advantage for us is that we can collect many qualified email addresses quickly and with relatively little effort. And we can't leave the very fast, highly competent support unmentioned.”
Katrin Jocham Marketing Manager, Coldtec
Prediction game & advent calendar

What's inside – prediction game or advent calendar

Your audience predicts, plays, and comes back daily. The leaderboard updates in real time. Marketing gets the leads. You drink coffee.

Autopilot

Full autopilot

Results come in, leaderboards and streaks update, winners are drawn – all fully automatic. Whether it's a three-week tournament, 24 doors, or a full season: zero hours of maintenance. Seriously: once it's live, there's nothing left for you to do.

See the live demo
Leaderboard from the Convert app
Three advent calendars branded for a hotel, a company and a publisher
White label

100% white-label

Logo, colours, font, subdomain (brand.predictions.fans) and sender address are yours. Every Convert reference can be removed, including in emails. See examples →

Leads
84,283

Leads generated by customers with football prediction games

Languages

Every language

Streaks

Streak grand prize

The grand prize is drawn among everyone who completed a streak – predicted every matchday, opened every door. Playing once isn't enough: the reason to come back is built in.

Streak milestones in the advent calendar: 21 and 24-door streaks
Reminders

Automatic reminders

A nudge before every prediction deadline, daily during advent. The mechanical reason why 87% of participants come back on average – without your team writing a single email.

From: predictions@your-brand.com
Your prediction for tonight, 8:45 pm
3 hours left until the prediction deadline.
Tracking

Tracking & leads

Your tracking pixel, a full analytics dashboard, and lead export as CSV or Excel – ready to import into any CRM or newsletter system. You know exactly who played, when the opt-in happened, and what got clicked.

EmailOpt-inSource
m.weber@…09:41Newsletter
j.lang@…10:07Instagram
s.roth@…10:12Website
Export · CSV / Excel
Advent calendar

A different game behind every door.

Nobody sticks with the same sweepstakes for 24 days. So the mechanic changes: spin one day, scratch the next, puzzle after that. Every game does a different marketing job.

A fashion retailer hands out coupon codes: 10 %, 20 % or free shipping, each code valid once. Everyone who spins has a reason to order in the shop today.

Try every game in the live demo →

Spin the Wheel door in the advent calendar
What your audience gets

More visits, more time, more leads.

Convert campaigns bring your audience back every day and collect leads along the way. The curves are example trends, the figures are averages from real campaigns.

Daily return visits
0average return rate

A prediction game brings people back for every matchday, the advent calendar every morning. Reminders and streaks keep the curve up.

Example trend · 24 days
Time on site
0

compared with static content

Static
Convert
Leads
0

generated with football prediction games

Completion rate
0

for quizzes and type checks

Conversion
0

compared with newsletters

Newsletter
Convert
Interactions
0

per participant per day

11× higher share rate¹ · 35% click-through on calls to action¹

Campaigns
0

delivered, largest prediction game with 100,000 participants

¹ Aggregated averages across Convert campaigns.

Your audience comes back every day. Your team never writes a single email. The leads land in your system.

Prediction game

One engine.
Every tournament.

World Cup, Champions League, Olympics, Handball WC, Cricket, Copa América – Convert powers every major tournament and every sport. Same platform, same autopilot, same 48-hour setup. In the holiday season the same technology runs as an advent calendar.

Show all 21 tournaments with dates
  • Milano-Cortina 2026 Winter OlympicsFeb 6 – Feb 22, 2026
  • IIHF Ice Hockey WC 2026May 15 – May 31, 2026
  • VNL 2026 (Men & Women)Jun 3 – Aug 3, 2026
  • FIFA World Cup 2026Jun 11 – Jul 19, 2026
  • UCL 26/27 – League PhaseSep 8 – Jan 27, 2027
  • EHF Women's EURO 2026Dec 3 – Dec 20, 2026
  • IHF Men's Handball WC 2027Jan 13 – Jan 31, 2027
  • UCL 26/27 – KnockoutsFeb 16 – Jun 5, 2027
  • IIHF Ice Hockey WC 2027May 14 – May 30, 2027
  • FIFA Women's World Cup 2027Jun 24 – Jul 25, 2027
  • Volleyball Women's WC 2027Aug 1 – Sep 6, 2027
  • FIBA Basketball WC 2027Aug 27 – Sep 12, 2027
  • Volleyball Men's WC 2027Sep 10 – Sep 26, 2027
  • UCL 27/28 – League PhaseSep 14 – Jan 26, 2028
  • Rugby Men's WC 2027Oct 1 – Nov 13, 2027
  • ICC Cricket WC 2027Oct 8 – Nov 13, 2027
  • EHF Men's EURO 2028Jan 10 – Jan 27, 2028
  • IIHF Ice Hockey WC 2028May 5 – May 21, 2028
  • Copa América 2028Jun 1 – Jun 28, 2028
  • UEFA EURO 2028Jun 9 – Jul 9, 2028
  • LA 2028 Summer OlympicsJul 14 – Jul 30, 2028

As of July 2026. Dates are indicative, per-tournament licensing, more sports on request.

Ask about a game for your tournament All tournaments & leagues
Tap to dismiss

Three occasions, one autopilot.

Ready-made campaigns for the next big occasions – or ask about your tournament of choice.

Bundesliga Prediction Game
Season 26/27 – kicks off mid-August
306 matches, 34 matchdays from August to May: every matchday brings your audience back – for an entire season.
– Predictions, bonus questions & leaderboard
– Join anytime, even mid-season
View the Bundesliga game
Advent Calendar
December 1–24, 2026
24 doors, 24 touchpoints: quiz, memory, prize wheel & streaks – register once, engaged for 24 days.
– 24-day campaign window
– A varied mix of interactive formats
View the Advent Calendar Digital advent calendar with opened doors
Handball World Championship 2027
January 13–31, 2027
The home World Championship: 32 teams, 112 matches, six German cities, final round at Cologne's Lanxess Arena.
– 19-day campaign window
– Predictions, bonus questions & leaderboard
View the Handball game

You're live in 48 hours. Here's how.

Tell us your goal (Leads? Engagement? Team building?) → We brand it to match your CI → You share the link → Done. Results update, rankings recalculate, prizes unlock – all automatically, from launch to the last winner.
Live prediction game: fixtures with national flags, score inputs, and points

Marketing teams love it.
HR teams love it too.

External: Marketing & Engagement
For your audience
Run a branded prediction game or advent calendar on your website, in your app, or as a standalone campaign. Boost daily visits, capture leads, and give sponsors a premium activation platform.
Publishers & media companies
Brands & e-commerce
Sponsors & advertisers
Sports clubs & federations
Internal: HR & Team Building
For your team
Boost morale and connect departments with a company-wide prediction game or advent calendar. Individual and team leaderboards for the prediction game, streaks as a daily ritual in December.
Employee engagement & retention
Cross-department team building
Employer branding campaigns
Internal communications touchpoint

Company prediction game →

Whether it's your team of 50
or your audience of 50,000.

Every package includes setup, hosting, and full autopilot for the entire campaign. Pick your size.

How many participants do you expect?
Starter
For your team
Internal rounds & small teams up to 750 participants
– Up to 750 participants
– Standard branding
– Basic dashboard reporting
– Full-service setup
Pricing factors: participants & runtime, self- or full-service. Quote within 24 h
Ask about internal rounds
Enterprise
For large organizations
Custom needs, from 5,000 participants
– from 5,000 participants
– White-label + custom domain
– Custom contracts, DPA & IT security
– Dedicated account manager
Pricing factors: reach, contract scope & number of campaigns. Quote within 24 h
Discuss Enterprise needs
Expecting more participants than planned? No problem and no shutdown – extra participants are simply added on.
All packages include full-service setup. Or build it yourself: create your own prediction game – at a reduced price.

Frequently Asked Questions

How much does it cost?
Pricing depends on package and participant count. Request a free quote – we'll get back to you within 24 hours.
How long does setup take?
You're typically live within 48 hours – and even at short notice: we've set up campaigns just 3 days before kick-off. With full-service, you provide your logo, colors, graphics, and copy – we build and configure the entire campaign and support you closely with any questions. With self-service, you configure everything yourself.
Is the platform GDPR compliant?
Yes. Riddle is ISO 27001 certified. All data is stored on German servers, with backup in Luxembourg. A DPA (data processing agreement) is available on request. Participant data stays within the EU, is never sold or shared, and is deleted after the campaign on request.
Can I use my own domain?
A custom domain is part of the Enterprise package. With Growth and Enterprise, you can also embed your game or calendar as an iFrame on your website. Alternatively, you get a subdomain like brand.tippspiel.fans or brand.predictions.fans – your choice.
Does my team need to manage it?
Barely. Results and leaderboards update fully automatically. Winners are drawn automatically – you just notify them and send out the prizes.
Which events can I run campaigns for?
We offer prediction games for every major tournament and league – World Cups, European Championships, the Champions League, Olympics, national leagues, and more (licensing per competition). Ready-made campaigns are currently available for the Bundesliga season 26/27, the Handball World Championship 2027, and EURO 2028, plus seasonal formats like the digital advent calendar. Don't see your competition? Get in touch.
What is a company prediction game?
A company prediction game (also known as an office pool or office sweepstake) is a branded prediction game a business runs for employees, customers, or fans – with leaderboards, bonus questions, and prizes. Convert delivers it white-label: GDPR-compliant, live within 48 hours, fully automated, for any major sporting event or league.
Why Convert instead of a free prediction-game tool?
Free tools are built for private groups, not brands. Convert is 100% white-label (your branding, your domain), with GDPR-compliant hosting in Germany, ISO 27001 certification, automatic scoring and winner drawing, lead export as CSV or Excel, and hands-on support – a sales-ready campaign, not a DIY toy.
Can we push leads into our CRM automatically?
Lead handover works via export: you download all leads – with every field from the registration form – as CSV or Excel from the dashboard, filtered by campaign or period, and import them into any CRM or newsletter system. Happy to walk through the process with you.
Is there an app to install?
No – by design. Prediction game and advent calendar run in the browser on any device: no installation, no app-store approval, no forced updates. One link and everyone's in. For internal use, the campaign can be embedded via iFrame directly into your existing employee app or intranet.
Does the campaign run in English or other languages?
Yes, in any language. Whether it's an international workforce or a multilingual audience: prediction games and advent calendars run in German, English, French – and any other language you need.
We're an agency – can we use Convert for our clients?
Yes. Convert is built as a white-label tool for client projects: multiple campaigns and clients in parallel, Convert stays invisible, and with a 48-hour setup even short-notice pitches work. All details: for agencies, publishers, and ad sales. Partner terms: hello@convert-app.com.
Can we build the game ourselves – and does AI help?
Yes. In self-service you build your campaign yourself – and the AI generator does the heavy lifting: one prompt and it creates questions, answer options, explanations, and matching images that you curate in minutes. Prefer to hand it off? Choose full-service and we set everything up.
How can sponsors be integrated?
In many places: branded bonus questions and doors, logo placements on the home, results, and leaderboard screens, and sponsored prizes. Many publishers and clubs fully refinance their campaign through a single prize sponsor.
What if we expect more participants than the package covers?
No problem – extra participants can be added flexibly. For larger volumes you move to the Enterprise package. Just tell us the reach you expect and we’ll share the right tier.

Prediction game or advent calendar?
Either way, you're live in 48 h.

30-minute demo. We'll show you exactly what your game or calendar looks like with your brand on it.

Book a Demo

No-obligation 30-minute demo · Quote within 24 hours · Add more participants at any time

About Convert

Convert is the white-label platform for prediction games and digital advent calendars by Riddle Technologies AG, based in Saarbrücken, Germany. Companies, publishers, and sponsors use it to launch fully branded, GDPR-compliant engagement campaigns in under 48 hours – prediction games for any major sporting event or league, plus advent calendar campaigns, from full-service setup to automatic winner drawing. The platform is ISO 27001 certified and all data is hosted in Germany. More than 600 customers have used Convert, with over 200 campaigns delivered – for brands including Daimler, Toyota, and Tefal.

Prefer to talk it through?

No call center, no ticket system: you reach the team that sets up your campaign. Call or email – answer within 24 hours.

Mike Hawkins
Your contact
Monday to Friday, 8 am to 6 pm. We also handle emails outside business hours.
Book a demo Live demo