Live quizzes. Maths duels. Step-by-step maths. Online exams. One SumClash.

Four doors, one platform

SumClash Live, Learn, Lab and Exam run on the same platform, but each one is built for a different job — and a different person.

SumClash Live: a live maths quiz on the big screen

For schools, businesses and events.

• Players join from any phone with a 6-digit PIN or QR code — no app, no sign-up
• Quiz rounds from your question bank, or Human Calculator rounds
• Live leaderboard, podium and a breakdown of every answer
• Up to 300 players in one session on the Premium plan

Join with a PIN · Host a live quiz · Explore SumClash Live

SumClash Learn: maths practice that plays like a sport

For students, players and parents.

• Real-time 1v1 duels against friends, random opponents or Summy, our AI
• 35+ maths games, and group duels for up to 20 friends in 7 modes
• A rating, levels and badges — plus WAEC and JAMB practice
• Guardians run up to 4 child accounts and follow their progress

Sign up free · Explore SumClash Learn

SumClash Lab: ask any maths question and watch it solved

For students, teachers and parents.

• Type or snap any question and watch it solved one step at a time
• Graphs, figures and charts appear beside the step they belong to
• Lessons, practice and interactive labs from arithmetic to calculus
• Ask Summy, our AI tutor, why a step was done — the Lab engine checks the maths

Open the Lab · Explore SumClash Lab

SumClash Exam: your own online exam portal

For schools, exam bodies, NGOs and businesses.

• Question banks, with AI question drafting by Summy
• Timed assessments, bulk CSV candidate import and proctoring
• Your own portal: yourname.sumclash.com or your own domain
• Results, and certificates anyone can verify by QR code

Start for your school · Candidate login · Explore SumClash Exam

A whole room, one quiz, every phone

The host runs the session on a projector or TV. Players type the PIN at sumclash.com/join, pick a nickname and play along — each phone shows their own rank while the big screen shows the top 10.

• Host approves players, or lets everyone in
• Human Calculator: 1–50 rounds of flashing numbers
• Streaks, a live leaderboard and a podium
• 5–120 seconds per question — you set the pace

Explore SumClash Live

Inside the player app

Every duel has a clock, a score and a real opponent — and every result moves your rating.

Group duels with friends

Open a party room for 2–20 players, share the PIN and pick a mode. Winners earn credits. Modes: Classic, Last One Standing, Hot Potato, Sudden Death, Team Battle, King of the Hill and Maths Bingo.

• 35+ maths games — Tug of War, Number Maze, Fraction Frenzy and more
• 1500 starting rating — every rated duel moves it; levels and badges follow
• Summy, the AI opponent: nobody online? Play Summy and start straight away.
• Human Calculator: numbers flash one at a time — add them up in your head. A placement round finds your level.
• Guardians and child accounts: run up to four child accounts from your own — no email or password for the child — and switch into one to let them play.
• WAEC and JAMB practice: WASSCE-style papers and JAMB UTME mocks from SumClash Academy, with a report after every attempt.

Sign up free · Explore SumClash Learn

Your exams, your portal, your name on it

Build question banks, set timed assessments and add candidates from a CSV. Candidates sit the exam on your own branded portal; you release results and certificates anyone can verify.

• AI drafts questions; you review them
• Proctoring flags for a person to review
• Offline CBT centres on Enterprise
• Free plan: 50 candidates a month

Start for your school · Explore SumClash Exam

Live + Learn + Exam = SumClash

Players start free. A room joins with a PIN. Organisations start on the Free plan.

Sign up free · Join a live game · Register your organisation