How good is your memory, really?
One More Digit gives you a number every day. Your job? Remember it until tomorrow. It sounds simple. It isn't.
Each day, a new number is revealed. Study it, lock it in your mind, and come back the next day to prove you remember it. No tricks, no shortcuts โ just you and your memory. As your streak grows, so does the challenge. Start with 3 digits and work your way up to 7, 8, 9, and beyond. Miss a day or get it wrong, and you start over.
**How it works**
โ A new number is revealed each day
โ Study it for as long as you need
โ Use your one peek if you need a reminder
โ Come back the next day and type it from memory
โ Get it right and your streak grows โ and so does the number length
**Not in the mood to wait? Try Sprint.**
Sprint mode cuts the 24 hours down to 60 seconds. You'll memorize a number, work through a reverse counting challenge designed to actively disrupt your memory, then immediately try to recall it. Round after round, no waiting. The distraction is real โ it's the same technique used in clinical memory assessments. Your Sprint streak is tracked separately, so your daily progress is always safe.
**Want real pressure? Challenge someone in Duel.**
Duel mode puts you head-to-head against another player. Same number, same distraction, one winner. Share a room code with a friend, memorize together, and race to recall. Both players get one attempt per round โ a wrong answer hands the round to your opponent instantly. The digit count climbs each round, so if it goes to five, you're both recalling 7-digit numbers with someone watching. It's the most honest test of whether your memory is actually solid or just comfortable.
**Why One More Digit?**
โ Builds real working memory over time
โ Three modes: Daily, Sprint, and Duel
โ Takes less than a minute a day
โ No ads, no gimmicks, no endless levels
โ A small but satisfying daily mental challenge
Your brain is a muscle. Give it something to hold onto.
Train your math memory. Recall it tomorrow โ or sprint it in 60 seconds.
Date de mise ร jour
30 apl 2026