01
Daily
One numbered puzzle for everyone. Solve it, replay it, then return tomorrow.
Daily number protocol / 001
Six numbers.
One exact result.
A daily puzzle about order, restraint, and finding the cleanest possible route.
Daily · hard · no. 005Step 00 / 17
Example solve: target 383. One hundred divided by two is 50. Nine plus eight is 17. Fifty multiplied by eight is 400. Four hundred minus 17 is 383.
01The method
The complete interaction
One move. Three decisions.
Choose a value, choose an operation, then choose the second value. The numbers stay fixed below so the operation can show its full effect.
- 01Number48First value
- 02Operation+Add
- 03Number6Second value
Result returns to the board
Two available values become one. The result can be selected again on the next move.
48+6=
With 48 and 6, addition makes 54, subtraction makes 42, multiplication makes 288, and division makes 8.
The board gets smaller. The possibilities change.
02The daily
One ritual, several ways in
Same target.
Different thinking.
Sumform is designed as a small daily encounter—not an endless feed. Finish the numbered puzzle, refine it, or keep going on your own terms.
02
Freeplay
Keep thinking without waiting. Choose a difficulty or let Sumform decide.
03
Archive
Return to missed numbered puzzles and improve the route without rewriting history.
04
Stats
See solves, streaks, stars, pace, and recent Freeplay results in one clear record.
03In progress
Real iPhone captures / no mock puzzle UI
The puzzle lives
in the middle.
A board is not a poster. Values disappear, useful results return, and the route changes with every merge. Light and dark appearances keep the same exact structure.
04The design
Interface principle
No decoration without a job.
Sumform borrows from test sheets, instruments, registration marks, and printed systems. The visual language is strict so the moment of solving can feel playful.
SUMFORM / DAILY CALENDAR
Daily no.9877 days before today
Day24MonthAUGYear2026
Every state is visible
Selection, operation, result and completion each have one unmistakable treatment.
Efficiency is honest
The shortest known route sets the standard. Hints help, but never pretend otherwise.
Motion explains
Movement confirms a merge or an error. It never competes with the numbers.
Access is structural
Large targets, clear focus, custom symbols and spoken arithmetic are designed in from the start.
05By the numbers
Maximum Freeplay serial
Deterministic identity space
Every identity can rebuild the same solvable challenge.
06Platforms
Two native contexts
In the hand.
On the wrist.
iPhone
The complete game, Daily ritual, Archive, Freeplay, Stats, and sharing.
Apple Watch
Daily and Freeplay built for quick play, clear controls, and progress on the wrist.
07Questions
Before you ask.
A compact number puzzle. Combine two available values with an operation, return the result to the board, and continue until you reach the exact target.
No. Restraint is part of the puzzle. A valid route can leave values unused as long as every intermediate result is a positive whole number.
The arithmetic is familiar. The real puzzle is sequence, choice and efficiency: which pair now, which operation, and what useful value should remain?
Reach the target in the best known number of moves for three stars. Extra moves earn two. A dead-end Assist alert caps the result at two stars, while requesting a Hint caps it at one. Undo and Restart are free, but they do not remove an assistance cap for that puzzle.
A Streak Pause automatically protects one missed day. Every streak begins with one pause, and seven consecutive Daily completions restore it after use. Two missed days break the streak. Freeplay and Archive never affect or recharge it.
No. Sumform is a one-time purchase with no ads, subscriptions, or in-app purchases.
Yes for play: Daily and Freeplay run on Apple Watch. Completed results synchronise with the iPhone app when the devices reconnect.
One purchase / no ads / no subscriptions
The target is fixed.
The route is yours.
Available now for iPhone and Apple Watch.