Sufuku vs Sumdrop

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Sufuku compared with Sumdrop
Detail	Sufuku	Sumdrop
What it does	A daily logic puzzle where each number repeats as many times as its value	A free, ad-free number-pairing puzzle for iPhone and iPad
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Not given	Free
Pricing	Not given	Not given
Key features	6×6 board with rows, columns and regions Each number appears as many times as its value One solution per puzzle Gold clue numbers New puzzle daily at 2:00 AM	Match numbers that are equal or sum to 10 Daily Puzzle with streak tracking 3 free hints per stage Add numbers feature (5 per stage) Customizable settings including haptics and alerts Dark mode with high contrast options
What makes it different	Pure deduction with no guessing required Progressive difficulty throughout the week Constraint-based puzzle mechanics where numbers repeat by value	No ads, ever Free to play completely Works offline anywhere Accessible design with VoiceOver support
Community votes	0	0
DR (Domain Rating by Ahrefs)	2 −1 (down) since last check	12 −2 (down) since last check
Trust Flow (Majestic)	3	0
Citation Flow (Majestic)	23	0
Referring domains (Majestic)	27	0

3 details filled in for both companies.