Ink Flow - One Line Puzzle
by 株式会社RHKT
· Games
· Free
On the App Store since October 2026
· Data updated
Ink Flow - One Line Puzzle is made and published by 株式会社RHKT. AppBrain is an independent app data site and isn't affiliated with 株式会社RHKT. The app name, icon, screenshots and description belong to 株式会社RHKT and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- October 23, 2026
Rankings
App Store top chartsApp Store Rankings for Ink Flow - One Line Puzzle
This app is not ranked
Competitors
Similar apps and more from 株式会社RHKTAlternatives to Ink Flow - One Line Puzzle
Releases
Updates seen on the App Store- Version
- 1.5.0
- Launched
- October 2026
No changelog data
User feedback
Ratings and reviews on the App StoreComments on Ink Flow - One Line Puzzle for iOS
We don't have enough comments to show example comments. Please check back later.
Technology
Found in the app by AppBrain- Price
- Free
- App size
- 29.6 MB
- Content rating
- Everyone
Technologies used by Ink Flow - One Line Puzzle
About the app and developer
About Ink Flow - One Line Puzzle
Ink Flow - One Line Puzzle is a games app developed by 株式会社RHKT.
What is the rating of Ink Flow - One Line Puzzle?
Ink Flow - One Line Puzzle has no ratings yet.
Is Ink Flow - One Line Puzzle free?
Ink Flow - One Line Puzzle is free. The app size is 29.61 MB. The latest version available is 1.5.0. The last update was on October 23, 2026.
What are the requirements for Ink Flow - One Line Puzzle?
The app has a content rating of Everyone. The app has been available on the App Store since October 2026.
Developer information for 株式会社RHKT
Address:
Store listing
By 株式会社RHKT, from the App Store
Screenshots by 株式会社RHKT, from the the App Store listing
Description by 株式会社RHKT Written by the developer, not by AppBrain. Click to read.
One line. Every cell.
There is only one rule. Start where the seal is, pass through every cell on the board exactly once, and finish on the star. That is all.
A seal that paints rainbows
As you draw, a little seal rides at the tip of your line and leaves a rainbow behind. Finish the board and it cheers with you.
Dress up your seal
Unlock outfits as you play: Wizard, Painter, Headband, Bunny ears, Nightcap and King. Change them anytime in Settings.
Daily stamps and the seal's room
Get a stamp each day you open the app. Every 7 stamps earns a piece of furniture for your seal's room — drag it anywhere you like.
Christmas special
Play between Dec 1 and Dec 25 to get a Santa outfit.
In the 240 stages and Today's Line, nothing hurries you. No timer, no lives, no notifications. Stop and think, trace back and start over — nobody minds.
Numbers, in order
From stage 21, numbered cells appear. Pass them 1, 2, 3… in order while still covering every cell exactly once.
Squares and diamonds
From stage 28 another rule joins in. A square must be passed straight through; a diamond must be turned on. Together they let you read the shape of the answer before you draw a single line.
240 stages
From gentle 4×4 boards to 9×9 boards with real bite. Every stage has been checked to be solvable, and chosen so the solutions do not sprawl. No stage can be finished by scribbling.
Sound
Each cell you pass raises the note by one step, so the pitch climbs as you solve. Behind it, an ambient loop that never breaks. Every sound was made from scratch for this app — you will not hear it anywhere else. Best with headphones.
Today's Line
One puzzle a day, the same one for everyone. Solve it and the day is recorded; keep going and the streak builds.
Rush
How many can you solve in 60 seconds? Small boards come one after another, and each solve gives a little time back. Keep solving without backtracking and your combo grows — the sound and the feel grow with it. Another way to play, for the days you want speed.
Daily Rush and leaderboards
Every day, everyone gets the same run of boards. Compare your score with players around the world and with friends on the Game Center leaderboards.
Line colors
Milestones unlock new colors for your line: Vermilion, Gold, Lapis, Rainbow.
Seals
Finish a stage without a hint and it earns a vermilion seal. Can you stamp all 240? A reason to return to stages you have already solved.
Calendar and titles
Every Today's Line you solve fills in a calendar, month by month. Finished chapters, seals collected, days in a row — seventeen titles mark the milestones.
Six themes
Strawberry, Soda, Melon, Peach, Dream, Orange. From bright pastels to a starry night-sky purple. Switch whenever you like.
Nothing interrupts the solving
No ads sit on the board. Nothing cuts in while your finger is on the line.
Free to play. The first 30 stages are free; the remaining 210 open with a single payment. The same purchase removes every ad and unlocks all six themes. There is no subscription. The purchase also lets you solve the days you missed, from the calendar.
There is only one rule. Start where the seal is, pass through every cell on the board exactly once, and finish on the star. That is all.
A seal that paints rainbows
As you draw, a little seal rides at the tip of your line and leaves a rainbow behind. Finish the board and it cheers with you.
Dress up your seal
Unlock outfits as you play: Wizard, Painter, Headband, Bunny ears, Nightcap and King. Change them anytime in Settings.
Daily stamps and the seal's room
Get a stamp each day you open the app. Every 7 stamps earns a piece of furniture for your seal's room — drag it anywhere you like.
Christmas special
Play between Dec 1 and Dec 25 to get a Santa outfit.
In the 240 stages and Today's Line, nothing hurries you. No timer, no lives, no notifications. Stop and think, trace back and start over — nobody minds.
Numbers, in order
From stage 21, numbered cells appear. Pass them 1, 2, 3… in order while still covering every cell exactly once.
Squares and diamonds
From stage 28 another rule joins in. A square must be passed straight through; a diamond must be turned on. Together they let you read the shape of the answer before you draw a single line.
240 stages
From gentle 4×4 boards to 9×9 boards with real bite. Every stage has been checked to be solvable, and chosen so the solutions do not sprawl. No stage can be finished by scribbling.
Sound
Each cell you pass raises the note by one step, so the pitch climbs as you solve. Behind it, an ambient loop that never breaks. Every sound was made from scratch for this app — you will not hear it anywhere else. Best with headphones.
Today's Line
One puzzle a day, the same one for everyone. Solve it and the day is recorded; keep going and the streak builds.
Rush
How many can you solve in 60 seconds? Small boards come one after another, and each solve gives a little time back. Keep solving without backtracking and your combo grows — the sound and the feel grow with it. Another way to play, for the days you want speed.
Daily Rush and leaderboards
Every day, everyone gets the same run of boards. Compare your score with players around the world and with friends on the Game Center leaderboards.
Line colors
Milestones unlock new colors for your line: Vermilion, Gold, Lapis, Rainbow.
Seals
Finish a stage without a hint and it earns a vermilion seal. Can you stamp all 240? A reason to return to stages you have already solved.
Calendar and titles
Every Today's Line you solve fills in a calendar, month by month. Finished chapters, seals collected, days in a row — seventeen titles mark the milestones.
Six themes
Strawberry, Soda, Melon, Peach, Dream, Orange. From bright pastels to a starry night-sky purple. Switch whenever you like.
Nothing interrupts the solving
No ads sit on the board. Nothing cuts in while your finger is on the line.
Free to play. The first 30 stages are free; the remaining 210 open with a single payment. The same purchase removes every ad and unlocks all six themes. There is no subscription. The purchase also lets you solve the days you missed, from the calendar.