GentleflowStudio

Apps worth
keeping.

Eight apps across iOS, Android and HarmonyOS. No ads, no accounts, nothing you did not ask for.

01 / puzzle

Ninefold

25,000 puzzles. No ceiling.

  • iOS
  • Android
  • HarmonyOS

Five difficulty tracks, a daily puzzle you can go back and replay by any date, and a Hell mode that keeps going after Expert runs out. Every board is checked for a single solution before it ships, so you are never left guessing.

puzzles
5,000 per track
daily
replayable by date
ads
none
Open Ninefold

02 / puzzle

Kudoku

Killer sudoku, taught from zero.

  • iOS
  • Android
  • HarmonyOS

Cage sums, notes that know which cage they sit in, and an onboarding that walks you from plain sudoku into killer in one sitting. 25,000 boards from easy to master, in twenty languages.

puzzles
25,000
tracks
easy → master
languages
20
Open Kudoku

03 / puzzle

Sweeple

Minesweeper, without the coin flip.

  • iOS
  • HarmonyOS

Three hundred hand-built levels, every one of them solvable by logic alone — the last square is never a coin flip you lose at 4:59. The classic endless boards are here too. Offline, no ads, no account.

levels
300, hand-built
guessing
never required
network
not used
Open Sweeple

04 / puzzle

Arvia

One rule. The boards do the rest.

  • iOS

Every arrow pushes the next one along. Get the order wrong and the board locks. The rules fit on a napkin; the boards forty levels in do not. One solution each, and hints only if you ask for them.

rules
one
solution
exactly one
hints
only if you ask
Open Arvia

05 / tool

Airclap

Files across the room, not the planet.

  • iOS
  • Android
  • macOS
  • Windows

Phone to Mac, Mac to PC, over the Wi-Fi you are already on. No account, no cloud round trip, no upload bar to sit and watch. #1 Product of the Day on Product Hunt, in forty languages.

route
the Wi-Fi you are on
account
not needed
product hunt
#1 of the day
Open Airclap

06 / place

Locary

Pin a memory to where you stood.

  • iOS
  • HarmonyOS

A diary that opens with the place instead of the date. One rule built all of it: standing somewhere, one hand, thirty seconds. Six months later you walk down the same street and the street remembers for you.

one entry
under 30 seconds
you can keep
photo · voice · music · mood
your data
stays on the phone
Open Locary

07 / tool

GT Alarm

An alarm that knows it's Saturday.

  • iOS

Schedules that follow the working week, skip public holidays on their own, and stay quiet on a day you booked off. Set it once and stop thinking about it.

the week
it knows which days
holidays
skipped on their own
setup
once
Open GT Alarm

08 / tool

mydots

Catch the thought before it leaves.

  • iOS

One field. No folder to pick, no title to write, no tag to choose — open it, type, and you are out. Structure is something you can add later, on the day you actually want it.

fields
one
to write one down
two taps
folders
none
Open mydots