Fold Meter is a tool rather than a game: it shows the hinge angle of your foldable phone degree by degree. Use it to see how well your phone's motion sensor works, to understand why a game isn't responding or just to measure an angle you are curious about.
How to play
- Open the page and tap the screen once to allow access to the motion sensor.
- Put the phone flat open on a table. The meter finds the starting position.
- Fold the top half slowly: the angle appears on screen in degrees and the arc drawing follows it.
- The raw values from the sensor are shown at the bottom of the screen.
Tips
- If the controls in a game don't respond, check here first that the angle changes.
- If the page isn't opened over a secure connection (https), browsers don't allow access to the motion sensor.
- The measurement assumes the half on the table stays still; moving both halves at once spoils the result.
- If the sensor is in the half lying on the table, the meter tells you; turn the phone over and put the other half down.
How is it measured?
The phone's motion sensor reports the phone's orientation relative to gravity. When one half stays flat on the table and the other half lifts, the tilt of the half that holds the sensor is turned into the hinge angle. Every game in Katla uses this measurement, so the meter is the quickest way to understand problems with the games.
What do you need?
Katla games run in the browser; there is nothing to download or install. The games read the phone's fold angle from its motion sensor, so they play best on foldable phones such as the Galaxy Z Fold and Z Flip. On a phone that doesn't fold you can tilt the phone with your wrist instead of moving the top half, and most games can also be played by tapping the screen. Motion sensors only work over a secure connection (https).
More games
- Fold BasketSports
- GuillotineSkill
- PerspectivePuzzle
- Safe CrackerPuzzle
- Claw MachineSkill
- Fold PinballSkill
- Fold RhythmMusic
- DrawbridgeSkill
- Ski JumpSports
- Rowing RaceSports
- HourglassSkill
- Corner KickSports
- Wind-up CarSkill
- OrigamiCreative
- CurlingSports
- Mini GolfSports
- Fold RunSkill
- Fly TrapSkill
- Water PumpSkill
- Paper PlaneSkill
- Castle CrashAim
- ArcheryAim
- BounceSports
- AccordionMusic