Support

Write to hello@stakflow.info and you will get a reply within two business days.

Questions people actually ask

How do I use the Grip Map?

Open any move and drag the timeline under the animation. It follows your finger, forwards or backwards, at whatever speed you move. The play button runs it on its own, the speed button steps through quarter, half and full speed, and Loop step repeats just the part you are stuck on.

What are the gold diamonds on the timeline?

Those are the moments where cards are most often dropped in that particular move. Tap one and the animation jumps there and tells you what usually goes wrong.

Do I need an account?

No. There is nothing to sign up for. Your progress lives on your device from the first launch.

Does it work offline?

Completely. Every move, animation and guide is inside the app, so airplane mode changes nothing.

How do combos work?

Every move in the library is in your palette from the start. In the Combos tab, add moves to the run, drag them into the order you want, and set a tempo. Gold links mean one move ends where the next one starts; grey links still work, you will just square the deck in between. Practice mode runs the combo against the metronome and gives a tap on each change.

Does it cost anything?

No. Knuckleflow is free and complete: all four levels, all thirty moves, as many saved combos as you like, and no subscription, purchase or advertising anywhere in it.

Does the app send me notifications?

Only if you ask for them. Knuckleflow can send one reminder on days you have not practised, and a note when new moves are added — nothing else, and never advertising. The app explains this before iOS asks, and declining changes nothing about how the app works. Turn them on or off later in You → Settings → Reminders, or in iOS Settings.

How do I delete my data?

Settings → Reset progress clears every status, combo, session and badge. Deleting the app removes everything, including the app's storage.

If something is not working

The library did not load

This means the app's own content files could not be read, which usually points at a damaged install. Delete Knuckleflow and install it again. Your practice history cannot be recovered this way, because it only ever existed on the device.

An animation will not open

Tap Try again on the move screen. The written steps below the animation keep working either way. If it keeps failing, reinstall as above.

My progress disappeared after reinstalling

Progress lives in the app's own storage, so deleting the app deletes it. A full device backup made while the app was installed will bring it back when restored; there is no cloud copy, by design.

The metronome is silent

Check the Metronome sound toggle in Settings, then your device's silent switch and volume. Haptics keep marking the beat even with sound off.

Reporting something else

Tell us what you were doing, which move or screen it happened on, and your iOS version. That is usually enough to find it.