Updated for iOS 7. Thanks for your patience.

iStack sport stacking (aka: cup stacking, speed stacking)

iStack® is the official Speed Stacks sport stacking game (also known as cup stacking or speed stacking) for iPhone and iPod Touch. Approved by the World Sport Stacking Association (WSSA), iStack lets you stack anywhere.

Test your finger stacking skills with one of the three WSSA competition stacks; the 3-3-3, 3-6-3, or the challenging Cycle Stack. iStack’s built-in StackMat works just like the real thing by timing your stacking and storing your 10 fastest times for each of the 3 stacks. The iStack timer can even be used to time yourself when stacking with real Speed Stacks cups.

So your best stacking times can be compared with others, iStack only allows you to stack using the official WSSA sequences but once you have finished the stack, the game goes into free stack mode, which allows you to play around and practice your moves.

iStack has fun sound effects, cool graphics, and lets you choose your cup color and StackMat design. And if your not sure how to do any of the 3 official stacks, just select one of the six Speed Stacks stacker training sessions from the setup screen (Internet connection required).

What’s New

Version 3.00

Thanks for your patience in waiting for this update.
1. Now compatible with iOS 7.
2. Now a universal application that runs natively in iPad, iPhone and iPod.
3. Added achievements.
4. New cup colors
5. New logo colors
6. Cup and Logo randomizer
7. Bug Fixes

Ratings and Reviews

3.8 out of 5
37 Ratings

37 Ratings

Wolverine21601 ,

Good but needs work

It is a really good app but the 3-6-3 stack is locked and don't know how to unlock and cycle is also locked plz fix that

Lora10!!!! ,

Thank you!!!!!!!

I think this app is great for stacking!!!!!!! Thank you soooooo much for the update so it won't crash on iOS 0.7.0!!!!Good job and you are lucky i am paticent!!!!

jonathanalexandern ,


Can you please update This game to work on iOS 11 please thank you have a wonderful day Godspeed


Sean Flanagan
26.5 MB

Requires iOS 4.3 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2011 Sean Flanagan


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