Download StackO apk 1.9 free for Android smartphone

29 Apr

Posted by Acetone Designs in Word | April 29, 2014 | 54 Comments

Apk file size: 12.0 MB

StackO - A Scrabble-like Word Game of Skill, Strategy and Speed

StackO is a unique, smooth, quirky, and intelligent word game which is capturing the imagination of Android gamers. If nothing, it will definitely improve your vocabulary.

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Given limited stacks of letters, you have to strategically make words to maximize your game score within a limited time. The games can be played in either easy, medium or hard mode.

You can challenge your facebook friends and other random opponents for Head to Head games. Each head to head game consists of 1 round and can be played whenever you've time.

Tap on the letter tiles on a game board to make valid words containing at least 3 letters. With special tiles, bonuses for long words and penalties for 3 letter words, the game is about using the tiles in the most judicious way to maximize your score.

Board Clearance Bonus, Extra Tiles and Time Remaining Bonus add an extra element of fun and strategy to the game.

Unlock achievements and brag about them on Twitter and Facebook.

Can you outscore others?

Whats new

    Version 1.9 includes:
    # Swipe to Refresh function on the Main Screen for quick updates on Challenges
    # Performance Optimization

Acetone Designs part of our Word and have average installs from 10000 to 50000. Last Update April 29, 2014. Google play rating is 80.1784. Current verison is 1.9. Actual size 12.0 MB.

Download stacko.apk 12.0 MB


Niccolo Bentulan

Mindless fun Think up words from your vocabulary as you look around the board. Probably best to get pro to see solutions to learn how to play better.

Ajay Sharma

Impressive A very engaging game that keeps you on your toes.Along the way helping me to improve my vocabulary. Just in a couple of days my six year old daughter is also addicted to the game and it's not easu to get the phone back from her.

Michele Thielke

Fun and Helpful I love this game! Super fun yet challenging! Never have any problems.

Neoli Marcos

Non responsive design renders the text and other touch elements sooo tiny on the screen. Typing isnt smooth. Avatars are fugly. And occupies a good chunk of 20 mb ram on my phone. Still, this is an enjoyable game with a nice online combat element. Just wish theyd overhaul the UI.

She Billings

!!!! Best game I have found and love it! Just wish the makers would listen to us and stop the cussing making innocent words appear as swearwords! Causes awkward confusion!

Tessa K

Love it! What a great game! I've always loved word games, but this one sticks out. It's challenging but fun. I also love the personality you bring into it (especially the cute panda during the tutorial!) There is just one thing I would really love to see: practice mode. I don't like always being timed. Sometimes (more often than not, honestly) I would just like to play a laid-back game and get my bearings. I would so very much appreciate it, and probably play more often! Keep up the good work, devs!!

ginger knows

Good game I like it. Its easy enough to be fun and challenging enough to be interesting. I would prefer to be able to choose which level to play instead of going through the whole solo or random opponent thing every time, and it seems kind of slow to load. I paid for the game just to support the creators, because I think that's a good thing to do if you can.

Jeanie Gray

Great game Love this game minus the list of "waiting for" people. Why doesnt this list ever expire or why isnt there anyway for me to clear it? Thats the only bad thing about this game...


My go-to game for when I'm bored A simple game, but really fun. I play this so much I decided to just pay for the extra stuff to support the creators, and to learn stupid big words that shouldn't exist. The only issue is notifications that seldom work, which I don't mind since I tend to play so many strangers it would be going off non-stop.

Lee Andrews

Addictive Simple but compelling. Beautifully rendered: the best looking game I've ever installed.

Diane Mihyu

Great overall except few words not accepted organized, great graphics & a sense of humor. Like scrabble except u dont need to attach the words. I dont like scrabble much, but I like this game. I was disappointed to see that a few words werent accepted. For example "zen" wasnt accepted and that is a major word not to accept cuz there arent many words that use the letter z. I hope I dont come across more words that r not accepted Im testing it, if I dont come across other words that arent accepted Ill buy + praise or criticism at end disappears quickly

Nive V

Great word game, rather addictive. To the devs: it didn't recognise my draws or 5 consecutive wins against opponents for the soulmate or conquest achievements. Guess it's just a bug or perhaps I'm mistaken how it works.

Bridget Moran

Great game.. cant get enough This is a really addictive game. I like how you have the main game but also personal achievements as well. Also can you PLEASE make it compatible with apple so I can play my friends.

Kourtni Roucoulet

Very fun I love this game a lot. I got my mom addicted to it too. I love that even after playing it for a few months, it is still challenging. Only downside is that even though I have the notification settings turned on, I never get notifications. I got a notification once but that's it. Anyway, great game!!!

E Centimetres

Why would a word game ask me for my gender, and then address me as though I'm the opposite sex? Weird little detail which spoils an otherwise professional-feeling app

Alyssa Oquendo

Great game! I really like this game. No complaints from me. Great way to kill time.

Matt Fritch

Best app game to date!! This is one of the best games I have played since buying an Android phone. Easy to play but too addicting to put down. Bravo!

Annie Robbins

Brain workout Want to stimulate your brain? Try Stacko. No repeats on letter boards or attempt to sell you something in ads or in app purchases.

Akshay Chougaonkar

Amazing! Love this game. Great execution. Simple, hassle free and addictive. Great job guys!

David Thurling

Stacko Great way to kill a few free minutes. Hard to stop playing.

Mehul Furia

Loving it Seriously fun and brain stimulating game, but lately I have found the same stack of letters appear making the game predictable. It would be great if the devs provide different combinations of letters on all the levels.

Prashant Tiwari

Excellent Game U'll ever have U can't be bored with this.

Mohit Prabhu

Awesome game... Really addictive Can't imagine a day without playing it... Challenges you daily.

Lutfi Hanafi

Great game! Simple yet challenging. Fun game to play on quiet day. No ads is a big plus!

Geoffrey Dias

Very addictive The Conquest achievement somehow thinks that 42 wins is less than 10, but this very minor bug doesn't take away the fact that this game is hard to put down. Highly recommended.

Vasavi A

Loved it!! This game is awesome!! I am addicted to it of late. A lil bit of disappointment though: Monday, Tuesday.. aren't valid words :(

Mridula R

super an actually challenging word game! I installed it and opened it to play, 4 hours flew by and I didn't notice. ?

Tvara Misra

The interface is a little slow. But then it's a fun game!

Cate Cowan

Good Love this game. Just wish it had more players...always have to wait if you choose to play a random opponent. And the touch sensitivity could be better. Often times touching the tile will just move it and not select it which slows down your playing.

Siddharth Mutyala

Indulging One of the best word games I've used till date. Best when played with friends.

Naleen Devineni

Best word game ever. Great game.... very addictive. Please add more achievement levels....

Beth carrus

A fun twist on word games I would like more opponents readily available but the game is really fun.

matt Unruh

Fantastic word game. It's unfortunate my friends don't play it.

Bobo Bogdan

Very good I really like the game very much

TrainingAgent Kevin

Crazy addicting! So simple but so addicting to play! Love that it has both single player and head to head challenge modes. Developer is really responsive to emails as well.

Mrigaen Kapadia

Nice one Loved the game. U guys should consider launching it an ios version as well.

Rehma Javed

Love the game. Simple and addictive. Playing to get the stargrazer. Though there seems to be a bug. I have won 28 games against a player but I'm not getting the fourth star for conquest.

Lisa Jackson

Great app! Easy to use, good graphics!

Tra Zaidon

Why cant it invite friends from fb? Please fix :)

Prateem Savaskar

Great game I love this game...the achievements sure make me play more..! Good job..!

Matthew Karns

Error every time I try to log in Facebook says I've already approved the game but every time I try to login it throws an error. I'm not creating a new account for yet another app.

Neoli Marcos

Nonresponsive design renders the text and other touch elements sooo tiny on the screen. Typing isnt smooth. And occupies a good chunk of 20 mb ram on my phone. (Of course this is more an issue with my outdated phone, I realize) Still, this is an enjoyable game with a nice online combat element. Just wish theyd improve the UI.

Vinita Bijur

Addictive and fun! I enjoy this game a lot, and I think it's really well made! Kudos guys. My only suggestion would be to make your language a bit gender neutral :) right now at the end of each game I still get messages like "great going bro!" Or "be nimble, man!" That doesn't stop me from playing the game, but still, something to consider maybe?

She Billings

Stop asking me to review you!!!!! I am finding the boards are becoming very repetitive and players seem to be dwindling. This app needs some TLC! It is also very sexist in that all the 'funny' quips are aimed at men! Hello! Women here!

Vasavi A

Loved it!! This game is awesome!! I am addicted to it of late. A lil bit of disappointment though: Monday, Tuesday.. aren't valid words :(

Trey Cooper

Perfect For making those 15 minute bathroom breaks on company time speed right on by!

She Billings

Great game Sadly not enough players

Marcus Agard

Best game Possibly the best word game available for mobile devices. So much fun!

Avi Pandey

Racist and stupid Doesnt contain half the words in the world including india or hindu..very dissappointing and extremely annoying. Very dumb n stupid apart from the racism even

Heena Tariq

Amazing! I love this app and ended up learning crazy words from it! I literally have no complains :D

Mridula R

super an actually challenging word game! I installed it and opened it to play, 4 hours flew by and I didn't notice. ?

Prashant Tiwari

Unable to login with Facebook Please fix this

debra terrio

Sooo much fun. Win some. Loose some. All fun! Still challenging and fun. Have introduced others to this game, and they are instantly intrigued.


Nice game It is very good game but at the end of the game they should suggest some high scoring words.

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