Comparison

Stack vs Flippy Knife

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Stack

Test your reflexes in this addictive block-stacking game. Aim for the highest tower possible with simple, beautiful graphics. Compete globally for the top score.

Highlights
  • Block stacking gameplay
  • High score competition
  • Beautiful graphics
  • Global leaderboards
Features
Currently charting
Read full description

Stack up the blocks as high as you can! ◉ Simple & Beautiful graphics designed ◉ Compete for the best score in the world

About

Flippy Knife

Master the art of knife flipping and throwing in this addictive 3D game. Perform combos, hit targets across diverse locations, and collect a vast arsenal of blades. It's a thrilling challenge for those who enjoy precision and risk-taking.

Highlights
  • Physics-based realistic knives
  • Over 120 unique blades
  • 7 different game modes
  • Awesome graphics
  • Award badges
  • Unique game mechanics
Features
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WHAT’S THE GAME ABOUT? Learn how to flip knives like a pro, to make a great combos and never miss! Become a true master of 7 different locations and get a great collection of famous knives, swords, axes and fantasy legends! — more than 30,000,000 downloads; — game of the week in 66 countries; — #1 in the top games in the USA, Russia, Australia, the UK, Canada… WHO’S PLAYING? It’s a game for those who loves knives and thrill! It’s a game for the strong and confident. Be on knife edge, take risks and hit the targets! Pick up a knife and stick it into the target! Do it in FLIPPY KNIFE on the subway or in a lineup for a game, in a coffee shop or park, at school or at work! GAME FEATURES: — more than 120 blades with a cool design; — physics-based realistic knives; — 7 different game modes in one game; — awesome graphics from the pros at Beresnev.Design; — more than 50 great award badges; — unique game mechanics; — high-quality support and super updates! Use the #flippyknife hashtag and the best content will be published on our Instagram account. Like us on our Facebook page or follow us on Instagram: www.facebook.com/BeresnevGames www.instagram.com/flippyknife And remember: skill comes with experience! SUBSCRIPTION PRICING AND TERMS Premium Membership Subscription options, prices and durations: - Weekly Premium Membership for $7,99 offers a weekly subscription after a 3-day free trial for unlocking 15 exclusive knives, getting 1000 coins daily and removing ads. - Monthly Premium Membership for $19,99 offers a monthly subscription for unlocking 15 exclusive knives, getting 1000 coins daily and removing ads. - Yearly Premium Membership for $99,99 offers a yearly subscription for unlocking 15 exclusive knives, getting 1000 coins daily and removing ads. End of trial and subscription renewal: - Payment will be charged to iTunes Account at confirmation of purchase; - Subscription automatically renews with the price and duration period as the original "1 week"/"1 month"/"1 year" package unless auto-renew is turned off at least 24-hours before the end of the current period; - Account will be charged for renewal within 24-hours prior to the end of the current period at the cost of the chosen package (weekly, monthly or annually package); - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's iTunes Account Settings after purchase; - You may cancel a subscription during its free trial period via the subscription setting through your iTunes account. This must be done 24 hours before the end of the subscription period to avoid being charged. Please visit https://support.apple.com/HT202039 for more information. Canceling trial or subscription: - You may turn off the auto-renewal of your subscription via your iTunes Account Settings. However, you are not able to cancel the current subscription during its active period; - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Links to our Terms of Service and Privacy Policy can be found below Terms of Use: https://beresnev.games/termofuse/ For all the questions please contact us at support@beresnev.games * Prices are equal to the value that "Apple's App Store Pricing Matrix" determines as the equivalent of the subscription price in $ USD

Screenshots

Stack4 screens
Flippy Knife4 screens

Verdict

The call

The clearest difference is update cadence: Stack at every 11 days against Flippy Knife's every 5 weeks. Stack also leads on chart position (#139 vs unranked). Flippy Knife's advantage is review sentiment (73% vs 56%). On price, rating, ratings volume and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Stack sells 15 one-off in-app purchases and Flippy Knife sells 12 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Flippy Knife holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 60K and 36K respectively. Written reviews point the same way: 56% of Stack's written reviews are positive against 73% of Flippy Knife's.

UpkeepUpdate frequency

Stack ships an update every 11 days, Flippy Knife every 5 weeks. Both last shipped on October 31, 2026.

Scorecard3 real differences · 8 level
Stack versus Flippy Knife: the parameters behind the verdict, then further details
ParameterStackFlippy Knife
PriceFreeFree
Rating4.4 (60K ratings)4.6 (36K ratings) — better
Positive reviews56.1% of reviews72.6% of reviews — better
Number of ratings60K — better36K
Update frequencyEvery 11 days — betterEvery 5 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#139 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.2
Further details — not scored
Size282 MB272 MB
Age rating12+4+
DeveloperKetchappBERESNEV s.r.o.

Customer experience

Stack

All ratings59,736 ratings
Positive84.8%
Neutral6.8%
Negative8.5%
Written reviews1,827 reviews
Positive56.1%
Neutral10.8%
Negative33.1%

Flippy Knife

All ratings35,552 ratings
Positive91.0%
Neutral4.8%
Negative4.2%
Written reviews709 reviews
Positive72.6%
Neutral7.6%
Negative19.7%

User reviews

Stack

From 60K App Store ratings

What we love

  • 🚀 Fun and addictive
  • 🎨 Aesthetically pleasing graphics
  • 🧘‍♀️ Relaxing and calming
  • 💪 Challenging gameplay

Room to improve

  • 🔍 Too many ads
  • 🐛 Frequent glitches and lags
  • 🔄 Repetitive gameplay

Flippy Knife

From 36K App Store ratings

What we love

  • 🎮 Fun and addictive gameplay
  • 🔍 Wide variety of knives with unique characteristics
  • 🎨 Great visuals and animations
  • 💰 Reasonable monetization model

Room to improve

  • 📺 Excessive ads and ad-related issues
  • 🐛 Bugs and glitches affecting gameplay
  • 🔁 Repetitive and lacking in long-term content
  • 🔒 Difficulty restoring progress after reinstall

Bugs and requests

Stack

Reported bugs

3 issues
  • Blocks disappearing or glitching
  • Game freezing or crashing
  • Inconsistent performance on newer devices

Requested features

4 requests
  • Ability to choose color schemes
  • More variety in block designs
  • Improved high score tracking
  • Reduced ad frequency

Flippy Knife

Reported bugs

4 issues
  • Ads getting stuck or not loading properly
  • Invisible walls and other physics-related issues
  • Account data not syncing or being lost after reinstall
  • Gameplay freezes or crashes on certain devices

Requested features

4 requests
  • Online multiplayer mode
  • Customization options for knives and backgrounds
  • Checkpoint system in Climb mode
  • Improved feedback on achievements and progress

In-app purchases

15 purchases

Stack

One-time15
  • Gem Pack Small$0.99
  • 10 Extra Lives$0.99
  • 200 Gems$0.99
Show 12 more
  • 500 Gems$1.99
  • Gem Pack Medium$2.99
  • 30 Extra Lives$2.99
  • 1000 Gems$2.99
  • Remove Ads$3.99
  • Extra Offline Earnings$4.99
  • Gem Pack Grand$4.99
  • 50 Extra Lives$4.99
  • VIP Pass4 variants$9.99
  • Season Pass2 variants$9.99
  • Gem Pack Mega$9.99
  • Gem Pack Ultra$19.99
12 purchases

Flippy Knife

Subscriptions2
  • PROFESSIONAL CLUB MEMBERSHIP3 Days trial$3.997 Days
  • Premium Membership (1 week)3 Days trial$4.997 Days
One-time10
  • Fantasy Sword$0.99
  • 6 Simple Knives$0.99
  • 11 Knife Makers' Blades$0.99
Show 7 more
  • 2 Cold & 2 Hot Swords$0.99
  • Bad Laser$0.99
  • Medium Pack of Coins$0.99
  • 12 Gift knives$0.99
  • BOOM! missiles$0.99
  • Remove ADS$3.99
  • Self aiming knife$4.99

Questions

Is Stack free?
Stack is free to download, with in-app purchases available.
Is Flippy Knife free?
Flippy Knife is free to download, with in-app purchases available.
Which has better reviews, Stack or Flippy Knife?
Flippy Knife is rated higher. Stack averages 4.4 out of 5 from 60K ratings, while Flippy Knife averages 4.6 from 36K ratings.
Do Stack or Flippy Knife have ads?
Both Stack and Flippy Knife show ads.
Which is updated more often, Stack or Flippy Knife?
Stack ships an update every 11 days, and Flippy Knife every 5 weeks. Most recently, Stack was updated on October 31, 2026 and Flippy Knife on October 31, 2026.

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