Comparison

Janken Drop vs Stack Tank

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

Head to head
About

Janken Drop

Engage in a unique falling-object puzzle game where rock-paper-scissors determines gameplay. Simple touch controls make it accessible for all ages, offering thrilling moments and a global ranking system.

Highlights
  • Rock-paper-scissors gameplay
  • Simple touch controls
  • Exciting, thrilling moments
  • Consecutive win bonuses
  • Global ranking system
  • Beautiful graphics and music
Features
Read full description

"Janken Drop" is a new falling-object game themed around rock-paper-scissors (known as "janken" in Japan). Players touch the screen to move the falling "hands" left and right, and engage in rock-paper-scissors with the stacked "hands". Despite its simple rules, the game offers exciting and thrilling gameplay. Features: - Simple Controls: Easy to play with just a touch of the screen. Fun for all ages, from children to seniors. - Exciting Gameplay: The outcome of rock-paper-scissors determines whether the "hands" disappear or grow larger, providing thrilling moments. Win consecutively to earn bonus points and aim for a high score. - Beautiful Graphics and Music: Stunning graphics and beautiful music enhance the game's immersive experience. Enjoy both visually and aurally. - Ranking System: Compete with players from around the world. Aim to top various rankings and prove your skills. How to Play: 1. Touch the screen to move the falling "hands" left and right and stack them. 2. When a falling "hand" collides with a stacked "hand", a game of rock-paper-scissors ensues. 3. If the falling "hand" wins, the stacked "hand" disappears and you earn points. Win consecutively for bonus points. 4. If the falling "hand" loses, it grows larger and becomes easier to stack. 5. The game ends when the stack of "hands" reaches the top of the screen. This game is perfect for short play sessions, making it ideal for passing time or taking a break. Despite its simple rules, the game has deep gameplay that will challenge you to aim for the highest score. Download "Janken Drop" now and experience the thrilling world of rock-paper-scissors!

About

Stack Tank

Engage in a roguelike tank survival experience, mowing down hordes of enemies. Acquire and stack new turrets during combat to create a "Moving Fortress" with exponential firepower. Fuse turrets into devastating "Super Weapons" and master diverse mission modes for ultimate stress relief.

Highlights
  • Infinite turret stacking mechanic
  • Infinite evolution and super fusions
  • Diverse mission modes
  • Satisfying grass-cutting action
  • One-finger controls
Features
Read full description

Experience the ultimate adrenaline rush in this Roguelike Tank Survivor game! Mow down endless swarms of enemies, stack your arsenal to new heights, and witness the power of infinite evolution. Key Features: - 【Infinite Turret Stacking】Unlock the Stacking Mechanic! Acquire new turrets during combat and stack them onto your tank. Watch your vehicle transform into a towering "Moving Fortress" with exponential firepower! - 【Infinite Evolution & Super Fusions】 Choose from a massive variety of unique turrets with random upgrades. Reach the peak of evolution by fusing specific combinations into devastating "Super Weapons" to obliterate the screen. - 【Diverse Mission Modes】It's more than just survival! Master intense missions including Push, Tower Siege, Escort, Defense, and Interception. Every stage brings a new challenge to your evolved arsenal. - 【Satisfying Grass-Cutting Action】One-finger controls, infinite excitement! Feel the thrill as your stacked heavy artillery clears thousands of enemies in seconds. The ultimate stress-reliever!

Screenshots

Janken Drop4 screens
Stack Tank4 screens

Verdict

The call

The clearest difference is in-app purchases: Janken Drop at none against Stack Tank's 9. Janken Drop also leads on update cadence (every 2 days vs weekly) and iOS requirement (12.0 vs 15.0). On price, ads and device support 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 Tank sells 9 one-off in-app purchases. Janken Drop asks for nothing beyond the download.

UpkeepUpdate frequency

Janken Drop ships an update every 2 days, Stack Tank weekly. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

Scorecard4 real differences · 6 level
Janken Drop versus Stack Tank: the parameters behind the verdict, then further details
ParameterJanken DropStack Tank
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings—1 — better
Update frequencyEvery 2 days — betterWeekly
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size161 MB114 MB
Age rating4+4+
DeveloperKOJI SUDOShiJiazhuang Rufang Technology Co.,Ltd.

Customer experience

Janken Drop

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Stack Tank

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Janken Drop

No in-app purchases

9 purchases

Stack Tank

One-time9
  • 60 Gems$1.99
  • Unlock Hammer$2.99
  • Unlock Sentinel$2.99
Show 6 more
  • Unlock Ranger$3.99
  • Unlock Vindicator$3.99
  • 330 Gems$4.99
  • 720 Gems$9.99
  • 1600 Gems$24.99
  • 4200 Gems$49.99

Questions

Is Janken Drop free?
Janken Drop is free to download, with no in-app purchases.
Is Stack Tank free?
Stack Tank is free to download, with in-app purchases available.
Do Janken Drop or Stack Tank have ads?
Both Janken Drop and Stack Tank show ads.
Which is updated more often, Janken Drop or Stack Tank?
Janken Drop ships an update every 2 days, and Stack Tank weekly. Most recently, Janken Drop was updated on October 7, 2026 and Stack Tank on October 11, 2026.

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