# Janken Drop vs Stack Tank

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.

Both are free to download. Stack Tank sells 9 one-off in-app purchases. Janken Drop asks for nothing beyond the download.

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.

## The numbers

| Metric | Janken Drop | Stack Tank |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stack-tank/id6761960546/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 161 MB | 114 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KOJI SUDO](https://appshunter.io/developer/788978781) | [ShiJiazhuang Rufang Technology Co.,Ltd.](https://appshunter.io/developer/1553736315) |

## What reviewers say

### Janken Drop

[App page](https://appshunter.io/ios/app/janken-drop-fun-falling-game/id6503416631)

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:** macOS Compatibility

**In-app purchases:** none


### Stack Tank

[App page](https://appshunter.io/ios/app/stack-tank/id6761960546)

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:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 60 Gems | $1.99 | one-time |
| Unlock Hammer | $2.99 | one-time |
| Unlock Sentinel | $2.99 | one-time |
| Unlock Ranger | $3.99 | one-time |
| Unlock Vindicator | $3.99 | one-time |
| 330 Gems | $4.99 | one-time |
| 720 Gems | $9.99 | one-time |
| 1600 Gems | $24.99 | one-time |
| 4200 Gems | $49.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*