# Doodle Sub vs Tankoom

The clearest difference is in-app purchases: Tankoom at none against Doodle Sub's 1. Tankoom also leads on rating (5.0 vs 4.6). Doodle Sub's advantage is update cadence (every 4 weeks vs every 3 months) and iOS requirement (7.0 vs 14.0). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Doodle Sub sells 1 one-off in-app purchase. Tankoom asks for nothing beyond the download.

Tankoom holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 5 and 3 respectively.

Doodle Sub ships an update every 4 weeks, Tankoom every 3 months. The most recent releases landed on September 15, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | Doodle Sub | Tankoom |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (5 ratings)](https://appshunter.io/ios/app/doodle-sub/id816337743/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/tankoom/id6450196525/reviews)** |
| Number of ratings | **5** | 3 |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 17 MB | 386 MB |
| Requires iOS | **7.0** | 14.0 |
| Devices | iPhone, iPad, iPod, Apple TV | iPhone, iPad, iPod, Apple TV |
| Age rating | 4+ | 12+ |
| Developer | [Stewart Thomson](https://appshunter.io/developer/816337746) | [Orion Arcade LLC](https://appshunter.io/developer/1676539634) |

## What reviewers say

### Doodle Sub

[App page](https://appshunter.io/ios/app/doodle-sub/id816337743)

Navigate a submarine through a treacherous minefield tunnel. Compete with friends on leaderboards and unlock achievements. Experience addictive gameplay with stunning graphics and immersive sound.

**Highlights:** Submarine navigation through minefields, Retina graphics, Game Center leaderboards, Achievements, See friends' scores, Twitter/Facebook integration, iCloud Sync

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Tankoom

[App page](https://appshunter.io/ios/app/tankoom/id6450196525)

Pilot a tank to defend your land from an invading army. Engage in fast-paced combat, dodge enemy fire, and destroy obstacles to outmaneuver your opponents. Enjoy local multiplayer with up to four players.

**Highlights:** Real-time tank control, Up to 4 local multiplayer, Campaign mode, Deathmatch mode, Action-packed combat, Unlockable levels, Gamepad controller support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Doodle Sub free?

Doodle Sub is free to download, with in-app purchases available.

### Is Tankoom free?

Tankoom is free to download, with no in-app purchases.

### Which has better reviews, Doodle Sub or Tankoom?

Tankoom is rated higher. Doodle Sub averages 4.6 out of 5 from 5 ratings, while Tankoom averages 5.0 from 3 ratings.

### Do Doodle Sub or Tankoom have ads?

Neither Doodle Sub nor Tankoom shows ads.

### Which is updated more often, Doodle Sub or Tankoom?

Doodle Sub ships an update every 4 weeks, and Tankoom every 3 months. Most recently, Doodle Sub was updated on September 15, 2026 and Tankoom on August 18, 2026.

---

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