# Doodle Sub vs Agent Runner 3D

The clearest difference is update cadence: Doodle Sub at every 4 weeks against Agent Runner 3D's every 2 months. Doodle Sub also leads on iOS requirement (7.0 vs 12.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Doodle Sub sells 1 one-off in-app purchase and Agent Runner 3D sells 10 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Doodle Sub ships an update every 4 weeks, Agent Runner 3D every 2 months. The most recent releases landed on October 3, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Doodle Sub | Agent Runner 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/doodle-sub/id816337743/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 214 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | iPhone, iPad, iPod, Apple TV | iPhone, iPad, iPod, Apple TV |
| Age rating | 4+ | 4+ |
| Developer | [Stewart Thomson](https://appshunter.io/developer/816337746) | [Mayaavi](https://appshunter.io/developer/1740500258) |

## 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 |


### Agent Runner 3D

[App page](https://appshunter.io/ios/app/agent-runner-3d/id6749265650)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| unlock weekly subscription | $4.99 | per 7 days |
| unlock monthly subscription | $9.99 | per month |
| unlock quarterly subscription | $14.99 | per 3 months |
| unlock annual subscription | $19.99 | per year |
| unlock no ads | $1.99 | one-time |
| Unlock Kiki | $3.99 | one-time |
| Unlock Runubis | $4.49 | one-time |
| unlock 4 characters | $4.99 | one-time |
| Unlock all characters | $7.99 | one-time |
| unlock full game | $9.99 | one-time |


## Frequently asked questions

### Is Doodle Sub free?

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

### Is Agent Runner 3D free?

Agent Runner 3D is free to download, with in-app purchases available.

### Do Doodle Sub or Agent Runner 3D have ads?

Neither Doodle Sub nor Agent Runner 3D shows ads.

### Which is updated more often, Doodle Sub or Agent Runner 3D?

Doodle Sub ships an update every 4 weeks, and Agent Runner 3D every 2 months. Most recently, Doodle Sub was updated on October 3, 2026 and Agent Runner 3D on September 21, 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.*