# Drift And Merge! vs UnderAttack

The clearest difference is in-app purchases: Drift And Merge! at none against UnderAttack's 9. Drift And Merge! also leads on update cadence (daily vs every 4 months) and iOS requirement (11.0 vs 16.4). On price and device support there is nothing between them.

Both are free to download. UnderAttack sells 9 one-off in-app purchases. Drift And Merge! asks for nothing beyond the download.

Drift And Merge! ships an update daily, UnderAttack every 4 months. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Drift And Merge! | UnderAttack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | **Daily** | Every 4 months |
| Size | 108 MB | 88 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kubra Gundogan](https://appshunter.io/developer/1494003935) | [OGULCAN SACLI](https://appshunter.io/developer/1855149869) |

## What reviewers say

### Drift And Merge!

[App page](https://appshunter.io/ios/app/drift-and-merge/id1664143096)

**Features:** macOS Compatibility

**In-app purchases:** none


### UnderAttack

[App page](https://appshunter.io/ios/app/underattack-idle-td/id6756351933)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50 Gem | $0.99 | one-time |
| 130 Gem | $1.99 | one-time |
| Starter Pack | $2.99 | one-time |
| Adventurer Bundle | $4.99 | one-time |
| 350 Gem | $4.99 | one-time |
| 650 Gem | $7.99 | one-time |
| Veteran Pack | $9.99 | one-time |
| Dreadnought | $9.99 | one-time |
| 1500 Gem | $14.99 | one-time |


## Frequently asked questions

### Is Drift And Merge! free?

Drift And Merge! is free to download, with no in-app purchases.

### Is UnderAttack free?

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

### Which is updated more often, Drift And Merge! or UnderAttack?

Drift And Merge! ships an update daily, and UnderAttack every 4 months. Most recently, Drift And Merge! was updated on October 27, 2026 and UnderAttack on October 30, 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.*