# Drop Master! vs Purify the World

The clearest difference is in-app purchases: Drop Master! at none against Purify the World's 7. Drop Master! also leads on review sentiment (33% vs 25%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Purify the World sells 7 one-off in-app purchases. Drop Master! asks for nothing beyond the download.

Drop Master! ships an update every 2 months, Purify the World every 5 weeks. The most recent releases landed on June 4, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | Drop Master! | Purify the World |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/purify-the-world/id6739110940/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **33.3% of reviews** | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 85 MB | 301 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Basement Apps, Inc.](https://appshunter.io/developer/1092009455) | [Eureka Studio Inc.](https://appshunter.io/developer/1418633832) |

## What reviewers say

### Drop Master!

[App page](https://appshunter.io/ios/app/drop-master/id6736356638)

Guide the ball to the goal with simple tap controls. Master the timing to overcome surprisingly challenging levels. This game tests your skills and is perfect for those seeking a brain-teasing experience.

**Highlights:** Simple tap controls, Timing-based gameplay, Challenging levels, Goal-oriented progression, Brain-teasing puzzles

**Features:** macOS Compatibility

**In-app purchases:** none


### Purify the World

[App page](https://appshunter.io/ios/app/purify-the-world/id6739110940)

Survive a zombie-infested world by collecting DNA, developing a vaccine, and collaborating with other survivors. Your mission is to cleanse the contaminated land and rebuild society.

**Highlights:** Zombie DNA collection and study, Vaccine creation and deployment, Contaminated surface purification, Cooperative survival gameplay, Post-apocalyptic world exploration

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Handful of Tickets | $1.99 | one-time |
| World Pack 1 | $2.99 | one-time |
| Remove Ads | $3.99 | one-time |
| Bundle of Tickets | $4.99 | one-time |
| World Pack 1 - Before Discount | $9.99 | one-time |
| Stack of Tickets | $14.99 | one-time |
| Mountain of Tickets | $49.99 | one-time |


## Frequently asked questions

### Is Drop Master! free?

Drop Master! is free to download, with no in-app purchases.

### Is Purify the World free?

Purify the World is free to download, with in-app purchases available.

### Do Drop Master! or Purify the World have ads?

Both Drop Master! and Purify the World show ads.

### Which is updated more often, Drop Master! or Purify the World?

Drop Master! ships an update every 2 months, and Purify the World every 5 weeks. Most recently, Drop Master! was updated on June 4, 2026 and Purify the World on September 3, 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.*