# fly knife train vs Diamond Drops

The clearest difference is ads: fly knife train at none against Diamond Drops's shown. fly knife train also leads on iOS requirement (10.0 vs 12.0). Diamond Drops's advantage is update cadence (every 3 days vs every 4 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

fly knife train ships an update every 4 months, Diamond Drops every 3 days. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | fly knife train | Diamond Drops |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | — | Ad-supported |
| Size | 48 MB | 202 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [武跃 方](https://appshunter.io/developer/1216992074) | [fujita ryo](https://appshunter.io/developer/1722037364) |

## What reviewers say

### fly knife train

[App page](https://appshunter.io/ios/app/fly-knife-train/id1531247949)

**Features:** macOS Compatibility

**In-app purchases:** none


### Diamond Drops

[App page](https://appshunter.io/ios/app/diamond-drops/id6474597783)

Engage in an addictive merging puzzle where you combine gems to create dazzling diamonds. Utilize a variety of unique items to navigate challenging levels and test your strategic thinking. Compete for the highest scores and aim for global leaderboard dominance.

**Highlights:** Intuitive drag & drop merging, Evolutionary gem merging system, Strategic item utilization, Global leaderboard competition, Challenging puzzle levels

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is fly knife train free?

fly knife train is free to download, with no in-app purchases.

### Is Diamond Drops free?

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

### Do fly knife train or Diamond Drops have ads?

Diamond Drops shows ads; fly knife train does not.

### Which is updated more often, fly knife train or Diamond Drops?

fly knife train ships an update every 4 months, and Diamond Drops every 3 days. Most recently, fly knife train was updated on November 7, 2026 and Diamond Drops on November 4, 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.*