# Birds Evolution Merge vs Drop Stack Ball

The clearest difference is in-app purchases: Drop Stack Ball at none against Birds Evolution Merge's 14. Drop Stack Ball also leads on update cadence (every 2 weeks vs every 5 weeks) and iOS requirement (12.0 vs 15.0). Birds Evolution Merge's advantage is rating (4.7 vs 4.5). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Birds Evolution Merge sells 14 one-off in-app purchases. Drop Stack Ball asks for nothing beyond the download.

Birds Evolution Merge holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 851 and 2K respectively. Written reviews complicate that: 87% of Birds Evolution Merge's written reviews are positive against 91% of Drop Stack Ball's, so the app with the better star average is not the one people write more warmly about.

Birds Evolution Merge ships an update every 5 weeks, Drop Stack Ball every 2 weeks. The most recent releases landed on September 6, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Birds Evolution Merge | Drop Stack Ball |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (851 ratings)](https://appshunter.io/ios/app/birds-evolution-merge/id1171392372/reviews)** | [4.5 (2K ratings)](https://appshunter.io/ios/app/drop-stack-ball/id1510506950/reviews) |
| Number of ratings | 851 | **2K** |
| Positive reviews | 87.4% of reviews | **91.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 156 MB | 75 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [TPG TECNOLOGIA DA INFORMACAO LTDA](https://appshunter.io/developer/444343830) | [Ashima Prabhakar](https://appshunter.io/developer/1469698741) |

## What reviewers say

### Birds Evolution Merge

[App page](https://appshunter.io/ios/app/birds-evolution-merge/id1171392372)

Combine various bird species to evolve them into new, bizarre forms. Explore different stages, unlock curious creatures, and discover unexpected endings in this evolutionary merge game. Earn coins through bird poop to buy more creatures and accelerate your progress.

**Highlights:** Combine similar birds to create new creatures, Evolve birds to discover exotic forms, Use bird poop coins to buy new creatures, Discover different stages and bird species, Unlock various possible endings, Incremental clicker gameplay

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Hard Currency Pack 1 | $1.99 | one-time |
| pack with diamonds | $1.99 | one-time |
| pack of rubies | $1.99 | one-time |
| instant coins doubler | $1.99 | one-time |
| Promo Bundles VeryHigh | $2.99 | one-time |
| Shop Bundle 1 | $2.99 | one-time |
| Hard Currency Pack 2 | $4.99 | one-time |
| big pack of rubies | $5.99 | one-time |
| income doubler | $5.99 | one-time |
| Shop Bundle 2 | $5.99 | one-time |
| Trinket | $6.99 | one-time |
| Hard Currency Pack 3 | $9.99 | one-time |
| starter bundle discount | $9.99 | one-time |

**What reviewers like**

- 💎 Addictive and fun gameplay
- 🎨 Ability to customize birds
- 🐦 Variety of bird species
- 🎶 Enjoyable music

**What reviewers complain about**

- 🔍 Repetitive gameplay
- 🛑 Excessive ads
- 🐛 Bugs and crashes
- 🔊 Music interruption issues

**Reported bugs**

- Inability to change bird colors
- Incorrect pricing in the store
- Game crashing after updates

**Requested features**

- More bird species and evolution stages
- Ability to listen to music while playing
- Improved performance and stability


### Drop Stack Ball

[App page](https://appshunter.io/ios/app/drop-stack-ball/id1510506950)

Control a falling ball through colorful, nerve-racking stack structures. This game tests your speed and focus with breathtaking challenges and cute graphics. Get ready for a fun and engaging experience.

**Highlights:** Control falling objects, Bright and colorful stacks, Nerve-racking stack structures, Breathtaking gameplay, Cute and amazing graphics

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

**In-app purchases:** none

**What reviewers like**

- 👍 Fun and entertaining
- 🚀 Works offline
- 💡 Minimal ads
- 👍 Relaxing and satisfying gameplay

**What reviewers complain about**

- 🐛 Occasional glitches and bugs
- 🔋 Can get boring after a while

**Reported bugs**

- Game freezing and crashing
- Levels resetting unexpectedly

**Requested features**

- More skin/character options
- Improved performance and stability


## Frequently asked questions

### Is Birds Evolution Merge free?

Birds Evolution Merge is free to download, with in-app purchases available.

### Is Drop Stack Ball free?

Drop Stack Ball is free to download, with no in-app purchases.

### Which has better reviews, Birds Evolution Merge or Drop Stack Ball?

Birds Evolution Merge is rated higher. Birds Evolution Merge averages 4.7 out of 5 from 851 ratings, while Drop Stack Ball averages 4.5 from 2K ratings.

### Do Birds Evolution Merge or Drop Stack Ball have ads?

Both Birds Evolution Merge and Drop Stack Ball show ads.

### Which is updated more often, Birds Evolution Merge or Drop Stack Ball?

Birds Evolution Merge ships an update every 5 weeks, and Drop Stack Ball every 2 weeks. Most recently, Birds Evolution Merge was updated on September 6, 2026 and Drop Stack Ball on September 26, 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.*