# Idle Defense Octopus Evolution vs Dolphin Evolution

The clearest difference is ads: Idle Defense Octopus Evolution at none against Dolphin Evolution's shown. Idle Defense Octopus Evolution also leads on iOS requirement (9.0 vs 15.0). Dolphin Evolution's advantage is review sentiment (93% vs 74%). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Idle Defense Octopus Evolution sells 10 one-off in-app purchases and Dolphin Evolution sells 16 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for Idle Defense Octopus Evolution against 4.7 for Dolphin Evolution. Both are backed by a comparable volume of ratings — 1.9K and 807 respectively. Written reviews are what separate them: 74% of Idle Defense Octopus Evolution's written reviews are positive against 93% of Dolphin Evolution's.

Idle Defense Octopus Evolution ships an update every 3 weeks, Dolphin Evolution every 6 weeks. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Idle Defense Octopus Evolution | Dolphin Evolution |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (1.9K ratings)](https://appshunter.io/ios/app/idle-defense-octopus-evolution/id985708741/reviews) | **[4.7 (807 ratings)](https://appshunter.io/ios/app/dolphin-evolution/id1262502663/reviews)** |
| Number of ratings | **1.9K** | 807 |
| Positive reviews | 73.6% of reviews | **93.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 55 MB | 126 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Tran Anh Khoa](https://appshunter.io/developer/703562127) | [TPG TECNOLOGIA DA INFORMACAO LTDA](https://appshunter.io/developer/444343830) |

## What reviewers say

### Idle Defense Octopus Evolution

[App page](https://appshunter.io/ios/app/idle-defense-octopus-evolution/id985708741)

Evolve a mutant octopus by collecting DNA and gems to unlock new arms and super weapons. Defend against enemies with easy-to-learn touch controls and enjoy cartoon graphics with rock music. Share your progress and discover new features in this unique tower defense experience.

**Highlights:** Evolve mutant octopus with new arms and weapons, Easy touch-and-hold gameplay, Cartoon graphics and rock music, Unlock shark, dragon, and other arms, Utilize frozen, armor, and nuclear weapons, Share game records on social media

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DNA Pack 1 | $0.99 | one-time |
| Gem Pack 1 | $0.99 | one-time |
| DNA Pack 2 | $1.99 | one-time |
| Remove Ads | $1.99 | one-time |
| DNA Pack 3 | $2.99 | one-time |
| DNA Pack 4 | $3.99 | one-time |
| DNA Pack 5 | $4.99 | one-time |
| Gem Pack 5 | $4.99 | one-time |
| DNA Pack 10 | $9.99 | one-time |
| DNA Pack 20 | $19.99 | one-time |

**What reviewers like**

- 👍 Fun game
- 🚀 Addictive gameplay
- 💡 Unique concept
- 😊 Great for kids

**What reviewers complain about**

- 🐛 Frequent crashes
- 🔒 Copyright issues
- 🔋 High ad frequency
- 🤯 Too difficult

**Reported bugs**

- DNA points disappearing
- Restart cost too high
- Levels not loading properly
- Ads not working as intended

**Requested features**

- Add more upgrades and customization options
- Improve level difficulty progression
- Reduce in-app purchase requirements
- Fix grammar and spelling errors


### Dolphin Evolution

[App page](https://appshunter.io/ios/app/dolphin-evolution/id1262502663)

Combine different dolphin species to create new mutations and achieve ocean domination. Tap to earn coins, unlock new creatures, and discover a mind-blowing story with multiple endings. This idle clicker game offers a unique evolutionary journey with doodle-like illustrations.

**Highlights:** Combine similar dolphins to create new species, Unlock new creatures and earn coins, Discover different stages and dolphin species, Experience a story with fishy twists, Multiple possible endings, Idle clicker gameplay

**Features:** macOS Compatibility

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pack of rubies | $1.99 | one-time |
| Hard Currency Pack 1 | $1.99 | one-time |
| pack with diamonds | $1.99 | one-time |
| Remove Ads | $1.99 | one-time |
| Shop Bundle | $2.99 | one-time |
| Promo Bundles Very High | $2.99 | one-time |
| Hard Currency Pack 2 | $4.99 | one-time |
| big pack of rubies | $5.99 | one-time |
| Shop Bundle | $5.99 | one-time |
| Trinket | $6.99 | one-time |
| starter bundle discount | $9.99 | one-time |
| Hard Currency Pack 3 | $9.99 | one-time |
| premium bundle discount | $9.99 | one-time |
| Hard Currency Pack 4 | $19.99 | one-time |
| veteran bundle discount | $19.99 | one-time |
| starter bundle | $24.99 | one-time |

**What reviewers like**

- 👍 Fun and entertaining game
- 💙 Cute and adorable dolphins
- 🤩 Addictive and engaging gameplay
- 🌈 Customizable dolphin colors
- 🎨 Enjoyable evolution process

**What reviewers complain about**

- 🐛 Occasional crashes and glitches
- 💤 Slow progression at times
- 📺 Excessive advertisements
- 🤔 Some dolphins look strange

**Reported bugs**

- Purchased items disappearing after game restart
- Invisible colors on certain dolphin levels
- Game freezing after reaching new evolution stages

**Requested features**

- More levels and evolution stages
- Additional customization options
- Improved performance and stability
- Reduced advertisements or ad-free version


## Frequently asked questions

### Is Idle Defense Octopus Evolution free?

Idle Defense Octopus Evolution is free to download, with in-app purchases available.

### Is Dolphin Evolution free?

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

### Which has better reviews, Idle Defense Octopus Evolution or Dolphin Evolution?

Dolphin Evolution is rated higher. Idle Defense Octopus Evolution averages 4.6 out of 5 from 1.9K ratings, while Dolphin Evolution averages 4.7 from 807 ratings.

### Do Idle Defense Octopus Evolution or Dolphin Evolution have ads?

Dolphin Evolution shows ads; Idle Defense Octopus Evolution does not.

### Which is updated more often, Idle Defense Octopus Evolution or Dolphin Evolution?

Idle Defense Octopus Evolution ships an update every 3 weeks, and Dolphin Evolution every 6 weeks. Most recently, Idle Defense Octopus Evolution was updated on October 7, 2026 and Dolphin Evolution on October 10, 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.*