# Cat'n'Robot vs Finding Zer0

The clearest difference is in-app purchases: Finding Zer0 at none against Cat'n'Robot's 11. Finding Zer0 also leads on ads (none vs shown) and update cadence (every 2 days vs every 3 weeks). Cat'n'Robot's advantage is iOS requirement (11.0 vs 16.0). On price and device support there is nothing between them.

Both are free to download. Cat'n'Robot sells 11 one-off in-app purchases. Finding Zer0 asks for nothing beyond the download.

Cat'n'Robot ships an update every 3 weeks, Finding Zer0 every 2 days. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Cat'n'Robot | Finding Zer0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.9K ratings)](https://appshunter.io/ios/app/catnrobot-idle-defense/id1373663771/reviews)** | — |
| Number of ratings | **1.9K** | — |
| Positive reviews | 81.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 134 MB | 35 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dino Go Corp](https://appshunter.io/developer/1187534072) | [Huy Nguyen](https://appshunter.io/developer/1815929205) |

## What reviewers say

### Cat'n'Robot

[App page](https://appshunter.io/ios/app/catnrobot-idle-defense/id1373663771)

Command a growing army of cat warriors and powerful robots to defend your kingdom from monsters. Strategize with unique gadgets, mighty heroes, and various unit types to overcome epic battles and reclaim castles. Engage in online PvP, clan wars, and challenging quests.

**Highlights:** Unique gadgets with special abilities, Upgradeable archers and mighty heroes, Diverse creeps and bosses to defeat, Castle conquering and reclaiming, Equipment crafting system, Quest and fame system, Online PvP, Arena, and Clan War

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin 1 | $0.99 | one-time |
| Gem 1 | $0.99 | one-time |
| Early Offer 1 | $0.99 | one-time |
| Coin 2 | $1.99 | one-time |
| Gem 2 | $1.99 | one-time |
| Starter Pack | $2.99 | one-time |
| Chest Pack | $2.99 | one-time |
| Hero Sharkice | $3.99 | one-time |
| Coin 3 | $4.99 | one-time |
| Coin 4 | $9.99 | one-time |
| Special pack | $9.99 | one-time |

**What reviewers like**

- 👍 Fun and enjoyable game
- 🚀 Addictive gameplay
- 🤖 Unique cat-themed tower defense concept
- 💡 Interesting gadgets and upgrades
- 👍 Great for passing time

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 🔒 Account and progress issues (bans, resets, etc.)
- 💰 Monetization concerns (ads, in-app purchases)
- 🔧 Unclear mechanics and lack of instructions
- 🕹️ Repetitive gameplay at higher levels

**Reported bugs**

- Cheating detection issues leading to bans
- Progress and data loss
- Freezing and crashing on certain actions
- Inconsistent or broken in-game mechanics
- Compatibility problems on some devices

**Requested features**

- More content and updates
- Improved account management and data transfer
- Reduced ads and better monetization model
- Additional gameplay modes and features
- Better tutorial and in-game explanations


### Finding Zer0

[App page](https://appshunter.io/ios/app/finding-zer0-math-puzzle-game/id6798571085)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cat'n'Robot free?

Cat'n'Robot is free to download, with in-app purchases available.

### Is Finding Zer0 free?

Finding Zer0 is free to download, with no in-app purchases.

### Do Cat'n'Robot or Finding Zer0 have ads?

Cat'n'Robot shows ads; Finding Zer0 does not.

### Which is updated more often, Cat'n'Robot or Finding Zer0?

Cat'n'Robot ships an update every 3 weeks, and Finding Zer0 every 2 days. Most recently, Cat'n'Robot was updated on October 27, 2026 and Finding Zer0 on October 31, 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.*