# Zombie Idle vs Slippery Dog

The clearest difference is ads: Zombie Idle at none against Slippery Dog's shown. Zombie Idle also leads on update cadence (every 3 weeks vs every 17 months) and iOS requirement (7.0 vs 15.0). 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.

Zombie Idle ships an update every 3 weeks, Slippery Dog every 17 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Zombie Idle | Slippery Dog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (7 ratings)](https://appshunter.io/ios/app/zombie-idle/id1399172064/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 17 months |
| Monetization | Free | — |
| Size | 120 MB | 181 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | +12 |
| Developer | [RedLine Games](https://appshunter.io/developer/1050165849) | [Macaca Games Inc.](https://appshunter.io/developer/1278612016) |

## What reviewers say

### Zombie Idle

[App page](https://appshunter.io/ios/app/zombie-idle/id1399172064)

Become the ultimate survivor in this idle game. Upgrade your weapons and characters to defeat zombies and earn cash. Progress through the game by continuously improving your defenses and offensive capabilities.

**Highlights:** Idle gameplay mechanics, Weapon and survivor upgrades, Zombie combat, Cash income generation, Survivor progression

**Features:** macOS Compatibility

**In-app purchases:** none


### Slippery Dog

[App page](https://appshunter.io/ios/app/slippery-dog/id6670784113)

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

**In-app purchases:** none


## Frequently asked questions

### Is Zombie Idle free?

Zombie Idle is free to download, with no in-app purchases.

### Is Slippery Dog free?

Slippery Dog is free to download, with no in-app purchases.

### Do Zombie Idle or Slippery Dog have ads?

Slippery Dog shows ads; Zombie Idle does not.

### Which is updated more often, Zombie Idle or Slippery Dog?

Zombie Idle ships an update every 3 weeks, and Slippery Dog every 17 months. Most recently, Zombie Idle was updated on November 6, 2026 and Slippery Dog 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.*