# Hungry Hippo Attack Simulator vs Undulations

The clearest difference is price: Hungry Hippo Attack Simulator at Free against Undulations's $4.99. Undulations's advantage is in-app purchases (none vs 6) and update cadence (every 2 months vs every 13 months). On ads, device support and iOS requirement there is nothing between them.

Hungry Hippo Attack Simulator is free to download; Undulations costs $4.99 up front. Hungry Hippo Attack Simulator sells 6 one-off in-app purchases. Undulations asks for nothing beyond the download.

Hungry Hippo Attack Simulator ships an update every 13 months, Undulations every 2 months. Both last shipped on October 13, 2026.

## The numbers

| Metric | Hungry Hippo Attack Simulator | Undulations |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.5 (106 ratings)](https://appshunter.io/ios/app/hungry-hippo-attack-simulator/id1058452720/reviews)** | — |
| Number of ratings | **106** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 87 MB | 238 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [PLASMA IT SOLUTIONS](https://appshunter.io/developer/1044059071) | [HULABREAKS](https://appshunter.io/developer/307659914) |

## What reviewers say

### Hungry Hippo Attack Simulator

[App page](https://appshunter.io/ios/app/hungry-hippo-attack-simulator/id1058452720)

Experience the thrill of being a powerful hippopotamus in this simulation game. Hunt humans on the beach, evolve, and survive in a wild African environment. Features 3 action-packed stages with stunning 3D graphics.

**Highlights:** Simulate a huge real hippo, 3 action-packed stages, 10 stages per stage, Amazing 3D graphics, Rampage and adventure gameplay

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get 1000 Coins | $0.99 | one-time |
| Get 2000 Coins | $1.99 | one-time |
| Unlock All Hippos | $2.99 | one-time |
| Unlock all levels | $2.99 | one-time |
| Remove all ads | $2.99 | one-time |
| Unlock full game | $5.99 | one-time |


### Undulations

[App page](https://appshunter.io/ios/app/undulations/id6475134781)

**In-app purchases:** none


## Frequently asked questions

### Is Hungry Hippo Attack Simulator free?

Hungry Hippo Attack Simulator is free to download, with in-app purchases available.

### Is Undulations free?

Undulations costs $4.99, with no in-app purchases.

### Do Hungry Hippo Attack Simulator or Undulations have ads?

Neither Hungry Hippo Attack Simulator nor Undulations shows ads.

### Which is updated more often, Hungry Hippo Attack Simulator or Undulations?

Hungry Hippo Attack Simulator ships an update every 13 months, and Undulations every 2 months. Most recently, Hungry Hippo Attack Simulator was updated on October 13, 2026 and Undulations on October 13, 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.*