# Dinosaur Assassin vs T Rex Evolution Open World Sim

The clearest difference is rating: Dinosaur Assassin at 3.6 against T Rex Evolution Open World Sim's 1.0. Dinosaur Assassin also leads on ratings volume (40 vs 1) and iOS requirement (13.0 vs 15.0). T Rex Evolution Open World Sim's advantage is update cadence (every 3 months vs every 6 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Dinosaur Assassin sells 8 one-off in-app purchases and T Rex Evolution Open World Sim sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Dinosaur Assassin holds the better App Store score, 3.6 against 1.0. That said, the two scores are not equally well evidenced: Dinosaur Assassin has 40 ratings behind it against 1, so its average is the more settled of the two.

Dinosaur Assassin ships an update every 6 months, T Rex Evolution Open World Sim every 3 months. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Dinosaur Assassin | T Rex Evolution Open World Sim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (40 ratings)](https://appshunter.io/ios/app/dinosaur-assassin-evolution/id665733862/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/t-rex-evolution-open-world-sim/id1506633753/reviews) |
| Number of ratings | **40** | 1 |
| Positive reviews | 67.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 115 MB | 341 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 9+ |
| Developer | [Jurassic Apps](https://appshunter.io/developer/1677042538) | [Asif Naeem](https://appshunter.io/developer/1467501226) |

## What reviewers say

### Dinosaur Assassin

[App page](https://appshunter.io/ios/app/dinosaur-assassin-evolution/id665733862)

Embark on a thrilling hunting adventure across prehistoric and wild worlds. Arm yourself with a variety of weapons and vehicles to track down deadly dinosaurs and other creatures. Survive by day, hunt by night, and compete with other players in this immersive simulator.

**Highlights:** Single Player & Online Multiplayer, Play as an Animal, Variety of Weapons (Pistol Crossbow, Bow, Rifle), Multiple Travel Options (Motorbike, 4x4, Boat, Horse), Campfire Building and Resource Gathering, Night Hunting with Night Vision Goggles, Diverse Jurassic, Ice Age, and Safari Worlds

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Handful of Sunga's - 10 | $0.99 | one-time |
| Satchel of Sunga's - 20 | $1.99 | one-time |
| Backpack of Sunga's - 45 | $2.99 | one-time |
| Golden Bone | $2.99 | one-time |
| Chest of Sunga's - 100 | $3.99 | one-time |
| Cart of Sunga's - 300 | $9.99 | one-time |
| Wagon of Sunga's - 1000 | $14.99 | one-time |
| Shed of Sunga's - 3000 | $40.99 | one-time |

**What reviewers like**

- 👍 Great game overall
- 🤩 Amazing graphics
- 🎮 Fun gameplay
- 🌎 Large open world
- 🦖 Cool dinosaurs

**What reviewers complain about**

- 💰 Hard to earn money
- 🌃 Very dark at night
- 🐛 Game crashes
- 🐛 Game freezes
- 🐛 In-game purchases problematic

**Reported bugs**

- Purchased items disappeared
- Game crashes when shooting hippo/gorilla
- Game crashes when encountering monkey/gorilla
- Game crashes on loading
- In-game purchase gave wrong amount of stones

**Requested features**

- Add animals from Trophy Hunt
- More animals
- Better camera adjustment
- Designated area for sand worm or make it optional
- Add Trophy Hunt Island and animals


### T Rex Evolution Open World Sim

[App page](https://appshunter.io/ios/app/t-rex-evolution-open-world-sim/id1506633753)

Explore a dangerous island as a human, then evolve into a powerful T-Rex. Complete missions like driving trucks, rescuing dinosaurs, and managing a sanctuary. Experience dynamic gameplay that shifts between predator action and strategic park management.

**Highlights:** Evolve into a T-Rex, Drive transport trucks, Rescue trapped dinosaurs, Manage a dinosaur sanctuary, Open-world exploration, Predator action gameplay

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10k Diamonds | $2.99 | one-time |
| Remove Ads | $2.99 | one-time |
| Unlock All Vehicles | $9.99 | one-time |
| Unlock All Levels | $9.99 | one-time |


## Frequently asked questions

### Is Dinosaur Assassin free?

Dinosaur Assassin is free to download, with in-app purchases available.

### Is T Rex Evolution Open World Sim free?

T Rex Evolution Open World Sim is free to download, with in-app purchases available.

### Which has better reviews, Dinosaur Assassin or T Rex Evolution Open World Sim?

Dinosaur Assassin is rated higher. Dinosaur Assassin averages 3.6 out of 5 from 40 ratings, while T Rex Evolution Open World Sim averages 1.0 from 1 ratings.

### Do Dinosaur Assassin or T Rex Evolution Open World Sim have ads?

Both Dinosaur Assassin and T Rex Evolution Open World Sim show ads.

### Which is updated more often, Dinosaur Assassin or T Rex Evolution Open World Sim?

Dinosaur Assassin ships an update every 6 months, and T Rex Evolution Open World Sim every 3 months. Most recently, Dinosaur Assassin was updated on October 8, 2026 and T Rex Evolution Open World Sim on October 2, 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.*