# MasterDex vs ARK Unity for ASA

The clearest difference is review sentiment: MasterDex at 87% against ARK Unity for ASA's 37%. MasterDex also leads on rating (4.8 vs 4.5) and ratings volume (1.7K vs 397). ARK Unity for ASA's advantage is in-app purchases (none vs 2) and update cadence (every 4 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. MasterDex sells 2 one-off in-app purchases. ARK Unity for ASA asks for nothing beyond the download.

MasterDex holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 1.7K and 397 respectively. Written reviews point the same way: 87% of MasterDex's written reviews are positive against 37% of ARK Unity for ASA's.

MasterDex ships an update every 3 weeks, ARK Unity for ASA every 4 days. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | MasterDex | ARK Unity for ASA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.7K ratings)](https://appshunter.io/ios/app/masterdex-complete-guide/id1621464261/reviews)** | [4.5 (397 ratings)](https://appshunter.io/ios/app/ark-unity-for-asa/id6471382557/reviews) |
| Number of ratings | **1.7K** | 397 |
| Positive reviews | **86.6% of reviews** | 36.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 196 MB | 20 MB |
| Requires iOS | 16.6 | **13.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lorenzo Greco](https://appshunter.io/developer/480768196) | [NX SOFTWARE](https://appshunter.io/developer/1765487106) |

## What reviewers say

### MasterDex

[App page](https://appshunter.io/ios/app/masterdex-complete-guide/id1621464261)

This app serves as a comprehensive guide for fans and trainers, offering detailed information on creatures, team building, and the trading card game. It features offline access, advanced search, and tracking for favorite creatures and shinies, updated for the latest generation.

**Highlights:** Updated creature information, Team builder tool, Trading Card Game details, Offline functionality, Shiny creature tracker, Advanced search filters

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Masteredex - Sale | $1.99 | one-time |
| Masterdex PRO | $2.99 | one-time |

**What reviewers like**

- 🚀 Fantastic app
- 👍 Great Pokédex
- 🔒 No ads
- 💡 One-time purchase
- 👍 Aesthetically pleasing

**What reviewers complain about**

- 🐛 Crashing and slow loading
- 🐛 Bugs with team builder
- 🐛 Missing Pokémon forms and gender differences
- 🐛 Incorrect or outdated information
- 💡 Lack of Pokémon location filters

**Reported bugs**

- Shiny toggle not working in team builder
- Pokémon 3D models and artwork not displaying
- Johto region locations missing
- Crashes when adding Pokémon to teams
- Incorrect information for some Pokémon (e.g., Necrozma's ability, Pikachu's classification)

**Requested features**

- Add Pokémon location filters
- Implement ability to mark Pokémon as caught/seen
- Add damage calculator
- Allow reorganizing of teams
- Include Pokémon cries and Dynamax/Gigantamax forms


### ARK Unity for ASA

[App page](https://appshunter.io/ios/app/ark-unity-for-asa/id6471382557)

This app provides a comprehensive suite of tools and information for ARK: Survival Ascended and ARK: Survival Evolved players. It includes calculators for taming, breeding, and XP, along with detailed creature info, spawn maps, and crafting guides to enhance gameplay.

**Highlights:** Taming Calculator, Breeding Calculator, XP Calculator, Creature Information, Spawn Maps, Resource Maps, Crafting Calculator

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Helpful app
- 🚀 Useful information
- 💡 Detailed dinosaur data
- 👍 Good for taming
- 👍 Well-organized information

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 🔍 Confusing navigation
- 🌐 Lack of language support
- 💰 Aggressive advertising
- 🤔 Doesn't actually let you play the game

**Reported bugs**

- Can't access or join maps
- Timers and taming information inaccurate
- Crashes and freezes frequently

**Requested features**

- Add ability to view maps directly in the app
- Improve performance and stability
- Implement Japanese language support
- Provide an ad-free paid version


## Frequently asked questions

### Is MasterDex free?

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

### Is ARK Unity for ASA free?

ARK Unity for ASA is free to download, with no in-app purchases.

### Which has better reviews, MasterDex or ARK Unity for ASA?

MasterDex is rated higher. MasterDex averages 4.8 out of 5 from 1.7K ratings, while ARK Unity for ASA averages 4.5 from 397 ratings.

### Do MasterDex or ARK Unity for ASA have ads?

Both MasterDex and ARK Unity for ASA show ads.

### Which is updated more often, MasterDex or ARK Unity for ASA?

MasterDex ships an update every 3 weeks, and ARK Unity for ASA every 4 days. Most recently, MasterDex was updated on October 17, 2026 and ARK Unity for ASA on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*