# ER Companion vs MasterDex

ER Companion and MasterDex both sit at 4.7 stars, but that hides the real split: 87% of MasterDex's written reviews are positive against 72% of ER Companion's. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. ER Companion sells 10 in-app purchases, starting at $2.49 per month and MasterDex sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for ER Companion against 4.8 for MasterDex. Both are backed by a comparable volume of ratings — 2.9K and 1.8K respectively. Written reviews are what separate them: 72% of ER Companion's written reviews are positive against 87% of MasterDex's.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | ER Companion | MasterDex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (2.9K ratings)](https://appshunter.io/ios/app/er-companion/id1612963915/reviews) | **[4.8 (1.8K ratings)](https://appshunter.io/ios/app/masterdex-complete-guide/id1621464261/reviews)** |
| Number of ratings | **2.9K** | 1.8K |
| Positive reviews | 71.8% of reviews | **86.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 294 MB | 196 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Sebastian Kruse](https://appshunter.io/developer/1199925370) | [Lorenzo Greco](https://appshunter.io/developer/480768196) |

## What reviewers say

### ER Companion

[App page](https://appshunter.io/ios/app/er-companion/id1612963915)

An unofficial offline map and guide for Elden Ring, detailing the locations of enemies, dungeons, items, and more. Track collectibles with a checklist and filter map icons for easy navigation. An in-app purchase unlocks advanced build planning and stat calculation features.

**Highlights:** Offline Elden Ring map, Location tracking for enemies, dungeons, and items, Detailed item descriptions, Collectible checklist, Map icon filtering, iCloud data sync, Build planning and stat calculator (IAP)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fully unlock all our apps | $2.49 | per month |
| Fully unlock all our apps | $5.99 | per 3 months |
| Fully unlock all our apps | $9.99 | per 6 months |
| Fully unlock all our apps | $14.99 | per year |
| Gear and Build Planner | $0.99 | one-time |
| Items & Recipes | $0.99 | one-time |
| Unlock Guides | $0.99 | one-time |
| Unlock all content | $1.99 | one-time |
| Remove Ads | $2.99 | one-time |
| Unlock all | $3.99 | one-time |

**What reviewers like**

- 🚀 Helpful app
- 👍 Great companion for Elden Ring
- 👍 Useful checklist and map features
- 👍 Detailed information on items and locations
- 👍 Constantly updated

**What reviewers complain about**

- 🐛 Crashes and bugs
- 🔒 Subscription-based model for full access
- 🔒 Locking features behind paywall
- 🌐 Lack of language support (e.g. French, Spanish, Russian)

**Reported bugs**

- Map icons and text not rendering
- Checklist progress getting reset
- Crashes on startup after updates

**Requested features**

- Add quest tracking
- Improve map filtering and organization
- Provide more detailed descriptions and guides
- Allow renaming of save slots
- Add split-screen support for tablets


### 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


## Frequently asked questions

### Is ER Companion free?

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

### Is MasterDex free?

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

### Which has better reviews, ER Companion or MasterDex?

MasterDex is rated higher. ER Companion averages 4.7 out of 5 from 2.9K ratings, while MasterDex averages 4.8 from 1.8K ratings.

### Do ER Companion or MasterDex have ads?

Both ER Companion and MasterDex show ads.

### Which is updated more often, ER Companion or MasterDex?

ER Companion ships an update every 3 weeks, and MasterDex every 3 weeks. Most recently, ER Companion was updated on October 30, 2026 and MasterDex on October 30, 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.*