# UNION ARENA Tutorial App vs Grimoria

The clearest difference is update cadence: Grimoria at every 4 days against UNION ARENA Tutorial App's every 3 months. UNION ARENA Tutorial App's advantage is iOS requirement (11.0 vs 15.0). On price, ads, 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.

UNION ARENA Tutorial App ships an update every 3 months, Grimoria every 4 days. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | UNION ARENA Tutorial App | Grimoria |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (32 ratings)](https://appshunter.io/ios/app/union-arena-tutorial-app/id6578425605/reviews)** | — |
| Number of ratings | **32** | — |
| Positive reviews | 90.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 216 MB | 82 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [BANDAI Co., Ltd.](https://appshunter.io/developer/359834423) | [Cosimo Alfredo Pina](https://appshunter.io/developer/1448283440) |

## What reviewers say

### UNION ARENA Tutorial App

[App page](https://appshunter.io/ios/app/union-arena-tutorial-app/id6578425605)

Learn the rules and strategies of a new trading card game. This app offers tutorial modes to grasp basic gameplay and free battle modes to practice with different decks. Experience the excitement of the game with guided learning.

**Highlights:** Learn basic rules, Tutorial Mode, Free Battle Mode, Practice with decks, Experience trading card game

**In-app purchases:** none


### Grimoria

[App page](https://appshunter.io/ios/app/grimoria/id6771330946)

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

**In-app purchases:** none


## Frequently asked questions

### Is UNION ARENA Tutorial App free?

UNION ARENA Tutorial App is free to download, with no in-app purchases.

### Is Grimoria free?

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

### Do UNION ARENA Tutorial App or Grimoria have ads?

Neither UNION ARENA Tutorial App nor Grimoria shows ads.

### Which is updated more often, UNION ARENA Tutorial App or Grimoria?

UNION ARENA Tutorial App ships an update every 3 months, and Grimoria every 4 days. Most recently, UNION ARENA Tutorial App was updated on October 16, 2026 and Grimoria on October 5, 2026.

---

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