# Deck Builder for Union Arena — Build, Share, and Discover > Union Arena TCG deck builder, card manager, and community sharing tool. (iPhone/iPad app by Nicholas Martin Geil.) - Source: https://appshunter.io/ios/app/deck-builder-for-union-arena/id6563139619 (this page in markdown: same URL + `.md`) - Developer: [Nicholas Martin Geil](https://appshunter.io/developer/1757209176) - Category: Games, Utilities, Card, Strategy - Price: Free with in-app purchases - Rating: 4.45/5 from 44 App Store ratings · 11 written reviews indexed - Age rating: 9+ - Requires: iOS 15.1 · 80 MB - Languages: English - Released: 2024-08-19 - Data updated: 2026-08-19 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/deck-builder-for-union-arena/id6563139619/reviews.md ## What is Deck Builder for Union Arena? Note: This app is not affiliated with or endorsed by the official Union Arena game publishers or Bandai Card Games. It is a fan-made companion app designed to enhance your gaming experience. Deck Builder for Union Arena: Your Ultimate Union Arena TCG Companion and official partner of TCGPlayer! See the TCGPlayer value of any card, deck, or collection. Buy any card or deck, including net decks, right from the app. Dive into the world of Union Arena with the most comprehensive deck-building and card management app available! Key Features: • Browse and search through an extensive card database • Build and manage your decks with ease • Scan your physical cards to quickly add them to your collection • Share your decks and discover new strategies from the community • High-quality card images for an immersive experience • Offline access to your entire collection Whether you're a seasoned pro or just starting out, Union Arena Decks is your go-to tool for mastering the game. With our intuitive interface, you can effortlessly create, edit, and analyze your decks to gain the competitive edge. Exclusive Pro Features: • Ad-free experience • Advanced deck analysis tools • Priority support Stay ahead of the competition with real-time updates on new card releases and meta shifts. Our app syncs across devices, ensuring your collection is always up-to-date and accessible. Join thousands of Union Arena enthusiasts and take your game to the next level. Download Union Arena Decks now and unleash your strategic potential! Terms of Service: https://unionarenadecks.com/markdown-page?page=terms-of-service Privacy Policy: https://unionarenadecks.com/markdown-page?page=privacy-policy EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Extensive card database - Deck building and management - Card scanning for collection - Community deck sharing - TCGPlayer value integration - Offline collection access ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Union Arena Pro | $4.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Remove All Ads | $4.99 | one-time | ## Recent user reviews (10 of 11) All indexed reviews: https://appshunter.io/ios/app/deck-builder-for-union-arena/id6563139619/reviews.md ### 5/5 — My Favorite Union Deck Builder *2026-02-25* Fantastic app. Makes it super easy to filter through different series and look up alt arts. I like the ease and simplicity of using this for deck building especially since another big website overcomplicated and ruined their own user interface a few months ago. The one thing missing is that the TCG prices are not regularly updated. Currently, most card prices on the app are nearly 4 months old. Newer series don’t show a price at all. The app does provide a direct TCG Player link on each card, but I like having the price shown for each card in the app for ease of use. If the app continues to show a price though, I would like to see it updated more regularly, even something like once a week. If the prices stay 4 months old I would rather they got rid of them and just kept the bare link. If they update that one feature and I didn’t have to switch back and forth between multiple apps, this would definitely be 5 stars. Regardless, I tell my friends to use this app and I recommend you get the ad free version Update: Thank you for the developer response, price issue has been fixed and working well lately! Great app! **Developer response:** 😮 I didn’t realize the prices stopped updating. I have fixed the issue on the backend, all prices should now be up to date and stay up to date, updating daily. Thank you for the report! ### 1/5 — Maybe incompatible, maybe bad? *2026-02-18* Every time I try to make a deck, the app won’t let me add any cards to it. It keeps saying I have no compatible decks to put them in even after I make multiple decks with the required series as the selection. Maybe it’s just incompatible with iPhones, but a deck builder that you can’t use to build a deck kinda defeats the purpose in my opinion. ### 4/5 — My Favorite Union Deck Builder *2026-01-25* Fantastic app. Makes it super easy to filter through different series and look up alt arts. I like the ease and simplicity of using this for deck building especially since another big website overcomplicated and ruined their own user interface a few months ago. The one thing missing is that the TCG prices are not regularly updated. Currently, most card prices on the app are nearly 4 months old. Newer series don’t show a price at all. The app does provide a direct TCG Player link on each card, but I like having the price shown for each card in the app for ease of use. If the app continues to show a price though, I would like to see it updated more regularly, even something like once a week. If the prices stay 4 months old I would rather they got rid of them and just kept the bare link. If they update that one feature and I didn’t have to switch back and forth between multiple apps, this would definitely be 5 stars. Regardless, I tell my friends to use this app and I recommend you get the ad free version **Developer response:** 😮 I didn’t realize the prices stopped updating. I have fixed the issue on the backend, all prices should now be up to date and stay up to date, updating daily. Thank you for the report! ### 5/5 — Amazing *2025-03-23* It’s been amazing. I make my decks then I buy them. Simple as 1,2,3. There was a bug and the developer fixed it. Thank you much love and plus ultra **Developer response:** You’re right! I’ve resolved all issues with the online deck viewing in the latest version (1.1.19). Thanks for the report. Plus Ultra my friend. ### 5/5 — Amazing but… *2025-03-12* It’s been amazing but recently when I open up other people’s decks the app keeps crashing, please fix this because I love this app so much and I want to use it still, but it has been harder recently. Thank you much love and plus ultra ### 1/5 — Crashing issue *2025-03-05* Every time I tap in a deck to view. The app just crashes. **Developer response:** Hello Franklin! Could you hit the “Contact Support” button in settings? It will auto attach logs so I can see exactly what’s happening and resolve the issue for you. :) ### 1/5 — Don’t bother *2025-02-19* I understand it’s fan made but it uses A.I . 90% of my scans were incorrect. Only can scan ten cars free 5$ for only 250 cards a month. That isn’t a lot at all for a collector. So I don’t see the point of it . ### 1/5 — Terrible deck building *2025-01-05* The app doesn’t allow for a seamless experience of inputting cards in their amount or exporting the deck list as well. The navigation is terrible for adding cards as well as you can’t separate by sets either **Developer response:** All of these features are available to you by going to “My Decks” and hitting edit on one of those decks. :) ### 5/5 — Awesome *2024-08-31* The Deck Builder app is a fantastic tool for trading card game enthusiasts, offering an intuitive interface and a comprehensive, up-to-date card database. The drag-and-drop feature makes deck building effortless, while the robust search and filter options allow users to quickly find the perfect cards. It’s an invaluable resource for refining strategies. Overall, this app enhances the deck-building experience, making it a must-have for both casual players and serious competitors. ### 5/5 — Looks Great. Easy to Use *2024-08-19* Been looking forward to learning Union Arena. Great companion tool for playing the JP cards before the NA release. 👍 ## Frequently asked questions about Deck Builder for Union Arena ### Is Deck Builder for Union Arena an official app? No, this app is a fan-made companion and is not affiliated with or endorsed by the official Union Arena game publishers or Bandai Card Games. ### What are the Pro features in Deck Builder for Union Arena? The Pro features include an ad-free experience, advanced deck analysis tools, and priority support. These are available through a subscription. ### How much does the Union Arena Pro subscription cost? The Union Arena Pro subscription is priced at $4.99 per month. ### Can I build decks offline with Deck Builder for Union Arena? Yes, the app offers offline access to your entire card collection, allowing you to build and manage decks even without an internet connection. ### What is the age rating for Deck Builder for Union Arena? The app is rated for ages 9 and up, making it suitable for younger players and adults interested in the game. ### On which devices can I use Deck Builder for Union Arena? Deck Builder for Union Arena is supported on iPhone, iPad, and iPod devices. ### How often is Deck Builder for Union Arena updated? The app was last updated on August 4, 2025, indicating regular updates to add new card releases and meta shifts. ### Can I buy cards or decks directly from Deck Builder for Union Arena? Yes, you can buy any card or deck, including net decks, directly from the app through its integration with TCGPlayer. ## Version history (last 5 releases) ### 1.2.30 — 2025-08-04 Bugfixes and performance increases ### 1.2.20 — 2025-03-29 This release brings bug fixes related to TCGPlayer pricing and buy boxes ### 1.2.19 — 2025-03-21 This version includes critical bug fixes that resolve app crashes when opening certain online decks ### 1.2.17 — 2025-02-13 This release contains the latest bug fixes and stability improvements. ### 1.2.16 — 2025-01-30 This release contains a bunch of bug fixes and stability improvements. ## Apps similar to Deck Builder for Union Arena | App | Rating | Price | Category | | --- | --- | --- | --- | | [Primal TCG Player](https://appshunter.io/ios/app/primal-tcg-player/id1540500182) | 4.2 (5) | Free | Games | | [Bushi Navi Global](https://appshunter.io/ios/app/bushi-navi-global/id6449964013) | 2.8 (20) | Free | Games | | [Runes - Riftbound Companion](https://appshunter.io/ios/app/runes-riftbound-companion/id6752467100) | 4.8 (447) | Free | Games | | [Lore Counter for LCG](https://appshunter.io/ios/app/lore-counter-for-lcg/id6737566034) | 4.7 (15) | Free | Games | | [Digimon Card Game Tutorial App](https://appshunter.io/ios/app/digimon-card-game-tutorial-app/id1537360543) | 4.0 (327) | Free | Games | | [Neuroscape Cyberdeck](https://appshunter.io/ios/app/neuroscape-cyberdeck/id6464562418) | 5.0 (15) | Free | Games | ## Related topics [deck builder for union arena](https://appshunter.io/ios/topics/deck-builder-for-union-arena) · [union arena](https://appshunter.io/ios/topics/union-arena) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-19.*