GM10 vs ref
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GM10
Connect with fellow trading card enthusiasts on a dedicated social platform. Discover news, engage with the community, buy, sell, and even run your own brand shop. Find local shows to bridge the generation gap in collecting.
- Community engagement and news
- Find local trading card shows
- User profiles with transaction history
- Online buying and selling
- In-app randomizer for breaks
- Brand shops for selling merchandise
Read full descriptionHide full description
GM10 is the social platform for everything trading cards. We’re collectors who have built a collector-focused application that connects the trading cared hobby by bringing the best of everything into one platform. These collector-focused tools include: - We’re community first, our goal is to showcase the best parts of the hobby by being the primary place for members of the community to engage with one another, learn more about the hobby with breaking news and interact with the community by posting about it. - The generation gap in trading is real, with our fun and nostalgic design, we’re looking to engage those young and old from wherever you call home in one place, you can even find out where the nearest upcoming show is going down so you can better bridge that divide. - Being community-first always, everyone on GM10 has a profile that they can create to help put a face/avatar to the name. We hope both parties on a deal can learn about each other’s interests, where they call home, their collection and even their previous transactions. - Say so-long to only having two options on an online marketplace, you can buy and sell your cards online with just a few clicks. - Come break with us, we’ve developed an in-application randomizer that takes the pain away from your breaks. - GM10 unlocks the next level of collecting by enabling you to make collectibles your business. With a sleek marketplace that is designed with the collector in mind we hope you’ll have a very profitable experience on the app for years to come - We’ve dedicated a significant amount of our development to building out Brand Shops, you can establish your own shop where you and your friends/business partners can collaborate to sell your own branded merchandise or products to the broader market. We hope you will join us and help build the community as we all look to slab it, stream it, sell it. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
ref
This app helps referees master the inner game through reflection, presence, and practice. It offers educational resources, game film breakdowns, and live events to sharpen skills and deepen understanding. Built by officials, for officials, it fosters a community for growth and networking.
- Training videos and game film analysis
- Expert breakdowns
- Live webinars and mentoring
- On-demand sessions
- Interactive space for confidence and awareness
- Community for questions and feedback
Read full descriptionHide full description
Welcome to ref-ology —Through reflection, presence, and practice, ref-ology helps referees master the inner game so they can serve the outer game with excellence. Our mission is to create a movement of officials who prioritize integrity in performance and who view the game as a pathway for lifelong development. We are here to develop referees who call the game and embody the spirit of it: cultivating consistency, communication, and clarity in every moment. Inside the app, you’ll find a growing library of educational resources, game film breakdowns, live events, and vibrant conversations designed to help you sharpen your skills, deepen your understanding of the game, and thrive in your officiating journey. Built by officials, for officials, ref-ology offers an inclusive space where you can level up, ask questions, get feedback, become situationally competent and grow your network —all in one place. Key Features: + Training videos, game film analysis, and expert breakdowns. + Live webinars, mentoring opportunities and on-demand sessions from experienced officials and other key influencers inside the sports ecosystem. + A dedicated and interactive space to grow your confidence and mastery of on-court awareness. Whether you’re looking to get started or aiming to refine your approach at the highest level, ref-ology is where better officials are made.
Screenshots
Verdict
The clearest difference is in-app purchases: ref at none against GM10's 8. ref also leads on ads (none vs shown) and rating (4.9 vs 4.7). On price, ratings volume, update cadence and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. GM10 sells 8 in-app purchases, starting at $14.99 per month. ref asks for nothing beyond the download.
ref holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 22 and 9 respectively.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.
| Parameter | GM10 | ref |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (22 ratings) | 4.9 (9 ratings) — better |
| Positive reviews | 94.4% of reviews | — |
| Number of ratings | 22 — better | 9 |
| Update frequency | Weekly | Weekly |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 138 MB | 126 MB |
| Age rating | 17+ | 9+ |
| Developer | Matthew Billman | Ref-ology |
Customer experience
GM10
ref
In-app purchases
GM10
- Plus Monthly$14.991 Month
- Premium$24.991 Month
- BLUE$1.99
- RED$3.99
- PURPLE$7.99
Show 3 moreShow fewer
- GOLD$9.99
- BLACK$14.99
- GEM$19.99
ref
No in-app purchases









