Explore
See venues on the map
Browse NBA, MLB, NFL, and NHL venues and see where your sports travels have taken you.
Independent Mobile App
Keep a record of every stadium that became part of your story.
Stadium Stamps is a sports venue collection app currently in development by Tanner Kaczmarek.
The App
A visual passport for sports venues
Mark places you have visited, watch your collection grow, and keep the games attached to each stop.
Collect
Turn visits into stamps
Visited venues move into a colorful stamp-book collection with progress for each league.
Remember
Save the games you attended
Log attended games, add notes, and keep a simple record of the moments behind each visit.
Inside Your Collection
Every visit earns its place.
Build a visual record across leagues, one venue at a time.
Currently In Development
Built for completion, collecting, and the memories in between.
Stadium Stamps began with a simple question: how many arenas have you actually visited? The app gives that answer a visual form, with league-by-league progress and a collection that becomes more personal after every trip.
The current version supports guest progress on one device and optional accounts that sync visited venues and attended games. The app is free and does not contain advertising.
Stadium Stamps is a fan-made application and is not affiliated with, endorsed by, or sponsored by the NBA, MLB, NFL, NHL, or their teams. Team and league names and marks belong to their respective owners.
Privacy Policy
Stadium Stamps privacy and data choices
Effective September 10, 2026
Information the app handles
You may use basic venue tracking as a guest. Guest progress is stored on your device. If you create an account, Stadium Stamps handles your email address, account identifier, display name if provided, preferred league, visited venue selections, and attended-game records. Game records can include a date, teams, scores, result, and notes you choose to add.
Stadium Stamps does not request or collect your precise location.
How information is used
Information is used to authenticate your account, sync your collection across sessions, show league progress, save attended games, and provide the app's core features. It is not sold and is not used for third-party advertising.
Services that process information
Stadium Stamps uses Amazon Web Services for authentication and cloud data storage. It uses sports-data services to look up games and Apple Maps or Google Maps to display venue maps, depending on your device. Those providers process information under their own privacy terms.
Retention and deletion
Account data is retained while your account remains active. You can remove individual game records in the app. To delete the account and its saved cloud data, open Account and choose Delete Account. Guest progress remains only on the device until it is reset, the app is removed, or it is imported into an account.
Your privacy choices
You can use guest mode without creating an account, edit or delete saved game records, and delete your account from within the app. For access, correction, deletion, or other privacy questions, email help@apollopoet.com.
Policy updates
This policy may be updated as Stadium Stamps changes. The effective date above will be revised when material updates are published.