Challenge Coin Check
GrayWaterOps
Challenge Coin Check — the collection app for people who actually carry coins.
Military. Law enforcement. Fire service. EMS. Veterans. Anyone with a shelf worth showing off.
NO SUBSCRIPTION. ONE-TIME UNLOCK.
Challenge Coin Check is pay-once, keep-forever. Free to download. Free to start.
DIGITAL DISPLAY SHELF
Photograph the front and back of every challenge coin in your collection. Add the story — who gave it,
where you were, why it matters. Your coins live on a beautiful display case you can share with anyone.
HEAD-TO-HEAD COIN BATTLES
Tap Challenge on any coin in the feed to start a 24-hour showdown. The community votes. Winner takes the points. New coin battles drop every day.
HOSTED THEMED CHALLENGES
Admin-hosted challenges spotlight themes — Vietnam-era, Cold War, K9, EOD, thin blue line, Army, Navy, Marines, Air Force, Coast Guard, Space Force, unit coins, command coins, whatever fits. Submit your best coin and the community crowns a champion.
VERIFIED COLLECTOR BADGES
Real collectors, verified. Trust who you're buying from.
LEADERBOARDS
Top collectors. Top coins of the day. Top sponsors. See where you stack up in the community.
BROWSE, LIKE, COMMENT
Scroll a live feed of challenge coins from collectors worldwide. Like your favorites. Leave a comment. View other members collections
FREE TIER
Browse, vote, comment, and upload up to 10 coins — free forever. No trial
ONE-TIME UPGRADES (NO SUBSCRIPTIONS)
• Field Pass — more uploads, Buy, sell, or trade on the platform
• Collector's Pass — unlimited uploads,
• Founder's Vault — everything above, plus a permanent founder badge and your coins rotated on the FEATURE spot in the Top 10 coins
Pay once. Keep it forever.
WHO USES CHALLENGE COIN CHECK
Active-duty military and veterans across Army, Navy, Marines, Air Force, Coast Guard, and Space Force. Police officers, sheriff's deputies, and federal law enforcement. Firefighters and EMS. Government agencies. And civilian collectors who trade coins at conventions and online.
BUILT BY A CHALLENGE COIN ARTIST
Created by Keith Hanshaw, who has designed custom challenge coins for over 30 years for military units, federal agencies, law enforcement, and organizations worldwide.
If you carry a challenge coin, this is your app. Coin check!
Military. Law enforcement. Fire service. EMS. Veterans. Anyone with a shelf worth showing off.
NO SUBSCRIPTION. ONE-TIME UNLOCK.
Challenge Coin Check is pay-once, keep-forever. Free to download. Free to start.
DIGITAL DISPLAY SHELF
Photograph the front and back of every challenge coin in your collection. Add the story — who gave it,
where you were, why it matters. Your coins live on a beautiful display case you can share with anyone.
HEAD-TO-HEAD COIN BATTLES
Tap Challenge on any coin in the feed to start a 24-hour showdown. The community votes. Winner takes the points. New coin battles drop every day.
HOSTED THEMED CHALLENGES
Admin-hosted challenges spotlight themes — Vietnam-era, Cold War, K9, EOD, thin blue line, Army, Navy, Marines, Air Force, Coast Guard, Space Force, unit coins, command coins, whatever fits. Submit your best coin and the community crowns a champion.
VERIFIED COLLECTOR BADGES
Real collectors, verified. Trust who you're buying from.
LEADERBOARDS
Top collectors. Top coins of the day. Top sponsors. See where you stack up in the community.
BROWSE, LIKE, COMMENT
Scroll a live feed of challenge coins from collectors worldwide. Like your favorites. Leave a comment. View other members collections
FREE TIER
Browse, vote, comment, and upload up to 10 coins — free forever. No trial
ONE-TIME UPGRADES (NO SUBSCRIPTIONS)
• Field Pass — more uploads, Buy, sell, or trade on the platform
• Collector's Pass — unlimited uploads,
• Founder's Vault — everything above, plus a permanent founder badge and your coins rotated on the FEATURE spot in the Top 10 coins
Pay once. Keep it forever.
WHO USES CHALLENGE COIN CHECK
Active-duty military and veterans across Army, Navy, Marines, Air Force, Coast Guard, and Space Force. Police officers, sheriff's deputies, and federal law enforcement. Firefighters and EMS. Government agencies. And civilian collectors who trade coins at conventions and online.
BUILT BY A CHALLENGE COIN ARTIST
Created by Keith Hanshaw, who has designed custom challenge coins for over 30 years for military units, federal agencies, law enforcement, and organizations worldwide.
If you carry a challenge coin, this is your app. Coin check!
Developer email
Keith@graywaterops.com
Developer website
https://GrayWaterOps.comReleased
Mar 26, 2026
Current version
1.10.26
Android version
7.0
Reviews & Ratings
4.6
out of 5
5
4
3
2
1
🙂 Mostly positive reviews
6 reviewsScreenshots
