STACK THE BUCKS.
EARN THE RIDGE.

No subscription · No trial · Pay once, own it forever · Restore on any iPhone signed into the same Apple ID

Free to download.

BuckUp v1.0 is live on the App Store. The core app — gauge, Buck Log, Explore, patches, Buck Shot — is free, no account required. Optional one-time unlocks for the Home Screen widget ($12.99), the Live Activity ($12.99), or both bundled ($19.99).

iPhone · iOS 18+ · Free with optional unlocks

• What is BuckUp?

  BuckUp is a free iPhone altimeter app for off-road drivers that measures elevation gain in Bucks — one Buck equals 1,000 vertical feet per session. It uses the iPhone's barometric pressure sensor (CMAltimeter) with GPS as backup, and the core app works fully offline with no account required.
• What does a Buck actually measure?

  One Buck equals 1,000 vertical feet of elevation gain in a single off-road session. 2.5 Bucks is a serious day, 5 Bucks is a full alpine run, and your lifetime Buck count is a vertical odometer for everywhere you've ridden.
• Is BuckUp really free?

  Yes. The core BuckUp app — the gauge, the 2,400-destination Explore tab, the unlimited Buck Log, 20 achievement patches (synced across devices when signed in), Buck Shot summit cards with per-session photos, and rig registration — is free, with no account required and no subscription. Two optional one-time unlocks turn on the Home Screen widget ($12.99) and the Lock Screen / Dynamic Island Live Activity ($12.99), or both bundled for $19.99 (save 23%).
• Does BuckUp work offline?

  Yes. The barometric altimeter, the gauge, the Buck Log, and 25 bundled marquee topo cards all work without cell service. Cloud sync of your log is optional and runs only if you sign in; the remaining 2,375 topo cards stream from topo.buckup.app when you have signal.
• Can I add photos to my Buck Log entries?

  Yes. Every Buck Log entry has a photo slot — pick from your camera roll, and the photo persists locally even if you're signed out. Photos and patches sync to your account on next launch if you choose to sign in. The photo becomes the hero on your Buck Shot summit card.
• Does BuckUp have a Live Activity and Dynamic Island?

  Yes. With the Live Activity unlock ($12.99 or in the $19.99 bundle) BuckUp shows your current altitude on the Lock Screen banner and inside the Dynamic Island on Pro iPhones throughout an active session, hands-free. It starts the first time you tap SADDLE UP after purchase.
• Is BuckUp better than onX Offroad or Gaia GPS?

  BuckUp is not a trail-map app — it's a dedicated barometric altimeter. onX Offroad and Gaia GPS are mapping and navigation tools; BuckUp focuses solely on measuring and celebrating vertical gain in a session. Many overlanders run BuckUp alongside onX or Gaia.
• What vehicles does BuckUp support?

  Any vehicle. BuckUp runs on the iPhone's internal sensors and is not wired to your rig. Rig registration ships with emblems for Jeep, Ford, Toyota, Dodge/Ram, Chevrolet, GMC, Land Rover, and Subaru, plus a generic Other Make path.
• Is there an Android version?

  No. BuckUp uses iOS-only APIs — CoreMotion, WidgetKit, Live Activities, and the Dynamic Island. The widget also surfaces in the CarPlay widget tray on iOS 18+ via Apple's native handoff (no dedicated CarPlay app). None of these have clean Android equivalents. If Android demand shows up post-launch we'll reassess.
• Is BuckUp safe to use while driving?

  Set up the session before you drive — tap SADDLE UP at the trailhead, mount the phone, and don't interact with the app while moving. BuckUp is a souvenir and a gauge, not a navigation tool. Not for aviation or emergency use.