Tumbler Buddy
Never lose track of a stage again
Coarse, medium, fine, polish, burnish—or your own steps. Every barrel tells you where it is, how many days left, and what to do next. No more “wait… which one is on stage 3?”
For rock tumblers who take it seriously
From rough rock to mirror polish— without losing track of a single barrel.
Four to eight weeks per run is a long time to hold in your head. Tumbler Buddy remembers the stages, the timing, and the photos so you can focus on the fun part—lifting the lid and seeing what came out. Start free with one tumbler. Upgrade the moment a second machine shows up on the bench, or the first time you realize your whole batch history lives on one fragile phone.
Built for the grind (literally)
Everything you need. Nothing you don’t.
No more spreadsheets. No more paper logs taped to the shelf. No more squinting at a barrel wondering if it’s week four or week five. Open the app, see every machine, know exactly what’s next—at home, in the shed, anywhere. Works offline, because your garage probably doesn’t have great Wi‑Fi anyway.
Know what to do today, at a glance
Your Today tab is a short, honest list: rinse this one, advance that one, check on the burnish. No digging through notes. No opening every barrel to see who needs attention.
Reminders that don’t wake you up
Gentle nudges when a stage ends or it’s time for a rinse. Quiet hours keep alerts out of your bedroom so you tumble in peace and sleep in peace.
Your program, your pace
Load a trusted preset or build your own grit sequence from scratch. Rotary, vibratory, seven days, ten days—however you run your barrels, the app matches you, not the other way around.
Show off what you made
Snap a photo of every haul, tag the rough—agate, jasper, mixed creek finds—and keep it with the batch. Remember exactly what that ugly chunk looked like going in and what came out six weeks later.
Learn while you wait
Stages take weeks. Fill the time with tips, videos, and guides right inside the app—no more bouncing between ten browser tabs and three forum threads just to compare polish compounds.
A look inside
Every tab, one quick swipe.
Home shows your tumblers. Active shows what’s running right now. Today tells you what needs doing. History holds every batch you’ve ever finished, photos and all. Swipe, tap, or use the arrows to look around.
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Home -
Active -
Today -
History -
Learn -
Settings
Pricing
Free to start. Upgrade when you need to.
Running one tumbler? Free covers it. Got a rotary and a vibratory going at once? Want your batch history safe if your phone takes a tumble of its own? That’s what Premium’s for—and most serious hobbyists end up there sooner than they think.
Free
Starter
One tumbler. Everything you need. Nothing to pay.
- One tumbler — with as many barrels as that machine holds
- Full stage tracking, Today, Active, History, and Learn
- Reminders and quiet hours so nothing overcooks
- All your notes and photos stored privately on your phone
- No cloud backup — if the phone is lost, stolen, or wiped, so is everything
- Want to track a second or third machine? You’ll need Premium
Premium
The real deal
For serious setups—and serious peace of mind.
- Unlimited tumblers — run a rotary, a vibratory, and anything you add later
- Cloud backup of every batch — photos, notes, start dates, all of it
- Phone breaks? Who cares. Sign in on a new device and pick up right where you left off
- Every free feature—timers, presets, Learn, reminders—without the limits
- Billed through the App Store or Google Play. Cancel anytime from your phone.
Pricing is locked in at launch and shown inside the app before you pay a cent. Join the waitlist and you’ll hear the minute subscriptions go live—no surprise charges, ever.
Get the app
On the App Store now. Android in open testing.
Grab it on iPhone or iPad below. On Android we’re still in open testing—the Play badge takes you to the Rock Nerd group where you’ll find the invite thread for Tumbler Buddy.
Google Play badge → Rock Nerd open-testing instructions (not the public store listing yet).
Want a heads-up when Premium subscriptions move or Android hits public Play? Email support@hrdnoxlabs.com with subject “Tumbler Buddy waitlist.”
Questions?
The stuff fellow tumblers ask us
Short, honest answers about what’s in the app, what’s coming, and what it’ll cost—no fluff.
It’s the app that keeps every barrel on track—from the first load of coarse grit all the way to the final polish. Tumbler Buddy remembers which barrel’s in which stage, when it’s time to rinse, advance, or burnish, and it holds your batch photos and notes in one place. Think of it as a tumbling-obsessed friend living inside your phone.
Yes. Free is designed for someone with one tumbler machine (you can still run multiple barrels on that machine). If you run several tumblers — for example a rotary and a vibratory, or multiple units — Premium unlocks unlimited tumblers plus cloud backup.
Local means your batches, notes, and photos live on your phone only. If the device is lost, damaged, or reset without a backup, that data may be unrecoverable. Premium cloud backup stores a copy tied to your account so you can sign in on a replacement phone and restore your batches and notes.
Yes. Timers, barrels, and batches live on your device—you can check stages whether you’re at your tumbling spot or away from Wi‑Fi. You only need a connection for optional cloud sign-in, backup, or features that explicitly use the network.
No. You can label tumblers as rotary or vibratory and track stages the same way. The app cares about your program — coarse, medium, polish, burnish, or custom steps you define.
The app schedules local alerts on your device for stage milestones, cleaning windows, and burnishing — similar to a calendar reminder. You can turn them off or set quiet hours so you’re not buzzed overnight.
We’re focused first on making tracking effortless inside the app. Export and sharing features may arrive in updates; email us if something specific would help your workflow.
iPhone & iPad: Get it on the App Store. Android: we’re in open testing—join Rock Nerd App Testing on Google Groups and open the Tumbler Buddy conversation for Play testing steps.
Subscription options (monthly, yearly, lifetime where offered) are shown inside the app before you pay. There’s no charge until you subscribe—you’re never billed just for downloading the free tier.
HRDNOX Labs — a small team building practical tools for hobbyists and makers. We read support mail and use feedback to prioritize the roadmap.
Email support@hrdnoxlabs.com with “Tumbler Buddy feedback” in the subject. Screenshots and your app version help us reproduce issues quickly.