# Grit Ladder — Rock Tumbler Batch Log

> Rock Tumbler Batch Log (iPhone/iPad app by ARMANDO ROCCA.)

- Source: https://appshunter.io/ios/app/grit-ladder/id6824465621 (this page in markdown: same URL + `.md`)
- Developer: [ARMANDO ROCCA](https://appshunter.io/developer/6824465623)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 3 MB
- Languages: American English
- Released: 2026-11-04
- Data updated: 2026-11-07

## What is Grit Ladder?

Grit Ladder is a logbook built around how rock tumbling actually works: four grit
stages, roughly a week each, with a full wash between every one.

Load a barrel and the app does the math for you — how much grit for the rocks you're
adding, whether you need ceramic media to fill it out, and where the water line should
sit. It warns you before you mix stones that are too far apart in hardness, so a soft
piece of fluorite doesn't get pitted sitting next to agate.

Every running barrel shows its rung on the ladder, day X of N, and when it's next due
for a look. When a stage finishes, the app walks you through the wash, a photo of the
rocks, and the step up to the next grit — coarse, medium, pre-polish, then polish.

Keep a Rock box of everything you've found — beach agates, creek jasper, gravel-pit
quartz, gem-show rough — with a photo, material, Mohs hardness, and origin for each.
A built-in reference of common tumbling materials and their hardness is there when you
need a quick answer.

Track your grit shelf in pounds and ounces so you know before you load a barrel
whether you actually have enough 220 or cerium oxide left, and watch finished batches
fill a jar with a before-and-after photo for every one.

Works for rotary and vibratory tumblers alike. No account, no ads, no internet
connection required — everything stays on your device.

What it won't do: it doesn't identify rocks from a photo, it doesn't sell you
anything, and it doesn't need the weather. It's a logbook, not a shop.

## Is Grit Ladder safe?

Not enough ratings yet to assess Grit Ladder.

## Is Grit Ladder legit?

Grit Ladder has limited verification signals. The AppsHunter Legitimacy Score for Grit Ladder is 50 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-11-04

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-07.*