Doptrace: Faceting Bench
Rough, Tiers, Laps & Yield
$0.99 · Designed for iPad. Not verified for macOS.
Record faceting diagrams and tier progress, track laps and polish, calculate rough-to-finished yield, preserve transfer notes, and cost each cut.
Doptrace is a private faceting runbook for cutters who want every decision attached to the finished stone.
Carry one stone from rough orientation through dop, tier sequence, transfer, polish, finished weight, and bench review.
KEY FEATURES
- Rough orientation, dop, transfer, and finished-stone lineage
- Tier checklist with user-entered index, angle, meetpoint, and lap notes
- Rough-to-finished yield and cost-per-carat math
- Lap, polish, machine, and outcome comparison records
- Optional local photos through Apple's Photos picker
- Local PDF project brief
- 175 original offline reference plates
- No account, ads, analytics, tracking, subscription, or network requirement
Doptrace is a bench notebook and arithmetic tool. It does not identify gemstones, validate a diagram, assess treatments, prescribe machine settings, determine value, or replace qualified lapidary instruction, equipment guidance, and eye or respiratory protection.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Robert Corbin, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Robert Corbin
- Size
- 132.3 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Age Rating
4+
- 4+
- Copyright
- © 2026 Robert Corbin

