FinishTrace

Finish records for careful makers

The finish sample is only useful if you can make it again.

FinishTrace turns physical wood-finish testing into one focused, offline workflow: test, compare, approve, and reproduce.

Open the calculatorSee the workflow
  • Works without an account
  • No analytics or tracking
  • Records are stored locally on your iPhone
Walnut desk finishApproved
BaselineFT-0001
2 coats · satin
VariationFT-0002
Changed: final coat
Physical winnerFT-0002
Specification ready
Session calculation220.00 mLEstimated from user-entered coverage and allowance.

One traceable path

From a test board to an approved specification

FinishTrace keeps experiments, observations, and approval separate so a working note cannot silently become the trusted result.

  1. 01

    Test

    Give each physical sample a stable FT code and record the substrate, preparation, ordered finish layers, observations, and an optional photo.

  2. 02

    Compare

    Create a linked variation, state the intended change, and compare only the fields that differ from its source.

  3. 03

    Approve

    Record the actual physical winner for a project without treating an observation or verdict as an approval.

  4. 04

    Reproduce

    Open the saved specification, QR label, and ordered make-again checklist when the finish is needed later.

Compare the change, not the noise

See exactly what moved between two samples.

Linked variations preserve their source and surface the changed substrate, preparation, product reference, mixture, application, coat count, and observation fields side by side.

FT-0001FT-0002
Final coat
Oil satin → Hardwax matte
Application
Brush → White pad
Observation
Visible lap marks → Even sheen

Deterministic session estimate

Estimate from the coverage you enter.

Use direct area or length × width, metric or US units, coats, coated faces, an explicit allowance, and one to four component ratios by volume. Coverage and allowance start blank. The final displayed estimate is rounded once and component amounts reconcile to that total without allowing a required component to round to zero.

Estimate a batch

A usable Free version

Start the full workflow before deciding on Pro.

Free

One complete project

  • Unlimited samples and variations
  • Standalone samples
  • Compare, approve, PDF, QR, and make-again workflow
  • Session calculator, copy/share, and saved-recipe prefill
Lifetime Pro

Reusable finishes, one purchase

  • Unlimited project creation
  • Create and edit structured ratios by volume and mixed-system coverage per coat
  • Apply a confirmed calculator result to an editable layer
  • Start an independent project from an approved finish
  • No subscription
  • Existing records remain visible if entitlement changes

The App Store supplies the localized purchase price inside the app.

Private by design

No FinishTrace account. No developer cloud. No tracking.

Records and selected photo copies are stored in the app's local container. FinishTrace does not automatically send them to the developer. Apple may process app data as part of system device backup according to the user's settings.

Read the privacy policy