Android app for subcontractor variations

VariationProof

Stop losing money on undocumented variations.

VariationProof turns site photos, scope changes, and price adjustments into builder-ready variation records with evidence, GST, and approval tracking.

Photo proof Compress and store site evidence locally on the phone
Evidence record Show what changed, why it was outside scope and when it was sent
Confirmation trail Free can note outside confirmation; Pro locks customer confirmation proof on the phone

Download

Install the current Android build.

This is a direct Android APK download for checking VariationProof on a real phone before Google Play production release. The beta is local-first; free notices can be confirmed manually, Pro customer confirmation locks proof on the phone, optional Gmail direct-send stays phone-to-Google with no VariationProof server, and real Play Billing, Gmail OAuth, and Xero OAuth are not live in this APK yet.

Current Android package: nz.co.variationproof.app
App version: 0.1.9
APK SHA-256: B302671B8F67B104FBC80D01FB31B267673C5315855DB54D99CF0874C5D47A4A

Current 7-day beta code Loading... Use this code when the Android app opens.
Download VariationProof APK
01 Free forever

Unlimited VariationProof-branded notices with photos, description, price, PDF sharing, local history, CSV export and manual confirmation notes.

02 Pro confirmation

Capture customer confirmation, lock proof hashes, send SMS proof, and issue professional branded PDFs.

03 Xero draft invoice

Turn customer-confirmed extra work into a Xero draft invoice, then review and send from Xero.

Free vs Pro

Free records. Pro gets approval and invoicing.

The free app solves the basic job: create the variation, add photos, describe the work, set the price, send the PDF, keep a local history, export CSV, and manually note outside customer confirmation.

Pro is for serious jobs: get customer confirmation, lock the proof trail, use your business branding, then create a Xero draft invoice for review.

Free VariationProof branded

Create unlimited usable variation records with professional VariationProof footer branding.

Pro Confirmed and branded

Use your logo, company details, GST/NZBN/ABN, custom terms, locked proof hashes, SMS proof and Xero draft invoicing.

No SaaS bloat

No login, hosted acceptance link, cloud database, AI call, backend verification or mandatory sync is required.

Positioning

Variation records that hold up when someone argues later.

VariationProof is not just a quote tool. It converts messy site reality into defensible commercial evidence: outside scope, evidence, price, who approved it and when it was sent.

If it is not evidenced, priced, sent, and approved, it is not a variation. It is just a hope.

Free Manual confirmation

Record who confirmed it and where it was confirmed, without turning it into locked proof.

Pro Customer confirmation

Confirm on the phone, lock the record, generate proof hashes, then open SMS proof when needed.

Pro Xero draft invoice

Create a draft invoice from the confirmed variation. The contractor still reviews and sends from Xero.

Install

How to check it on an Android phone.

2. Allow install if Android asks

Android may ask you to allow installs from the browser. This is normal for a direct APK test install.

3. Open VariationProof

Create a variation, add a photo, set company details/logo, review the PDF and confirm the share sheet opens.

Support

Need help with the app?

Commercial Concrete Grinding, Greenhithe, Auckland, New Zealand nick@commercialconcretegrinding.co.nz 0278358198