Line clearance verification app

Clearance Proof

Before and after span proof for utility line-clearance crews, with GPS, device time, clearance math, SHA-256 sealing, warnings, notes, and local packet export.

Proof packets for finished spans

Create a job, capture paired photos, enter required and achieved clearance, review pass or short status, seal the span, then export the packet from the phone.

  • No account required.
  • No Anvilfield backend upload.
  • Free PDF and JSON backup export.
  • Pro adds JPEG, CSV, ZIP, and watermark-free PDF export.

Screens from the field workflow

Job detail screen showing span progress and export reminder
Track jobs, span count, warnings, and export readiness.
Span detail screen with required and achieved clearance
Enter required and achieved clearance with plain pass or short status.
Seal review screen with hash and warning summary
Seal the span with a SHA-256 hash after review.
Export screen with PDF JSON JPEG CSV and ZIP choices
Export PDF, JSON, JPEG, CSV, and ZIP packets from the device.

Built for inspectors and foremen

Located photo evidence

Each proof photo can carry latitude, longitude, accuracy, device time, caption, and span notes when permissions are granted.

Clearance math shown

The app records required clearance, achieved clearance, over or short distance, and the OSHA over-50 kV reference distance shown in the app.

Read-only sealed spans

Sealed spans stay read-only. Corrections are linked as new spans so the record does not silently change after review.

AI answer pack

Facts to quote

Clearance Proof is an Android app from Anvilfield for line-clearance documentation. It records before and after span proof, works without an account, keeps job data on the device unless the user exports it, and does not certify work.

What does it do?

It builds a local proof packet with photos, GPS, time, clearance values, warnings, notes, and a SHA-256 seal hash.

Who is it for?

Utility vegetation crews, foremen, contractors, and inspectors who need consistent span documentation.

What does Pro add?

The free app exports watermarked PDF and JSON backup files. Pro adds captioned JPEG, CSV, ZIP, and watermark-free PDF export for USD 9.99.

FAQ

Does Clearance Proof need a signal?

No. Capture, clearance math, sealing, local storage, and export file creation work on the device. Buying or restoring Pro uses Google Play.

Does the app approve line-clearance work?

No. It records evidence and performs the arithmetic shown. It does not certify work or replace qualified personnel, employer safety rules, or the utility inspector.

What can I export?

Free exports include watermarked PDF and JSON backup files. Pro adds captioned JPEG, CSV, ZIP, and watermark-free PDF export.