WalkProof Privacy Policy

Effective date: August 16, 2026

This policy describes how Driftline Labs LLC ("we", "us") collects and uses information through the WalkProof mobile application ("WalkProof"), a tool for independent contractors that turns a recorded walkthrough into a draft scope-of-work (SOW) and proposal. It applies only to WalkProof — see our separate Lingosphere Privacy Policy for that app.

Information We Collect

• Account & business profile: your email address and a securely hashed password (or, if you sign in with Google or Apple, your email and a unique account identifier from that provider), plus business details you provide: company name, business address, phone number, license number, and logo.
• Subscription & billing: subscriptions are processed by Apple, Google, and RevenueCat; we store your subscription status and an account identifier from RevenueCat, but never your card details, which are handled directly by those providers.
• Customer information you enter: the name, address, and email of the customer for each job. The address may be prefilled from your device's approximate GPS location via OpenStreetMap's Nominatim reverse-geocoding service (that request sends coordinates, not the saved address, to OpenStreetMap).
• Audio recordings: the walkthrough audio you record. It is stored temporarily on our servers (and, depending on configuration, briefly mirrored to Cloudflare R2 as a crash-recovery backup) solely to produce a transcript, and is automatically deleted once transcription succeeds.
• Transcripts & generated drafts: the text transcript of your recording and the SOW/quote drafts generated from it. These are retained as part of your job history until you delete the job or your account.

How We Use This Information

We use this information to authenticate your account, generate your SOW and quote drafts, process your subscription, and provide customer support. Specifically:

• Your recording is transcribed using either a hosted transcription provider (AssemblyAI) or local, on-device processing, depending on configuration.
• The full transcript is sent to a large-language-model provider — Anthropic, OpenAI, or Groq, depending on configuration — to generate your SOW and quote draft. If your conversation mentions the customer's name or other details, that text may be included as part of the transcript sent to the LLM provider for this purpose.

Sending Proposals to Your Customers

When you approve a draft and send it to a customer, WalkProof emails the finished PDF directly to the customer's email address on your behalf, and keeps a record of who each proposal or quote was sent to and when (shown to you in the app as your dispatch history). We do not use this recipient information for any purpose other than delivering and tracking your own proposals and quotes.

Third-Party Service Providers

We share information with the following providers strictly to operate the app: AssemblyAI (audio transcription), Anthropic, OpenAI, or Groq (SOW/quote draft generation), Cloudflare (audio backup and file storage), OpenStreetMap Nominatim (address lookup), RevenueCat, Apple, and Google (subscription billing and sign-in), and Resend (account emails and delivering your proposals/quotes to customers). We do not sell your information or your customers' information.

Data Retention & Deletion

Audio recordings are deleted from our servers automatically once transcription completes. Transcripts, generated drafts, and job records are retained until you delete them or delete your account. Deleting your account from within the app permanently removes your business profile, jobs, quotes, and related records; this action is immediate and irreversible.

UK & EU Users: Your Data Protection Rights

If you are located in the United Kingdom or European Economic Area, the UK GDPR and/or EU GDPR give you rights beyond those described above. This section explains how we meet them.

• Legal basis for processing: we process your account and business profile information to perform our contract with you (providing the WalkProof service); we process audio recordings and transcripts based on your consent, given each time you choose to record a walkthrough; and we process limited technical data (such as crash logs) under our legitimate interest in keeping the app secure and working.
• Your rights: you can request access to, correction of, or erasure of your personal data; ask us to restrict or object to certain processing; and request a portable copy of your data. Most of these are available directly in the app (edit your profile, or delete your account to erase your data). For anything else, email contact@driftlinelabs.net.
• International transfers: WalkProof is operated from the United States, and the service providers listed above (AssemblyAI, Anthropic, OpenAI, Groq, Cloudflare, RevenueCat, Resend) process data in the US. Where we transfer personal data from the UK or EEA to these providers, we rely on the UK International Data Transfer Addendum and/or the EU Standard Contractual Clauses as our transfer safeguard.
• Complaints: you have the right to lodge a complaint with your local supervisory authority — in the UK, the Information Commissioner's Office (ico.org.uk).
• Recording conversations in the UK: the consent requirements described in the callout above are specific to certain US states. In the UK, recording a conversation with a customer is generally lawful under UK GDPR if you have a valid legal basis (such as the customer's consent, or your legitimate interest in documenting the scope of work) and you're transparent with the customer that the call is being recorded. If in doubt, tell your customer you're recording before you start.

Children's Privacy

WalkProof is a business tool intended for use by adult contractors and is not directed at children under 13.

Changes to This Policy

We may update this policy from time to time. Material changes will be reflected by an updated effective date above.

Contact

Questions about this policy or your data? Email us at contact@driftlinelabs.net.