Android apps that respect your device.

Plainform builds focused utilities for Android. Core processing runs on your phone. No ads, no tracking, and no account needed to use them.

Apps

CallRules: Call Blocker

Private, on-device incoming and outgoing call rules you control. Block exact numbers, prefixes, country calling codes, telephone areas, contacts, caller names, private or unknown callers, with optional safeguards, schedules, and incoming location constraints. No ads, accounts, or cloud spam lookup. Features · Help · Privacy policy · En français (confidentialité) · En español (privacidad)

Android

File Zone

A file explorer for local storage and network shares, with search that reads inside documents. Nothing leaves your device unless you send it. Privacy policy

Android

SiteProof

Jobsite photo documentation for contractors. GPS and timestamp stamped onto every photo, and a branded PDF report generated on site — fully offline, with a one-time Pro purchase. Optional SiteProof Team for companies. Features · Privacy policy · En español (privacidad)

In development

How these are built

On-device processing. Core app processing happens on your phone, not on a server we run.
No advertising or analytics SDKs. There is no tracking code in these apps.
Buy once. In-app paid features are a one-time purchase, not a subscription. (SiteProof Team, an optional cloud service for companies, is billed per user.)
Least permissions. Each app requests only what its features actually require, and explains why.

Contact

Support and enquiries: mjred.dev@gmail.com