Build Mate

Build Mate is a renovation toolkit that turns your phone into a screen ruler, a spirit level, and a set of paint, tile, and wallpaper calculators — six practical tools for anyone measuring a room, quoting a job, or planning a DIY renovation. No account, no ads, no clutter: open the tool you need and get a number back in seconds. Every calculation starts from the same place: a room. Enter a room's length, width, and height once in the Room Calculator, and Build Mate derives floor area, ceiling area, gross and net wall area (after subtracting doors and windows), perimeter, and volume automatically. Save that room, then reuse it across the Paint, Tile, and Wallpaper calculators with a single "Import from Room" tap — no re-measuring, no re-typing dimensions, no arithmetic mistakes. KEY FEATURES ✓ Screen Ruler — measure small objects directly on your phone screen with a drag-to-fit ruler, calibrated against a standard credit card for accuracy, with cm/inch toggle and a saved measurement history. ✓ Level Tool — a bubble-level spirit level with Surface and Edge modes, a live angle readout, and a one-tap calibration to zero out your phone's own tilt. ✓ Room Calculator — enter length, width, and height and instantly see floor area, wall area, perimeter, and volume, with doors and windows subtracted from the net wall area. ✓ Paint Calculator — set the area, coverage rate (economy/standard/premium presets or a custom value), number of coats, and can size to get exactly how many liters and cans to buy. ✓ Tile Calculator — pick a standard tile size or enter a custom one, set grout width and a waste margin, and get the tile count (with and without waste) plus boxes needed if you know your box size. ✓ Wallpaper Calculator — enter perimeter and wall height, subtract doors and windows, choose a roll width/length (or enter custom ones), and account for pattern repeat to see exactly how many rolls to order. ✓ Save up to 20 rooms and reuse them everywhere — measure once, calculate everywhere. ✓ Metric and Imperial units, switchable at any time from Settings. HOW IT WORKS 1. Measure a wall or object with the Screen Ruler, or check a surface with the Level Tool. 2. Enter a room's dimensions in the Room Calculator and save it. 3. Open Paint, Tile, or Wallpaper, tap "Import from Room," and get your materials estimate in seconds — or just type dimensions directly if you don't need to save the room. WHY BUILD MATE — it is built for the job site and the hardware store aisle, not for a subscription funnel. There is no account to create, no ad breaks between taps, and no network connection required — every calculation runs on your device. The whole toolkit fits six clearly labeled tools on one screen, so there is nothing to learn and nothing to configure before you get your first number. PRIVACY / DATA — Build Mate works fully offline. Rooms and measurements you save stay on your device; nothing is uploaded, tracked, or shared. Questions or ideas? Reach us at the support email listed on this Play Store page. Rules: describe only what the app actually does — Play rejects listings that misdescribe functionality. No competitor names, no "#1 / best / free" badge claims, no fake testimonials. Weave keywords in naturally; do not keyword-stuff.