Plan CD
Precise, private, single-purpose iOS apps for UK trades and DIY. No accounts, no ads, no tracking — pay once, own it.
Aerial Aligner: Freeview UK
Point your TV aerial at the best Freeview transmitter — live compass alignment and signal bands.
Dish Aligner: Satellite UK
Exact azimuth, elevation and LNB skew for Astra 2 and the main European satellites.
Gas Flow Rate Calculator
Appliance heat input from a meter test dial — for UK plumbers and Gas Safe engineers.
BTU Calculator
Room-by-room radiator sizing with the UK standard heat-loss formula — BTU/hr, Watts and kW.
Solar Aligner: UK Solar Panels
Optimal direction and tilt for solar panels, with live phone-on-panel alignment.
Stair Calculator: UK Part K
Design and check staircases against Approved Document K, with a live phone-on-stringer pitch check.
Stove Toolkit: Part J UK
Log burner ventilation, hearth size drawn to scale, flue and clearance checks against Approved Document J, every result cited.
Legionella Logger: Landlord L8
Schedule, record and evidence the monthly water temperature checks in HSG274 — timers, pass/fail, weekly flushing and a PDF log. Free for one property.
Birthday Keeper: Reminders
A private, pay-once birthday reminder — countdowns, ages, widgets and reminders you can act on. Your contacts never leave your phone.
Soakaway Sizer: BRE 365 Design
Size a domestic soakaway to BRE Digest 365 — percolation test, storm sweep and compliance checks, offline in the field.
Cable Size UK: BS 7671 sizing
Cable sizing and volt drop that shows every step of the working — for UK electricians.