Useful apps that need no connection

Calculators, timers and planners for Android. No accounts, no ads and no tracking: what you type stays on your phone.

Food & Drink

Brewratio

Coffee ratio calculator with a step-by-step brew timer, tea guide and brew log.

House & Home

Plan paint, wallpaper and tiles for each room, with the cans and rolls to buy.

Entertainment

Dice roller for tabletop games: notation, keep highest, advantage and odds.

Tools

Morse code translator with vibration and lamp playback, chart and trainer.

Sports

Bicycle gear calculator: gear inches, speed at cadence and bike comparisons.

Shopping

Compare unit prices per 100 g, per litre or per item, with multipacks and deals.

Health & Fitness

Interval timer for work and rest: rounds, sets, warm-up and a session log.

Entertainment

Two-player game clock with increment, delay and standard time controls.

Tools

Work out what each home appliance costs to run per month and per year.