📝 What was added (Sept 2026)
Rather than guess, all 552 existing titles were dumped and ten subject areas probed for coverage. Three looked covered but were false positives (walking pace was a step-counter, cadence was wing-beat, aperture was astronomy). The other ten were genuinely empty — so here they are.
3 in Science & Engineering, 2 in Health, 2 in Finance, 2 in Productivity, 1 in Home & DIY.
Hike Time Planner
Naismith's rule + Langmuir descent correction + real sunset times from your latitude. Tells you whether to start at dawn or take a head torch.
Home & DIY 🚴 Just addedBike Gear Calculator
Gear inches, development, gain ratio, wheel duplicates, speed at cadence — the four numbers that actually matter when choosing gearing.
Health & Fitness 📷 Just addedPhoto Exposure Lab
EV equivalence across stops, ND filter exposure, true depth of field (not the marketing version), and the diffraction limit at your aperture.
Science & Engineering 🏃 Just addedRace Pace Predictor
Riegel formula predictions for any distance, plus five training paces derived from a recent race time. Honest, not optimistic.
Health & Fitness 👶 Just addedBaby Sleep Planner
Wake windows → nap length → bedtime, by age band. A plausible shape for the day, not a guarantee — because no two babies are alike.
Productivity & Lifestyle ⚡ Just addedEnergy Tariff Comparator
Annual cost comparison across tariffs, plus the exact usage level where the ranking flips. Useful for variable / off-peak deals.
Finance & Money 🛒 Just addedUnit Price Comparator
Normalises multi-pack offers to a single comparable number — per 100g, per sheet, per load. Finds the bigger pack that's actually more expensive per use.
Finance & Money 🔤 Just addedFluid Type Scale
CSS clamp() solved from two breakpoints and a base size, in rem. Picks the right min/max so type looks good at 360px and 1920px.
Fabric Yardage Estimator
Width, nap direction, pattern repeat, and pre-wash shrinkage — folded into the total yardage in the right order, so the bolt you bring home is enough.
Science & Engineering 🚗 Just addedCar Care Tracker
MOT + service countdowns, tyre-tread wear projection, and cost-per-mile derived from your actual receipts — not from a guess.
Science & EngineeringHave an idea for a tool that should be here?
The audit found ten gaps, but there are more. If something you actually need is missing, suggest it — the most-requested ones get built next.
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