EcoBack / 3
Useful work. Inspectable results.
Bring a real task. Compare inputs, check assumptions, and leave with a result you can use.
Free browser tools and original puzzles. Optional cloud workspace membership and BPJ sponsored placements are separate paid services.
Home energy
- BillLens
Compare first-year and recurring electricity costs using your actual tariff inputs.
- AppliancePayback
Estimate replacement payback under three energy-price assumptions.
- HomeEnergy Log
Turn cumulative meter readings into interval use and daily averages.