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Agile Rates vs Electricity Clock: catalog facts
Agile Rates	Electricity Clock
Best for: UK Octopus Energy customers planning when to run appliances	Best for: ComEd customers deciding when to use electricity or whether to switch rate plans
Free Free and open source under the GPL-3.0-or-later license.	Free Free and open source under GPL-3.0-or-later.
Linux	Windows, macOS, Linux, Android, Web
Shows current and forecast electricity rates Finds the cheapest forecast window for a chosen duration All 3 strengths for Agile Rates Shows current and forecast electricity rates Finds the cheapest forecast window for a chosen duration Can display recent usage and estimated spend	Shows current and forecast hourly rates Compares usage history with past hourly rates All 3 strengths for Electricity Clock Shows current and forecast hourly rates Compares usage history with past hourly rates Runs on desktop, Android and web
For UK Octopus Energy tariffs Usage history requires an API key and account number	Rate data is published by ComEd for customers in Northern Illinois
Downloadable app	Downloadable app, Web application
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-or-later
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Sources for Agile Rates nedrichards.com/2026/05/agile-rates-after-launch Catalog checked October 8, 2026	Official website Full listing and sources Sources for Electricity Clock github.com/carterbox/tofu Catalog checked October 8, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.