runwithaera.com

Aera is an adaptive running coach for iPhone and Apple Watch, made in London by Tech With Nikola Ltd. It helps runners train toward a goal with a flexible weekly plan rather than a fixed timetable. Aera recommends a run for each day, explains its purpose, and lets users swap or shorten sessions. Runs can be completed in any order within the week, and the plan can adjust when life changes, including time away, lighter training, or illness, without requiring catch-up runs.

The app provides pace ranges based on recent results or Apple Health data, along with route, pace, progress, fitness, and race estimates. Guided runs offer support on the iPhone and Apple Watch. Aera works without an Apple Watch, and Apple Health is optional. The service requires no account, and data stays on the user’s device. Aera is free to download; membership unlocks training after onboarding, with a one-week free trial for eligible new subscribers. Android is listed as coming soon.