Synka

Synka is a running-training brand focused on helping runners prepare consistently and reach the start line in good health. Its free iPhone app creates and adjusts a running plan around each person’s actual training, available time, recovery, fitness data and reported wellbeing. Rather than treating the calendar as fixed, Synka can account for unplanned runs, shorten a session when time is limited, and suggest changes for the runner to accept or decline, with explanations.

The app offers guided workouts, including endurance, intervals, tempo and strength sessions, and can send workouts step by step to Apple Watch. Runs from Garmin, COROS and Suunto can be imported automatically. Synka also presents performance estimates, training summaries and health indicators, and offers a guided test to reassess running fitness. Cycle tracking is optional; the app says it can use cycle information to help schedule harder sessions and is disabled for users on hormonal contraception. Synka is developing tools for physiotherapists to follow patients’ training.