Questions, bugs, or feedback: thomas.frosio@gmail.com. I read every message. Please include your iPhone model and iOS version if you are reporting a problem.
Yes, for a real score - Vigor reads your Apple Watch health data (heart rate, heart rate variability, sleep, workouts). Without a watch you can still turn on sample data in Settings, under Data, to see how the app works.
Vigor learns your personal baseline. On first run it reads about two months of your Apple Watch history, so it usually has a good baseline right away; if you are new to Apple Watch it improves as more data accumulates.
No. Vigor is a general wellness and information tool. It is not intended to diagnose, treat, cure, or prevent any disease. Apple Watch readings are non-clinical, so the score is an estimate. Always consult a qualified professional for health decisions.
Yes. Your health data is read from Apple Health and used on your device to compute your score; your health data never leaves your device. There is no account, no Vigor server, no ads, and no analytics. The only thing you can choose to share is your energy score with friends, through the opt-in Circles feature (see below), via your own iCloud. See the Privacy Policy for details. You can turn off Vigor's access anytime in Settings, Privacy and Security, Health.
Circles is an optional, opt-in way to share energy with friends. If you turn it on, only your chosen display name and your current energy score (a 0 to 100 wellness number) are shared - never your health data (heart rate, sleep, and so on) - and only with the friends you invite or whose invitation you accept. The shared data lives in your own Apple iCloud; there is no Vigor server, and the developer cannot read it. You can leave a circle, remove a member from a circle you own, or turn Circles off anytime in Settings inside Vigor - turning it off stops sharing and circle notifications.
Open the Circle tab. To invite, share your short join code (for example
A1B2-C3D4) or let a friend scan the QR code shown there; a link is
also available if you prefer. To join a friend's circle, enter their code under
"Join a friend's circle" (or scan their QR with the Camera app). Both people need
Vigor and an iCloud account. A join code expires after 90 days, and turning
Circles off removes your code so it can no longer be used.
No. Vigor is a one-time purchase of USD 2.99 (or your local equivalent). No subscription, no ads, no trackers, no in-app purchases.
Open Settings inside Vigor and pick one of the eight looks: Modern, Kawaii, OLED, Nature, Neko, Pixel, Silk, or Formal. The picker shows live previews and a full-screen try-on, and every look has light and dark palettes; the app opens in its light look by default, and Settings > Appearance can follow the system or force light or dark. The Apple Watch app and the widgets follow your choice, or you can pick a different look directly on the watch.
Yes. In Settings, under Energy model, you can pick a sensitivity preset (Gentle reacts less to a single rough night, Balanced is the default, Responsive reacts more), set your personal sleep need (6.0 to 9.5 hours, or Automatic), choose the morning level the model aims for after a full recovery (60 to 90), and override the gauge style (ring, arc, or bar). If the score ever feels off after a long break or a sensor change, the Recalibrate button on the same screen rebuilds your baselines from recent data.
The watch app shows your current energy on the wrist, in the same look and with the same model settings as the phone; it refreshes when you raise your wrist. It adds watch-face complications and appears in the Smart Stack when it is most relevant (mornings, after workouts, when energy runs low). The score is computed on the iPhone and synced to the watch, so keep the iPhone app installed.
Day tags (alcohol, caffeine, sickness, travel) tell the model why your body signals look unusual, so it can adapt - for example a sick day recovers more gently, and a travel day tolerates a shifted schedule. Tags only affect the day you put them on.
Vigor's body energy model is built on published, peer reviewed research. These are the primary sources behind how it reads sleep, heart rate, heart rate variability, and training load. Vigor is a wellness and information tool, not a medical device, and does not provide medical advice.
Vigor is an independent app built on Apple Health and is not affiliated with, endorsed by, or connected to any fitness-device maker.