CGM features and fixes · SIBIONICS GS1

How many followers can a SIBIONICS GS1 have?

What SIBIONICS GS1’s own apps (SIBIONICS GS1 app, SiBionics Companion) do, from the maker’s documents.

Not stated by the maker

SIBIONICS states no maximum number of followers. The SiBionics Companion app can follow more than one person. (App Store listing)

The GS1 is not FDA-cleared and is not sold in the US; these answers come from SIBIONICS's EU/UK English user guide, its sibionicscgm.com pages and the UK App Store.

More on the SIBIONICS GS1

• Apple Watch
• iPhone widget and Lock Screen
• Garmin
• Android follower
• Data for the doctor
• Alarms in Silent mode and Focus
• Signal-loss alert

How many followers on other CGMs

• Dexcom G6
• Dexcom G7
• Dexcom ONE+
• FreeStyle Libre 2 and 2 Plus
• FreeStyle Libre 3 and 3 Plus
• Medtrum TouchCare Nano CGM
• Eversense 365
• Medtronic Simplera

Sources, quoted

• App Store listing: “Multi-member Management: Monitor multiple family members simultaneously.”

Every quote is checked against its source page before each update of this site; last checked 2026-10-06. Makers change their apps; the source page is the authority when it differs.