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Setup

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Initial Configuration

After you build LoopFollow the first time, you are asked a few questions (your initial choices can always be modified later):

  • Calendar Access: if you want to allow LoopFollow to provide real-time updates to carplay using the Calendar, choose Allow Full Access
  • Bluetooth Access: if you want to use an expired Dexcom sensor or a spare RileyLink device to keep LoopFollow running in the background while your phone is locked, choose Allow
  • Notifications: if you want LoopFollow to notify you for any of your alarms or if LoopFollow stops working, choose Allow

You will then be presented with a blank home screen as shown below.

initial screen for LoopFollow

Tap on the Gear/Settings Icon (⚙️) in the tab bar to get to the Settings screen.

Tab Customization

With version 3.1 and newer, you can modify what icons show up in the tab bar.

If the far right icons is the … More icon, first tap on that and then choose Settings to get to the Settings screen.

Settings Screen

The full lists of Settings is shown in the composite graphic below.

Setting for LoopFollow v 3.1

LoopFollow Data Source

Make sure you have access to the internet when filling out credentials.

You provide LoopFollow with information about the person you are following. At least one of these must be entered:

Add Nightscout

The graphic below shows the display when you tap on the Nightscout Settings row. For more information about tokens, keep reading the details below the graphic.

Setting up a Second Device for Remote Control

With version 4.0 and newer, you can set up a second device with all the Nightscout and Remote Control Settings by scanning a QR code from a LoopFollow device that is already configured.

Do not use that option if the person using the second device only needs to monitor with LoopFollow.

When adding the Nightscout information to monitor, you can copy your Nightscout URL (including the token) from the Admin Tools in Nightscout. When pasted into LoopFollow URL row, the app will automatically extract and fill in both the URL and token.

enter nightscout credentials

Nightscout Access

It is possible to have your Nightscout site readable by the world, in which case you do not need to add a token. If you choose to do that, just ignore references to entering the token. The status will show up as OK (Read).

For more information about tokens with Nightscout, refer to Admin Tools in Nightscout.

The type of token depends on the type of remote control desired. The table below indicates the minimum token access for each type of remote control available with LoopFollow. When you enter your credentials, LoopFollow tries to reach the site and then provides the status.

  • The Loop Remote Control option requires LoopFollow version 3.2 or newer
  • The Trio Remote Control option requires the user be on version 0.5.x or newer of Trio
    • Breaking change on 2025-October-06
    • Trio 0.6 or newer requires LoopFollow 4.0 or newer
    • Trio 0.5.1.28 or older requires LoopFollow 3.2.11 or older
LoopFollow Remote Type Minimum Token Access LoopFollow Status
None Read OK (Read)
Loop Remote Control Read OK (Read)
Trio Remote Control Read OK (Read)
Nightscout
Trio 0.2 or older		 Read & Careportal OK (Read & Write)

Add Dexcom

The graphic below shows the display when you tap on the Dexcom Settings row.

The Dexcom Share credentials are optional, but can be useful when the Nightscout URL is unavailable.

enter dexcom credentials

The Toolbar

The toolbar (tab bar) at the bottom of the screen is now configurable for rapid access to the items of your choice. The items that can be selected are:

See Toolbar Tab Customization

Home

The home screen provides a dashboard of important information.

  • Supports Glucose display when Dexcom is available but Nightscout is not
  • Supports Information Display from Loop and Trio when Nightscout URL is provided
    • Loop & Trio: common features like status, basal, bolus, carbs and eventual glucose forecast
    • Loop: Loop specific features like Profile Name, remote control (in development)
    • Trio: Trio specific features like Autosens, TDD, remote control (with Trio 0.5.x and newer)

Once you’ve configured your settings, your Main screen will look as beautiful as the example below!

overview graphic of home screen

App Settings

🚧 Documentation Under Construction 🚧

Background Refresh Settings

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General Settings

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Graph Settings Settings

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Tab Settings

The user can modify which icons are displayed in the task bar at the bottom of the screen.

See Toolbar Tab Settings for more information.

Information Display Settings

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Rec. Bolus

LoopFollow Report of Trio Recommended Dose

It happens. We made a mistake. The Rec. Bolus feature for LoopFollow was reporting a value from the Trio app that was never meant to be used as a recommended bolus.

  • With LoopFollow 4.0 and newer, users viewing a Trio URL will notice the Rec. Bolus display is always blank
    • Updates are planned for Trio and LoopFollow to provide the last recommended value from the Trio app
  • The value shown to users viewing a Loop URL matches what the user of the Loop phone would see when asking for a recommendation and is not changed in LoopFollow 4.0

Remember: the Rec. Bolus values is from the last AID app update to Nightscout

Remote Settings

Detailed instructions for configuring a phone for remote control are found on the Remote Control Overview page.

If you are configuring a second device and already have one device configured for remote control, be sure to review:

Alarms

🚧 Documentation Under Construction 🚧

Alarm Settings

🚧 Documentation Under Construction 🚧

Integrations

🚧 Documentation Under Construction 🚧

Calendar

The calendar entry used to update on the watch in real time, but with iOS 18, the update rate has been throttled. It is still useful for Carplay.

Contact

The Contact image trick added with v2.2.8 currently works to provide real-time updates on an Apple Watch.

For more detailed instructions, see Real-Time Watch Updates using Contact

Advanced Settings

🚧 Documentation Under Construction 🚧

Allows you to choose what information to download from Nightscout and to* modify your graph

  • Download Treatments
  • Download Prediction
  • Graph Basal
  • Graph Bolus
  • Graph Carbs
  • Graph Other Treatments
  • BG Update Delay
  • Logging options (turn on debug option)

Logging

LoopFollow logs activity to a file that can be viewed within the app, and can be shared via email, a Notes file or Facebook messenger if needed. The log can be filtered and searched. This will aid in troubleshooting and diagnostics. Normally, the debug log option is disabled. The log debug option is found in the Advanced Settings section. If the logs seem verbose, check that setting.

View Log

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Share Logs

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LoopFollow Facebook Group

Tapping on this row takes you to the LoopFollow Facebook Group where you can review posts and ask for assistance.

Build Information

This section reports the Version you are using, indicates the Latest Version. In addition, it reports when this app will expire, when it was build and provides details of the branch name and commit identifier.