Midline Journal

Not a tracker. A journal.

Only for iPhone

Free · In-App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Now with Apple Health — connect your CGM and Midline auto-imports your blood sugar so your timeline fills in without any tapping. Midline is a diabetes journal that captures the context your glucose chart can't. Mood, meals, blood sugar, insulin, symptom, in 15 seconds a day. Blood sugar readings tell part of the story. But what about the stressful meeting that spiked your glucose? The meal you didn't have time to think about? The week where everything felt off but you can't explain why? Midline Journal captures the context around your health — mood, meals, blood sugar, insulin, symptoms, and the life events that connect them. Every check-in takes 15 to 30 seconds. No forms. No clinical language. Just a quick note about how your day is actually going. Then, when it matters most — like walking into a 15-minute appointment where you always blank — you have a clear, honest picture of your recent health to share with your doctor. WHAT YOU CAN LOG - Mood and energy, in a tap - Blood sugar readings - Meals with photo-based food recognition - Insulin doses and timing - Symptoms and side effects - Life events that affect your health (stress, travel, sleep changes) WHAT YOU GET BACK - Weekly insights that connect the dots between your entries - Patterns you might not notice on your own ("Your mood tends to dip on days you skip lunch") - Doctor-ready summaries you can pull up or share before appointments - A journal that actually makes sense of your day-to-day PREMIUM FEATURES Midline Journal is free to use — full journaling, unlimited entries, and on-device intelligence included. Upgrade for: - AI-generated health summaries tailored to your logging history - Ask My Health — ask questions about your own patterns and get thoughtful, personalized answers PRIVACY ISN'T A FEATURE. IT'S THE ARCHITECTURE. Your health data stays on your device. Period. No accounts. No cloud sync. No servers storing your blood sugar readings. You own your data, and it never leaves your phone unless you choose to share it. Disclaimer: Midline is a health journal — not a medical device. It helps you capture context around your health so you can share it with your doctor or have for personal review. It does not provide medical advice, diagnosis, or treatment. Blood sugar ranges displayed in the app are based on published clinical guidelines (International Consensus on Time in Range, Battelino et al., Diabetes Care, 2019) and are for informational reference only. Always consult your healthcare provider before making any medical decisions. Terms of Use: https://midlineapp.com/terms | Privacy Policy: https://midlineapp.com/privacy

Ratings & Reviews

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Now with Apple Health: connect your CGM and Midline auto-imports your blood sugar so your timeline fills in without any tapping. Critical fix: resolves a startup issue that prevented the app from loading for some users after the 4.0 update. If you were affected, the app should open normally now. Thanks for your patience.

Version 4.0.2

The developer, Jarrett Truett, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • User Content
    • Usage Data
    • Diagnostics

Privacy practices may vary based, for example, on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Jarrett Truett
Size
  • 52.8 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
Languages
  • English
Age Rating
9+
In-App Purchases
Yes
  • Midline Premium USD 29.99
  • Midline Premium USD 4.99
  • Learn More
Copyright
  • © 2026 Jarrett Truett
  • Privacy Policy

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