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MoodSync

The best mood trackers for bipolar disorder in 2026

2 min read · Sources last checked: May 2026

Six bipolar mood trackers, sized up by what they actually do. Picks below match the most common buying questions; deeper head-to-heads are linked for each app.

Quick decision tree

  • Bipolar-first, with sleep and meds plotted alongside mood, your data on device or in your private iCloud. MoodSync.
  • Bipolar-focused tracker with a printable monthly PDF. eMoods.
  • General mood diary with rich activity tagging. Daylio.
  • Chronic-illness symptom tracker that includes mood. Bearable.
  • Emotional vocabulary practice and well-being check-ins. How We Feel.
  • AI-driven daily summaries and check-ins for bipolar. Bipolar Mood Companion.
  • Newer bipolar tracker. Moody — small public footprint as of the date checked; worth trying if its design fits you.

How we chose

Three things. None of them are about which app is prettiest.

  1. Does it separate the axes bipolar disorder moves on? Depression, elevation, irritability, and anxiety should not collapse into one score.
  2. Does sleep show up on the same chart as mood? Sleep is one of the most consistent early signals; if you have to look in two apps, you will not.
  3. Where does the data live? A mood log is sensitive. Privacy posture matters, especially when AI-summary apps need to send your data to a server. Apple's App Store privacy section is the first place to check (developer-declared)2024; Mozilla's Privacy Not Included project documents the recurring failure modes in mental-health apps2024.

What we are not optimizing for

  • Beauty. Every app on this list is well-designed. That is not a useful tiebreaker.
  • Star ratings on the App Store. Star ratings reflect general satisfaction, not fit-for-purpose for bipolar disorder.
  • Pricing alone. Most of these apps have a useful free tier. The right question is what each tier covers, not which has the lowest sticker.

Detailed comparisons

What to do next

If you have not tried any of these, a reasonable starting move is to pick the one whose design choices most directly match your situation, log for two weeks, and bring the result to your next visit. Smartphone-monitoring research consistently finds that low-friction logging is what people stick with2015. The best tracker for you is the one you keep using.

If MoodSync is the closest match for you, the step-by-step guide to tracking bipolar moods is the next page worth reading.

Sources

  1. Apple Inc. (2024). App privacy details on the App Store, Apple Developer Documentation. link
  2. Mozilla Foundation (2024). Privacy Not Included: mental health apps, Mozilla Foundation. link
  3. Faurholt-Jepsen M, Frost M, Vinberg M, et al. (2015). Smartphone-based self-monitoring in bipolar disorder: an RCT, JAMA Psychiatry. link