# MoodSync > MoodSync is a privacy-first bipolar mood tracker for iOS. Log mood on a clinical-style scale alongside sleep and medication, spot correlations, and bring a clear picture to appointments. ## Guides - [Apple Health and mood tracking: what is possible today](https://getmoodsync.com/blog/apple-health-mood-tracker): Apple Health includes a State of Mind feature for daily mood logging. Here is what it does well, what it misses, and how it fits with a dedicated mood tracker. - [What "baseline" means in bipolar mood tracking](https://getmoodsync.com/blog/baseline-mood-bipolar): Your baseline is what your data looks like when nothing is wrong. Without it, you cannot tell what a bad week is. Here is how to find yours. - [The best mood trackers for bipolar disorder in 2026](https://getmoodsync.com/blog/best-mood-tracker-bipolar-2026): An editorial roundup of mood-tracking apps for bipolar disorder in 2026 — what each one is good at, and what to choose for which use case. - [BPD vs bipolar: why they get confused, and what tells them apart](https://getmoodsync.com/blog/bpd-vs-bipolar): Borderline personality disorder and bipolar disorder share symptoms but differ in pace, triggers, and treatment. Here is what tells them apart. - [Mood tracking for couples: should partners share the data?](https://getmoodsync.com/blog/couples-mood-tracking): Sharing mood data with a partner can help — and can backfire. Here is a balanced look at when it works, when it doesn't, and what guardrails matter. - [Hypomania checklist: 12 signs to watch with data](https://getmoodsync.com/blog/hypomania-checklist): A 12-item hypomania self-check, modeled on the same items the validated clinical scales use — paired with what to log to catch the cluster early. - [Mixed bipolar episodes: when high and low arrive together](https://getmoodsync.com/blog/mixed-bipolar-episode): Mixed states show up as energy and despair at the same time. Here is what they look like, why they are dangerous, and how tracking surfaces them. - [Mood tracker vs journal: which is right for you?](https://getmoodsync.com/blog/mood-tracker-vs-journal): Journaling and structured mood tracking solve different problems. Here is how to choose between them — or use them together. - [PMDD and bipolar: the overlap nobody talks about](https://getmoodsync.com/blog/pmdd-and-bipolar): PMDD and bipolar disorder share symptoms and frequently co-occur. Cycle-aware mood tracking is the cleanest way to tell what is doing what. - [How to prepare for a psychiatry appointment with your data](https://getmoodsync.com/blog/psychiatry-appointment-prep): Fifteen minutes goes fast. Here is a simple way to walk into your next psychiatry visit with mood, sleep, and meds data your clinician can read at a glance. - [Sleep and bipolar: the earliest warning signal worth watching](https://getmoodsync.com/blog/sleep-bipolar-early-warning): Sleep changes are one of the most consistent early-warning signs of a bipolar mood episode. Here is what the research shows and how to track it. - [Year-end mood review: looking back without spiraling](https://getmoodsync.com/blog/yearly-mood-review): A year of mood data can be useful — or it can be a recipe for rumination. Here is a structured way to do the review without getting pulled under. - [What clinical mood scales mean (and why a compact anchor beats 1–10)](https://getmoodsync.com/blog/clinical-mood-scale-explained): A plain-language explainer on the clinical mood scales — HAM-D, YMRS, ASRM, GAD-7 — and why a compact ordinal anchor is more honest than a 1–10 slider. - [Cyclothymia symptoms: between bipolar II and baseline](https://getmoodsync.com/blog/cyclothymia-symptoms): Cyclothymia is the chronic, lower-amplitude cousin of bipolar disorder. Here are the symptoms, why it gets missed, and how tracking helps. - [Do mood tracker apps actually work? (the honest answer)](https://getmoodsync.com/blog/do-mood-tracker-apps-work): Mood-tracker apps are oversold and undersold in equal measure. Here is what the research says about whether they help — and where they fall short. - [How long does a bipolar depressive episode last?](https://getmoodsync.com/blog/how-long-bipolar-depression): There is no single right answer. Bipolar depression varies widely in duration. Here is what the literature says — and how tracking helps you judge yours. - [How to track bipolar moods: a step-by-step guide](https://getmoodsync.com/blog/how-to-track-bipolar-moods): A clear, evidence-led guide to tracking bipolar moods day-to-day with clinical-style scales, sleep, and medication patterns. - [Lithium and weight: how to track the side effect honestly](https://getmoodsync.com/blog/lithium-weight-gain): Weight gain is a documented lithium side effect. Here is how to track it next to your mood data without making it the whole story. - [Manic vs hypomanic: what is the difference?](https://getmoodsync.com/blog/manic-vs-hypomanic): Mania and hypomania share most of the same signs. The lines between them are duration, severity, and what the episode costs you in daily life. - [How to track medication adherence without relying on memory](https://getmoodsync.com/blog/medication-adherence-tracking): Self-reported adherence is famously unreliable. Here are tactics for tracking psychiatric meds in a way that gives you and your clinician useful data. - [Reading your mood chart: patterns worth looking for](https://getmoodsync.com/blog/mood-chart-patterns): A mood chart is only useful if you know what you are looking at. Here are the recurring patterns worth spotting and what each one usually means. - [Why on-device privacy matters for a mood tracker](https://getmoodsync.com/blog/private-mood-tracker): Mood logs hold some of the most sensitive data a person ever writes about themselves. Here is what to look for in a genuinely private mood tracker. - [Signs of hypomania you might miss](https://getmoodsync.com/blog/signs-of-hypomania): Hypomania often hides as a good week until it isn't. Here are the subtle signs and how mood tracking surfaces the pattern early. - [Sleep restriction therapy and bipolar disorder (carefully)](https://getmoodsync.com/blog/sleep-restriction-bipolar): Sleep restriction therapy is a real treatment for insomnia. For bipolar disorder it is a tool to use only with clinical supervision. Here is why. - [Why most mood trackers fail people with bipolar](https://getmoodsync.com/blog/why-mood-trackers-fail-bipolar): Generic mood diaries collapse the things bipolar disorder moves on. Here are the four design choices that miss, and what to look for instead. ## Comparisons - [MoodSync vs Bearable: bipolar mood tracker or chronic-illness tracker?](https://getmoodsync.com/vs/bearable): An editorial comparison of MoodSync and Bearable — when bipolar-first depth is the right choice, and when chronic-illness symptom tracking is. - [MoodSync vs Bipolar Mood Companion](https://getmoodsync.com/vs/bipolar-mood-companion): An editorial comparison of MoodSync and Bipolar Mood Companion — clinical-style scales and on-device privacy versus AI-generated daily insights. - [MoodSync vs Daylio: which mood tracker for bipolar disorder?](https://getmoodsync.com/vs/daylio): A side-by-side editorial comparison of MoodSync and Daylio — built for bipolar patterns, useful for structured anxiety or BPD tracking alongside clinical care. - [MoodSync vs eMoods: which bipolar mood tracker fits you?](https://getmoodsync.com/vs/emoods): An editorial comparison of MoodSync and eMoods, two bipolar-focused mood trackers — what each does well and where they differ. - [MoodSync vs How We Feel: clinical scales or emotional vocabulary?](https://getmoodsync.com/vs/how-we-feel): An editorial comparison of MoodSync and How We Feel — when bipolar-first clinical scales fit, and when an emotion-vocabulary app is the right tool. - [MoodSync vs Moody: which bipolar mood tracker?](https://getmoodsync.com/vs/moody): An editorial comparison of MoodSync and Moody for bipolar mood tracking — what each app prioritizes and where they differ. ## Features - [Mood tracking on Apple Watch](https://getmoodsync.com/features/apple-watch): A standalone watch app with five mood capsules, a streak chip, and a watch-face complication — log a mood in one tap without taking out your phone. - [Two-layer mood scale: quick capture + clinical detail](https://getmoodsync.com/features/bipolar-mood-scale): MoodSync starts with a one-tap 1–5 mood, then lets you add 0–3 clinical scales for depression, elevation, irritability, and anxiety when you want them. - [Calendar with forgiving streaks](https://getmoodsync.com/features/calendar-streaks): A monthly calendar view of every mood log, with a streak that doesn't punish you for the day you didn't have it in you to log. - [Insights with research citations (Pro)](https://getmoodsync.com/features/insights-citations): MoodSync's Pro insight cards — trend, best/hardest day, sleep patterns, medication impact, prodrome warning — each link to the research they rest on. - [Privacy posture](https://getmoodsync.com/features/privacy): How MoodSync handles your data: mood entries stay on your device, with optional private iCloud sync. - [Sleep and meds, plotted next to mood](https://getmoodsync.com/features/sleep-meds-correlation): How MoodSync surfaces the connections between sleep, medication adherence, and mood scales — on the same chart, day by day. - [Visit prep view](https://getmoodsync.com/features/visit-prep): Walk through mood, sleep, and meds patterns at your next psychiatry visit — then hand over a clinician PDF report. CSV export of the raw data stays free. - [Home & Lock Screen widgets](https://getmoodsync.com/features/widgets): Streak and Quick Log widgets for Home and Lock Screen — your logging streak stays visible, and one tap on a mood deep-links straight into a new entry. - [Year in Pixels, built for bipolar](https://getmoodsync.com/features/year-in-pixels): The bullet-journal Year in Pixels grid, automated — every day of the year colored by your 1–5 mood, drawn from entries you already logged. Part of Stats. ## Who it’s for - [MoodSync for anxiety tracking](https://getmoodsync.com/for/anxiety): How MoodSync handles anxiety as a first-class metric alongside mood, sleep, and meds — not as a single check-box on a generic diary. - [MoodSync for people with bipolar disorder](https://getmoodsync.com/for/bipolar): How MoodSync helps people with bipolar I, II, or cyclothymia track mood, sleep, and meds — then walk into a psychiatry visit with the last month already mapped. - [MoodSync for borderline personality disorder](https://getmoodsync.com/for/bpd): How MoodSync works for BPD: tracking emotional intensity, irritability, and rapid shifts without flattening them into one daily mood. - [MoodSync for clinicians](https://getmoodsync.com/for/clinicians): What to expect when a patient brings MoodSync to a visit: which scales it uses, where its limits are, and how to read its charts in 30 seconds. - [MoodSync for sleep and mood tracking](https://getmoodsync.com/for/sleep-tracking): How MoodSync turns nightly sleep hours into a leading indicator for mood shifts and bipolar episode early warnings.