Comparison

Immunally vs Onion

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Immunally

Effortlessly track symptoms, meals, medications, and lab results for autoimmune conditions. Gain clear insights into patterns and triggers to better manage your health and prepare for doctor appointments.

Highlights
  • Log symptoms, meals, medications, and labs
  • Connect Apple Health for automatic data import
  • Analyze patterns and detect triggers
  • Run elimination experiments
  • Prepare for doctor appointments with data summaries
  • Private and secure health data
Features
Read full description

Immunally helps you understand your autoimmune condition by turning everyday logs into clear, personal insight. Living with lupus, RA, ITP, thyroid disease, or another autoimmune condition means noticing what your body is telling you — and remembering it when it matters. Immunally makes that effortless. Log symptoms, meals, medications, and labs in seconds by voice, photo, or tap, and let the app surface the patterns you can't see day to day. WHAT YOU CAN DO • Log fast — speak it, snap a photo of a meal or lab report, or tap. No long forms. • Track symptoms and flares — severity, timing, and how you actually felt. • Connect Apple Health — bring in sleep, steps, heart rate, and more automatically. • Log medications — doses, changes, and adherence over time. • Add lab results — snap a photo and Immunally reads the values, then charts your trends. UNDERSTAND YOUR PATTERNS • Daily briefs that connect the dots between sleep, activity, diet, and how you feel. • Weekly and monthly reviews that summarize what changed and why it might matter. • Trigger detection — see which foods, habits, or factors tend to show up before a flare. • Experiments — run a simple elimination test (like cutting dairy) and get a clear result. WALK INTO APPOINTMENTS PREPARED • Doctor prep turns your data into focused questions worth asking. • Share a clean summary or export for your care team. PRIVATE BY DESIGN • Your health data is encrypted. • We never sell your data or use it for advertising. • You're always in control of what you track and share. Immunally is a tracking and insight tool, not a medical device. It does not diagnose, treat, or provide medical advice. Always consult your physician before making any change to your care. Made for people managing chronic autoimmune conditions who want to feel more in control — one log at a time.

About

Onion

This app helps you track your moods and journal your thoughts with simple check-ins and customizable options. It offers visual insights into your emotional patterns and allows for private, device-stored entries with optional iCloud backup.

Highlights
  • Simple mood check-ins
  • Personal journaling
  • Mood calendar and charts
  • Customizable moods and associations
  • Optional daily reminders
  • Device-only storage
  • iCloud backup option
  • Apple Health integration
Features
Read full description

Make room for how you feel. Onion is a mood tracker and personal journal for easy check-ins, little notes, and a clearer view of your days. Pick a face that fits your mood. Add feelings, a tag, an association, or a thought if you want to. Come back when you feel like looking back. A SMALL CHECK-IN Choose your mood, add optional feelings, tags, associations, and a note, then save. Check in more than once a day or add an entry for a day you missed. Start from a Home Screen widget or a shortcut when a moment comes to mind. ROOM FOR YOUR WORDS Write a sentence or a longer reflection. Browse your journal by day, search feelings, notes, tags, and associations, and edit an entry when you have more to say. Share a saved check-in with a preview that lets you decide whether to include your feelings, note, and tags. SEE YOUR RECORDED PATTERNS Explore a mood calendar, charts, and a year in pixels. Compare logged days with and without a tag or association, then revisit the entries behind a pattern. These are observations from your journal, not explanations of what caused a mood. TAGS THAT ARE YOURS Add reusable tags for games, places, people, or anything else on your mind. Create one as you check in, pick it again later, and filter your journal by tag. Manage your tag library in Settings. FEELINGS IN YOUR OWN MIX Choose from all 38 Apple State of Mind feelings. Select any combination, including mixed feelings. Feelings are optional and are never inferred from your notes or mood rating. MAKE IT FEEL LIKE YOU Create custom moods and choose from 18 associations, including Friends, Work, Health, and Self-Care. Pick the Onion artwork or classic faces. Set an optional daily reminder at a time that works for you. YOUR JOURNAL, YOUR CHOICES No account to create. Entries are stored on your device. iCloud backup is on by default when available and uses your own private CloudKit database; you can turn it off in Settings and reopen Onion for the change to take effect. Turning it off does not remove existing cloud copies or change device backups. Onion has no developer-run server, advertising SDK, or tracking SDK. Use the optional device-authentication lock to limit access and hide entries in the app switcher. Export CSV or JSON copies, import a journal backup, or delete your entries in Settings. Shared copies remain wherever you send them. Optionally save check-ins with selected feelings and associations to Apple Health as State of Mind. Choose a momentary emotion or an overall daily mood. Check sharing status, retry pending changes, or explicitly send existing entries. Personal tags and notes stay out of Health. Onion does not read your Health data or detect changes you make there. Journal dates can appear in on-device search only if you turn that option on; notes, moods, and associations are not indexed, and journal search is unavailable while the app lock is enabled. FOR EVERYDAY REFLECTION For people who want a gentle mood diary without turning each check-in into a writing assignment. Onion is for personal reflection, not diagnosis or treatment. The interface is currently in English. Support: https://fussbunny.app/support/ Privacy: https://fussbunny.app/privacy/

Screenshots

Immunally4 screens
Onion4 screens

Verdict

The call

The clearest difference is update cadence: Onion at every 2 days against Immunally's every 4 days. Immunally's advantage is ratings volume (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, rating, review sentiment and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Immunally against 5.0 for Onion. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Immunally ships an update every 4 days, Onion every 2 days. Both last shipped on October 31, 2026.

Scorecard3 real differences · 7 level
Immunally versus Onion: the parameters behind the verdict, then further details
ParameterImmunallyOnion
PriceFreeFree
Rating5.0 (3 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings3 — better1
Update frequencyEvery 4 daysEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better18.0
Further details — not scored
Size7 MB8 MB
Age rating12+12+
DeveloperImmunally LLCKeep It Beezy LLC

Customer experience

Immunally

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Onion

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Immunally

No in-app purchases

None

Onion

No in-app purchases

Questions

Is Immunally free?
Immunally is free to download, with no in-app purchases.
Is Onion free?
Onion is free to download, with no in-app purchases.
Which has better reviews, Immunally or Onion?
Immunally and Onion are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.
Do Immunally or Onion have ads?
Neither Immunally nor Onion shows ads.
Which is updated more often, Immunally or Onion?
Immunally ships an update every 4 days, and Onion every 2 days. Most recently, Immunally was updated on October 31, 2026 and Onion on October 31, 2026.

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