Juno vs JointSignal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Juno
This app provides a non-judgmental companion for individuals living with chronic illnesses. It offers a safe space to discuss symptoms, track health data, and gain insights without unsolicited advice. Designed by those who understand, it offers personalized support for daily challenges.
- AI-powered chronic illness companion
- Symptom and energy level logging
- Pattern and trigger identification
- Health diary and insights
- Voice or text conversations
- Personalized condition support
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Meet Juno, your personal health assistant for life with chronic illness - trusted by over 250,000 users globally. Text Juno the same way you would message a friend. Say, “My migraine is 7 out of 10 and started after lunch,” and Juno can log the symptom, severity, and context for you. Prefer talking? Use voice instead. Juno brings compassionate support, symptom tracking, medication management, energy pacing, health insights, and community into one place—without making you complete another exhausting form. LOG SYMPTOMS BY TEXT OR VOICE Too tired for forms? Simply describe what is happening in your own words. Use Juno to: - Log symptoms, pain, mood, energy, and health notes through conversation - Record symptom severity and useful context without navigating long forms - Talk through a difficult symptom day or 3 AM flare - Remember details from your health journey - Prepare questions and talking points for medical appointments Juno personalizes support using the conditions, symptoms, and routines you choose to share, so you don’t have to explain everything again each time. No toxic positivity. No judgment. No pressure to “push through.” Juno meets you where your energy is today. TRACK SYMPTOMS AND SPOT PATTERNS Build a simple health diary that works even through fatigue, pain, and brain fog. - Review your symptom history and explore trends - Compare symptoms with activities, medication, and cycle information - See how symptoms change across days and weeks - Create PDF symptom reports to share with your care team MANAGE MEDICATIONS Keep your medication routine in one place. - Add scheduled and as-needed medications - Set medication reminders and mark doses as taken - Review your medication history and consistency - Share an organized medication list when needed PACE YOUR ENERGY Juno understands spoon theory and the reality of post-exertional crashes. - Set your energy level - Plan tasks around your available spoons - Estimate the energy cost of activities - Build routines that respect your changing capacity CONNECT YOUR HEALTH DATA Bring supported health and wearable data including Apple Health, Oura, Garmin, Bearable, Visible and CareClinic into Juno for a more complete view of your day. Review sleep, steps, heart rate, and activity alongside the symptoms and context you record. FIND PEOPLE WHO GET IT Join a chronic illness community shaped around real lived experience. - Discover posts from people with similar conditions - Join condition-based groups - Share experiences, questions, and photos - Connect through replies, profiles, and private messages BUILT FOR CHRONIC AND INVISIBLE ILLNESS Juno supports people living with fibromyalgia, POTS and dysautonomia, ME/CFS, Long COVID, endometriosis, EDS and hypermobility, MCAS, FND, lupus, arthritis, migraine, IBS, MS, chronic pain, chronic fatigue, autoimmune conditions, neurological conditions, rare disease, and other chronic or invisible illnesses. PRIVATE, SECURE, AND IN YOUR CONTROL Your health data is private and secure. We take privacy seriously and do not sell your personal health information. Juno is a supportive health and wellness assistant, not a doctor or medical service. It does not diagnose, treat, or replace professional medical advice. If you may be experiencing an emergency, contact local emergency services. Join over 200,000 people using Juno to feel more understood, more organized, and less alone. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/](https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://junocompanion.com
JointSignal
This app helps you track daily health metrics for rheumatoid arthritis, including pain, fatigue, and joint stiffness. It generates detailed reports for your rheumatologist and integrates with Apple Health for a comprehensive overview of your condition. Your data remains private and is stored locally.
- Daily health metric tracking (pain, fatigue, stiffness)
- 28-joint count
- Apple Health integration (read-only)
- Visual calendar with condition overview
- Medication and adherence tracking
- Side effect and blood test logging
- Customizable reports for specialists
- Local data storage and iCloud backups
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An honest record of how you have actually been. A minute a day adds up to a picture nobody can reconstruct from memory in a fifteen-minute appointment. JointSignal turns your daily check-in into a report worth handing your rheumatologist. THE ONE RULE The app never fills in a blank for you. A question you skip stays unanswered — it never quietly becomes a zero, and a day you missed never appears on a chart as a good day. A report is only useful to a clinician if everything on it is something you actually said. WHAT IT TRACKS • The daily check-in — pain, overall status, fatigue, sleep and mood, each a single tap on a 0–10 scale, and morning stiffness in minutes. Flare days get a switch. Under a minute, by design. • The 28-joint count — every joint your rheumatologist scores, plus the neck and both feet, including the finger joints. Tap targets built for hands with active RA. • Apple Health, read-only — steps, walking speed, stair speed, sleep, heart rate and blood pressure sit directly under what you reported, on one shared time axis. The app requests no write access and never alters your Health record. • A calendar you can read at a glance — every day coloured by how bad it was, flare days marked, and gaps shown as gaps. • Medicines and adherence — dose by dose, with changes marked on every chart. A dose you never answered is excluded from the percentage, not counted as missed. • Side effects, bloods and appointments — with reference ranges, and reminders so a blood draw is never missed before a review. • Questions for your specialist — saved as they occur to you, then worked through in a view built for large type and one hand. • The weather, if you want it — temperature, humidity and air pressure under your pain score. The app shows both and draws no conclusion. • Your data, yours — export it as CSV or JSON, for a spreadsheet or an AI assistant. Blanks stay blank. • Backups that happen without you — one a day to your own iCloud Drive, thirty kept. THE REPORT Two or three pages of black ink on white paper: coverage, trends, joint counts, adherence, blood results with reference ranges, flare days and your notes. Every figure traceable to something you entered. Export it as a PDF and send it however you like. PRIVACY No account. No server. No analytics, no tracking, no third-party code of any kind. Your record lives on your phone, and your backups go to your own iCloud Drive. The developer never receives your health information — the app contains no code capable of sending it. Weather is optional and off by default. Switched on, it sends your approximate location — never anything you recorded — to Apple's weather service, and does not store it. WHAT IT IS NOT JointSignal does not diagnose anything and it is not medical advice. It records what you tell it and shows you the patterns. Your rheumatologist does the rest. DAS28 is calculated from joint counts you enter yourself, and is labelled self-reported everywhere it appears — it is not a substitute for your rheumatologist examining your joints. Never delay seeking medical attention because of something this app did or did not show you. WHY IT EXISTS I'm Scott. I have rheumatoid arthritis. I went looking for an app that would let me track it properly and could not find one — the apps I tried covered several conditions passably rather than one condition well, and none of them read Apple Health. So I wrote this one for myself, and then thought other people living with RA might want it too. SUBSCRIPTION JointSignal is free to download, and recording is free for your first 7 days with nothing to sign up for. After that, recording new days needs a subscription. A lapse never removes what you recorded — reading, the charts, the calendar, the report and every export stay yours. Terms of Use: https://jointsignal.app/terms Apple's standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://jointsignal.app/privacy
Screenshots
Verdict
The clearest difference is review sentiment: JointSignal at 100% against Juno's 70%. JointSignal also leads on update cadence (daily vs weekly). Juno's advantage is chart position (#145 vs unranked) and iOS requirement (16.4 vs 18.0). On price, ads, in-app purchases and monetization model 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
Both are free to download. Juno sells 10 in-app purchases, starting at $4.99 per 7 days and JointSignal sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
Juno ships an update weekly, JointSignal daily. The most recent releases landed on October 31, 2026 and October 23, 2026 respectively.
| Parameter | Juno | JointSignal |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (11K ratings) — better | — |
| Positive reviews | 69.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 11K — better | — |
| Update frequency | Weekly | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Best chart rank | #145 — better | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.4 — better | 18.0 |
| Further details — not scored | ||
| Size | 252 MB | 10 MB |
| Age rating | 17+ | 12+ |
| Developer | Marshall Gould | SCOTT NATHAN HAINES |
Customer experience
Juno
JointSignal
Bugs and requests
Juno
Reported bugs
2 issues- Inability to save profile details
- Paid features not working as expected
Requested features
2 requests- Improve free access and pricing model
- Fix bugs and stability issues
JointSignal
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Juno
- Juno Pro Weekly$4.997 Days
- Juno Pro Weekly$6.997 Days
- Juno Pro Monthly Discounted$9.991 Month
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- Juno Pro Monthly2 variants$14.991 Month
- Juno Pro Monthly$19.991 Month
- Juno Pro Yearly Discounted7 Days trial$39.991 Year
- Quarterly3 Days trial$44.993 Months
- Juno Pro Yearly3 Days trial$99.991 Year
- Juno Pro Yearly7 Days trial$99.991 Year
- Juno Pro - Yearly Special$59.99
JointSignal
- JointSignal Monthly14 Days trial$3.991 Month
- JointSignal Annual14 Days trial$39.991 Year









