Comparison

Juno vs Sophie

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

Sophie

This app uses your body temperature data from smart wearables to accurately track your ovulation and menstrual cycle. It provides personalized insights, learns your unique rhythm, and offers an AI companion for health questions. It also integrates astrological data and allows partner sharing.

Highlights
  • Temperature-verified ovulation tracking
  • Personalized cycle rhythm measurement
  • AI companion for health questions
  • Smart wearable integration (Oura, Fitbit, etc.)
  • Manual data entry option
  • Astrology and lunar phase integration
  • Partner sharing options
Read full description

Most cycle apps guess. Sophie checks. Sophie Premium starts with a 7-day free trial, then continues as a yearly or monthly subscription. Sophie reads the nightly body temperature from your smart ring or watch and looks for the shift that proves ovulation actually happened — then adjusts everything downstream to where you really are in your cycle, not where a calendar assumed you'd be. WHAT MAKES SOPHIE DIFFERENT • Ovulation you can trust — confirmed from your own temperature data, not predicted from a 28-day average. Sophie learns your personal ovulation window from your confirmed cycles and gets sharper every month. • Your rhythm, measured — most apps assume a 14-day luteal phase. Sophie measures yours, because bodies don't read textbooks. • Sophie, your AI companion — ask her anything about what your body is doing, and she answers with your own calendar and charts: your fertile window, your best days, when to take an LH test. She remembers your history, your symptoms, and what you told her last week. • Wearables welcome, not required — works with Oura, WHOOP, Apple Watch, Samsung Health, Ultrahuman, RingConn and Fitbit, and works perfectly well on cycle dates you enter yourself. • The sky, too — your natal chart, lunar phases and daily astrology, woven in beside the biology for the days you want meaning as well as data. • Bring your partner — share exactly as much as you choose, and they get real guidance on how to show up for you. BUILT ON HONESTY Sophie tells you when she doesn't know. When your data is disturbed or the temperature shift hasn't arrived yet, she says so — instead of inventing certainty you might plan your life around. YOUR DATA IS YOURS We don't sell your data and we never will. No data brokers, and no tracking you across other apps: to see which of our ads work, we count installs and purchases without your advertising ID. SOPHIE PREMIUM Everything described above is part of Sophie Premium, an auto-renewing subscription. • Start with a 7-day free trial. • Then $59.99 per year or $9.99 per month (US prices; local prices may differ). • Payment is charged to your Apple Account when the free trial ends. The subscription renews automatically unless you turn it off at least 24 hours before the end of the current period. Manage or cancel any time in your Apple Account settings. Sophie is a wellness and cycle-awareness app. It is not a contraceptive, is not a medical device, and does not diagnose or treat any condition. Terms of Use: https://www.predicther.ai/terms.html Privacy Policy: https://www.predicther.ai/privacy.html

Screenshots

Juno4 screens
Sophie4 screens

Verdict

The call

Juno and Sophie both sit at 4.8 stars, but that hides the real split: 100% of Sophie's written reviews are positive against 70% of Juno's. Sophie also leads on update cadence (every 2 days vs weekly). Juno's advantage is ratings volume (10K vs 6) and chart position (#123 vs unranked). On price, rating, ads and in-app purchases 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. Juno sells 10 in-app purchases, starting at $4.99 per 7 days and Sophie sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Juno against 4.8 for Sophie. That said, the two scores are not equally well evidenced: Juno has 10K ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 70% of Juno's written reviews are positive against 100% of Sophie's.

UpkeepUpdate frequency

Juno ships an update weekly, Sophie every 2 days. Both last shipped on October 25, 2026.

Scorecard4 real differences · 7 level
Juno versus Sophie: the parameters behind the verdict, then further details
ParameterJunoSophie
PriceFreeFree
Rating4.8 (10K ratings)4.8 (6 ratings) — better
Positive reviews70.0% of reviews100.0% of reviews — better
Number of ratings10K — better6
Update frequencyWeeklyEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
Best chart rank#123 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size244 MB149 MB
Age rating17+12+
DeveloperMarshall GouldPredictHer LLC

Customer experience

Juno

All ratings10,337 ratings
Positive95.7%
Neutral2.8%
Negative1.5%
Written reviews390 reviews
Positive70.0%
Neutral6.4%
Negative23.6%

Sophie

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

Sophie

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Juno

Subscriptions9
  • Juno Pro Weekly$4.997 Days
  • Juno Pro Weekly$6.997 Days
  • Juno Pro Monthly Discounted$9.991 Month
Show 6 more
  • 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
One-time1
  • Juno Pro - Yearly Special$59.99
3 purchases

Sophie

Subscriptions2
  • Premium - Monthly7 Days trial$9.991 Month
  • Premium - Annual7 Days trial$59.991 Year
One-time1
  • 30 Sophie Voice Minutes$4.99

Questions

Is Juno free?
Juno is free to download, with in-app purchases available.
Is Sophie free?
Sophie is free to download, with in-app purchases available.
Which has better reviews, Juno or Sophie?
Sophie is rated higher. Juno averages 4.8 out of 5 from 10K ratings, while Sophie averages 4.8 from 6 ratings.
Do Juno or Sophie have ads?
Neither Juno nor Sophie shows ads.
Which is updated more often, Juno or Sophie?
Juno ships an update weekly, and Sophie every 2 days. Most recently, Juno was updated on October 25, 2026 and Sophie on October 25, 2026.

Other comparisons