Comparison

ECG vs Juno

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

Head to head
About

ECG

Easily record symptoms experienced during a Holter monitoring session. This tool helps transmit your symptom notes to your clinician for review alongside your ECG recording. It does not provide diagnoses or medical advice and is not for emergencies.

Highlights
  • Record symptoms during Holter monitoring
  • Transmit symptom notes to clinician
  • Convenient symptom logging tool
  • Compatible with iPhone and iPad
Features
Read full description

The ECG On-Demand® Tracker app will allow you to easily record symptoms during the Holter recording session. When feeling unwell, note your symptoms in the tracker app. The function of this App is to provide a convenient tool to record your symptoms and transmit them to the clinician who will be reviewing your ECG recording at the end of the monitoring period. This App does not notify a clinician at the time you are experiencing symptoms. This App does not provide a diagnosis or medical advice. In case of a medical emergency, please seek immediate medical attention.

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

Screenshots

ECG3 screens
Juno4 screens

Verdict

The call

The clearest difference is in-app purchases: ECG at none against Juno's 11. ECG also leads on iOS requirement (9.0 vs 16.4). Juno's advantage is update cadence (weekly vs every 3 months) and chart position (#135 vs unranked). On price, review sentiment, ads and device support 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. ECG asks for nothing beyond the download.

UpkeepUpdate frequency

ECG ships an update every 3 months, Juno weekly. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.

Scorecard5 real differences · 6 level
ECG versus Juno: the parameters behind the verdict, then further details
ParameterECGJuno
PriceFreeFree
Rating—4.8 (10K ratings) — better
Positive reviews66.7% of reviews69.9% of reviews — better
Number of ratings—10K — better
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank—#135 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better16.4
Further details — not scored
Size51 MB236 MB
Age rating4+17+
DeveloperTechnomed LtdMarshall Gould

Customer experience

ECG

Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Juno

All ratings10,208 ratings
Positive95.7%
Neutral2.8%
Negative1.5%
Written reviews385 reviews
Positive69.9%
Neutral6.2%
Negative23.9%

Bugs and requests

ECG

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

ECG

No 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

Questions

Is ECG free?
ECG is free to download, with no in-app purchases.
Is Juno free?
Juno is free to download, with in-app purchases available.
Do ECG or Juno have ads?
Neither ECG nor Juno shows ads.
Which is updated more often, ECG or Juno?
ECG ships an update every 3 months, and Juno weekly. Most recently, ECG was updated on October 14, 2026 and Juno on October 19, 2026.

Other comparisons