# Qaly | ECG Reader vs Visible

Qaly | ECG Reader and Visible both sit at 4.7 stars, but that hides the real split: 89% of Visible's written reviews are positive against 75% of Qaly | ECG Reader's. Visible also leads on ratings volume (3.7K vs 876) and iOS requirement (15.1 vs 17.6). On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.7 for Qaly | ECG Reader against 4.8 for Visible. Both are backed by a comparable volume of ratings — 876 and 3.7K respectively. Written reviews are what separate them: 75% of Qaly | ECG Reader's written reviews are positive against 89% of Visible's.

Qaly | ECG Reader ships an update every 9 days, Visible fortnightly. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Qaly | ECG Reader | Visible |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (876 ratings)](https://appshunter.io/ios/app/qaly-ecg-reader/id1542440769/reviews) | **[4.8 (3.7K ratings)](https://appshunter.io/ios/app/visible-pacing-for-illness/id1624474919/reviews)** |
| Number of ratings | 876 | **3.7K** |
| Positive reviews | 74.8% of reviews | **88.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | Free | Free |
| Size | 101 MB | 205 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Qaly, Inc.](https://appshunter.io/developer/1542398773) | [Visible Health Inc. (US)](https://appshunter.io/developer/1450835678) |

## What reviewers say

### Qaly | ECG Reader

[App page](https://appshunter.io/ios/app/qaly-ecg-reader/id1542440769)

Get your ECGs analyzed by certified experts within minutes for peace of mind. This app supports various devices like Apple Watch and Fitbit, offering detailed interpretations of palpitations and abnormal heart rhythms. Track heart rate variability to monitor stress and recovery.

**Highlights:** Expert ECG interpretation, Supports Apple Watch, Fitbit, Kardia, and more, Analysis of 30+ heart rhythms, Heart rate variability (HRV) tracking, Shareable reports for doctors, Integration with Health app

**Features:** Apple Wallet

**In-app purchases:** none

**What reviewers like**

- 🚀 Quick response times
- 👍 Helpful and reassuring technicians
- 💡 Provides peace of mind
- 👍 Detailed and informative ECG analysis
- 👍 Easy to use app

**What reviewers complain about**

- 🐛 Inconsistent ECG analysis
- 🔍 Lack of transparency around pricing
- 🔍 Difficult to cancel subscription
- 🕰️ Long wait times for ECG reviews
- 🔍 Requires access to Apple Health data

**Reported bugs**

- App crashes on launch
- Issues deleting account and data
- Subscription charges not stopping after cancellation

**Requested features**

- Dark mode option
- Ability to view past ECG history
- Integration with more wearable devices
- Option to request a specific technician review


### Visible

[App page](https://appshunter.io/ios/app/visible-pacing-for-illness/id1624474919)

This app helps individuals with energy-limiting health conditions manage their daily activity and rest. It provides personalized insights, tracks biometrics like heart rate variability, and logs symptoms to help users understand their body and avoid crashes. Users can generate health reports to share with their doctors and opt-in to research studies.

**Highlights:** Measure heart rate variability (HRV), Track resting heart rate, Log symptoms and medication, Analyze daily exertion patterns, Generate long-term health reports, Participate in research studies, Real-time pacing notifications (with band)

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Helpful for pacing and managing energy levels
- 👍 Easy to use and customizable
- 🚀 Provides valuable data and insights
- 👍 Responsive and supportive development team
- 🚀 Useful for communicating with doctors

**What reviewers complain about**

- 🐛 Occasional technical issues and glitches
- 💡 Lack of integration with wearable devices
- 🔋 Concerns about privacy and data usage
- 💡 Need for more advanced features and reporting

**Reported bugs**

- App crashes or freezes on certain devices
- Heart rate measurement issues with multi-camera phones
- Inconsistent sync and data tracking

**Requested features**

- Dark mode option
- Ability to track sleep quality and patterns
- Integration with Apple Health or other health platforms
- More customization options for symptoms and activities
- Improved data export and sharing capabilities


## Frequently asked questions

### Is Qaly | ECG Reader free?

Qaly | ECG Reader is free to download, with no in-app purchases.

### Is Visible free?

Visible is free to download, with no in-app purchases.

### Which has better reviews, Qaly | ECG Reader or Visible?

Visible is rated higher. Qaly | ECG Reader averages 4.7 out of 5 from 876 ratings, while Visible averages 4.8 from 3.7K ratings.

### Do Qaly | ECG Reader or Visible have ads?

Neither Qaly | ECG Reader nor Visible shows ads.

### Which is updated more often, Qaly | ECG Reader or Visible?

Qaly | ECG Reader ships an update every 9 days, and Visible fortnightly. Most recently, Qaly | ECG Reader was updated on November 7, 2026 and Visible on November 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*