# Qaly | ECG Reader vs TachyMon

The clearest difference is rating: Qaly | ECG Reader at 4.7 against TachyMon's 3.8. Qaly | ECG Reader also leads on in-app purchases (none vs 2) and update cadence (fortnightly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. TachyMon sells 2 in-app purchases, starting at $2.99 per month. Qaly | ECG Reader asks for nothing beyond the download.

Qaly | ECG Reader holds the better App Store score, 4.7 against 3.8. Both are backed by a comparable volume of ratings — 861 and 286 respectively. Written reviews point the same way: 76% of Qaly | ECG Reader's written reviews are positive against 57% of TachyMon's.

Qaly | ECG Reader ships an update fortnightly, TachyMon every 3 months. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Qaly | ECG Reader | TachyMon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (861 ratings)](https://appshunter.io/ios/app/qaly-ecg-reader/id1542440769/reviews)** | [3.8 (286 ratings)](https://appshunter.io/ios/app/tachymon/id1603517412/reviews) |
| Number of ratings | **861** | 286 |
| Positive reviews | **75.8% of reviews** | 57.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 96 MB | 36 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 17+ | 9+ |
| Developer | [Qaly, Inc.](https://appshunter.io/developer/1542398773) | [Whip Development Inc.](https://appshunter.io/developer/1603514887) |

## 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


### TachyMon

[App page](https://appshunter.io/ios/app/tachymon/id1603517412)

Receive immediate alerts for significant heart rate fluctuations, ideal for conditions like POTS or during exercise. Customize thresholds and receive detailed event tracking. Premium features offer advanced data visualization and reporting.

**Highlights:** Customizable heart rate threshold alerts, Haptic feedback for alerts, Real-time heart rate and average display, Alert event tracking and logging, Temporary alert silencing, Detailed monitoring data review, Shareable PDF reports (premium)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TachyMon Premium Monthly | $2.99 | per month |
| TachyMon Premium Annual | $19.99 | per year |

**What reviewers like**

- 🚀 Continuous monitoring
- 🚨 Helpful alerts for heart rate spikes/drops
- 📊 Useful data tracking and visualization
- 🤖 Customizable settings and thresholds
- 💯 Accurate heart rate measurements

**What reviewers complain about**

- 🔋 Drains Apple Watch battery quickly
- 🔒 Paywalled features that were previously free
- 🤯 Buggy and unreliable at times
- 📱 Lack of companion iPhone app for data review
- 🔇 Limited notification/alert customization

**Reported bugs**

- Frequent disconnections from heart rate monitor
- Inconsistent data sync between watch and phone
- Inability to reinstall app on new devices
- Freezing and crashing issues on latest updates

**Requested features**

- Add ability to log symptoms and notes
- Implement emergency contact alerts
- Improve data export and sharing options
- Enhance graphing and trend analysis tools
- Optimize battery usage and background monitoring


## Frequently asked questions

### Is Qaly | ECG Reader free?

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

### Is TachyMon free?

TachyMon is free to download, with in-app purchases available.

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

Qaly | ECG Reader is rated higher. Qaly | ECG Reader averages 4.7 out of 5 from 861 ratings, while TachyMon averages 3.8 from 286 ratings.

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

Neither Qaly | ECG Reader nor TachyMon shows ads.

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

Qaly | ECG Reader ships an update fortnightly, and TachyMon every 3 months. Most recently, Qaly | ECG Reader was updated on September 22, 2026 and TachyMon on September 24, 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.*