# TachyMon — Custom Heart Rate Alerts

> Customizable heart rate alerts for health monitoring and activity tracking. (iPhone/iPad app by Whip Development Inc..)

- Source: https://appshunter.io/ios/app/tachymon/id1603517412 (this page in markdown: same URL + `.md`)
- Developer: [Whip Development Inc.](https://appshunter.io/developer/1603514887)
- Category: Health & Fitness, Medical
- Price: Free with in-app purchases
- Rating: 3.80/5 from 284 App Store ratings · 201 written reviews indexed
- Age rating: 9+
- Requires: iOS 16.4 · 36 MB
- Languages: American English
- Released: 2022-07-08
- Data updated: 2026-08-31
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/tachymon/id1603517412/reviews.md

## What is TachyMon?

Get rapid alerts for significant heart rate changes due to POTS, tachycardia, exercise or other activities. 

Features:
- Haptic alerts based on custom threshold levels.
- Customizable upper and lower threshold levels for current heart rate and difference from recent average.
- The main display shows: current heart rate, moving average of recent heart rate, and delta of current heart rate to average.
- Display colors change to show severity of alert.
- The app tracks alert events with start time of event, event duration, starting average heart rate, and maximum or minimum heart rate during event.
- Triple tap to temporarily silence alerts.
- Review detailed monitoring data on the companion iPhone app.

Premium features:
- View detailed heart rate chart for each event
- Share event info directly from watch, or export from iPhone to Photos app
- Run monitoring sessions directly on your iPhone, without an Apple Watch, by connecting a Bluetooth heart rate sensor
- Generate a shareable PDF report for each session
- Add notes and symptoms to Alert Events
- Export Alert Event raw heart rate data to .csv
- View live session data on the iPhone companion app
- View a summary of Alert Events over last week / month / year

TachyMon was created by the developer for his niece Alex, who was diagnosed with Postural Orthostatic Tachycardia Syndrome (POTS) in the fall of 2021. Alex was experiencing frequent fainting, and her family noticed the episodes often followed a rapid rise in her heart rate. She wanted a heads-up the moment that started happening. Alex uses TachyMon's alerts as a cue to sit or crouch down when her heart rate climbs quickly, and she finds the app helps her feel a bit more in control of her day.

It is a simple but specialized app, and we hope it may help others with POTS, or anyone who wants to be alerted to changes in their heart rate.

APPLE HEALTH
TachyMon integrates with the Apple Health app. TachyMon stores workout information (including heart rate) with the Apple Health app.

WARNING: It is important to consult with medical professionals if you are concerned about your health. The TachyMon app is intended for informational purposes only. It is not a substitute for specialized medical care.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- 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)

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| TachyMon Premium Monthly | $2.99 | per month |
| TachyMon Premium Annual | $19.99 | per year |


## What do users think of TachyMon?

Overall sentiment: positive

**Pros**

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

**Cons**

- 🔋 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
- 🤔 Confusing to set up and use initially

**Commonly 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

**Most 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

## Recent user reviews (10 of 201)

All indexed reviews: https://appshunter.io/ios/app/tachymon/id1603517412/reviews.md

### 1/5 — Is it really free?

*2026-08-09, version 1.6.5*

It will not let me start a monitoring session unless I pay for a subscription. I’m reading responses from the all saying that monitoring remains free but it will not allow me to move forward without paying for the subscription.

### 5/5 — Life saving

*2026-07-27, version 1.6.5*

I have POTs and with this it helps me through normal day to day tasks to let me know if I am pushing my self too hard. With out it I wouldn’t have been able to get my symptoms to regulate it self naturally with out meds

### 1/5 — No free version

*2026-06-19, version 1.6.5*

I downloaded this app as a recommendation, once downloaded there is no free version. It shows you what you can get if you sign up for the subscription but that’s it. So disappointing.

### 3/5 — Can’t see my sessions in app

*2026-06-17, version 1.6.5*

I can’t see my sessions in app. Really frustrating

### 5/5 — Love

*2026-06-03, version 1.6.5*

This App and the exports helped me get my diagnosis after 6years of gaslighting. Thank you.

### 5/5 — Useful for other rhythm disorders!

*2026-05-30, version 1.6.5*

I don’t have POTS, but am having tachycardia spells related to another heart condition and this app allows me to document them then record an ECG on my Apple watch. So glad I found this!

### 5/5 — Thank you 🥺

*2026-05-09*

To the developer who has POTS, thank you. 
I’ve been using this app for about a month now and it has been so helpful. I know what my personal thrust holds are, and I’m aware of which heart rate is going potentially take me out… So it is so nice to be able to attempt to live in normal life and trust that the watch is going to alert me when needed. I no longer have to carry a pulse ox around with me. It’s just made it so much easier to live with a condition that’s not easy to live with. 
I had to reach out to customer service once and they got back to me almost immediately and guided me through my tech issue with ease, patience and kindness. 
The only small drawback is, I have noticed that the app is about 2 to 5 beats lower than what my pulse ox and BP cuff say. But that’s a non issue. 
It is really affordable and will great  for providing my cardiologist reports if necessary.

### 5/5 — Love love love

*2026-04-05, version 1.6.3*

My doctor will really appreciate the data!! I accidentally forgot about it during trial. Best adhd tax ever. 😂

### 5/5 — Terrific

*2026-04-02, version 1.6.3*

Only thing that would make this app better is when symptoms high notifying emergency contact in case of a fall

### 5/5 — Absolutely Accurate!

*2026-04-02, version 1.6.3*

I had a stress test recently and had the hospital verify that my TachyMon app was accurate. After 3 months of monitoring for POTS and SVT, it was awesome to hear it is accurate down to to the beat and moment.

## Frequently asked questions about TachyMon

### What does TachyMon do?

TachyMon provides custom alerts for significant changes in your heart rate. It's designed to help users monitor heart rate fluctuations related to conditions like POTS, tachycardia, or during exercise, offering timely notifications based on user-defined thresholds.

### What are the key features of TachyMon?

Key features include customizable upper and lower heart rate thresholds, haptic alerts, a main display showing current heart rate and its difference from the average, and tracking of alert events with detailed data. Premium features offer advanced charting, reporting, and direct iPhone monitoring.

### Is TachyMon free to use?

The app offers a free version with core features for heart rate monitoring and alerts. Additional advanced functionalities, such as detailed charts, PDF reports, and direct iPhone monitoring with Bluetooth sensors, are available through premium in-app purchases.

### What devices is TachyMon compatible with?

TachyMon is designed to work with Apple Watch for real-time alerts and data tracking. It also integrates with the Apple Health app to store workout information. A companion iPhone app is available for reviewing detailed monitoring data and accessing premium features.

### Who would benefit from using TachyMon?

This app is beneficial for individuals managing conditions like Postural Orthostatic Tachycardia Syndrome (POTS) or tachycardia, who experience rapid heart rate increases. It's also useful for athletes or anyone who needs to closely monitor their heart rate during physical activity or for general health awareness.

## Version history (last 5 releases)

### 1.6.7 — 2026-08-31

- Improved Bluetooth heart rate sensor connections
- Fixed an issue where some Bluetooth sessions could be missing heart rate data
- Other bug fixes and improvements

### 1.6.6 — 2026-08-16

What’s new in version 1.6.6:
Improved reliability for Bluetooth heart rate sensors:
- More dependable recording during long sessions
- Clearer connection status, with smoother reconnection if your sensor briefly drops
- A new alert if your sensor stops reporting a heart rate mid-session
Apple Watch:
- More reliable monitoring after the app restarts or recovers a session
Plus bug fixes and stability improvements throughout.

### 1.6.5 — 2026-05-27

- Add symptoms to alert events directly on the Watch
- New recent heart rate widget

### 1.6.3 — 2026-02-04

- Silence level 1 alerts on the iPhone
- bug fixes and performance improvements

### 1.6.2 — 2025-11-17

- Support for Apple Watch Ultra action button
- Updates for iOS 26 / watchOS 26
- Bug fixes

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## Related topics

[tachymon](https://appshunter.io/ios/topics/tachymon) · [heart rate monitoring apps like tachymon](https://appshunter.io/ios/topics/heart-rate-monitoring-apps-like-tachymon) · [tachycardia](https://appshunter.io/ios/topics/tachycardia) · [tahcar](https://appshunter.io/ios/topics/tahcar) · [syncopa](https://appshunter.io/ios/topics/syncopa) · [belt heartrate](https://appshunter.io/ios/topics/belt-heartrate) · [pots](https://appshunter.io/ios/topics/pots) · [syncope](https://appshunter.io/ios/topics/syncope)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*