# MAF180 — Aerobic Training  for Marathon

> Apple Watch aerobic heart rate training and MAF 180 formula guidance. (iPhone/iPad app by 同庆 牛.)

- Source: https://appshunter.io/ios/app/maf180/id1542742088 (this page in markdown: same URL + `.md`)
- Developer: [同庆 牛](https://appshunter.io/developer/1107854207)
- Category: Health & Fitness, Sports
- Price: $0.99
- Rating: 3.20/5 from 5 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 3 MB
- Languages: English
- Released: 2020-12-04
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/maf180/id1542742088/reviews.md

## What is MAF180?

Get a real aerobic heart-rate monitoring training with your Apple Watch! 

Measuring with Apple Watch

MAF180 reads all Workouts data from the Apple HealthKit, including heart rate, run distance, active energy burned etc. Thanks to Apple HealthKit, with API provided by HealthKit this app get all information needed.

Your Apple Watch taps you on the wrist when heart rate exceed the high HR value. You can leave your iPhone at home when you go for training!

Features:
-	High HR Warning: vibrate and color indicate
-	Metronome: Beep voice to help your step frequency
-	Work-route: Location saved to your workout with the help of HealthKit, so you can view route information with Fitness or other applications on your iPhone later.

A heart-rate monitor is the most important tool for developing optimal endurance and better fat-burning. This app is a valuable tool that not only guides your training but is part of an important assessment process, and can even be used in some competitive situations. 

This “MAF 180 Formula” enables athletes to find the ideal maximum aerobic heart rate in which to base all aerobic training. When exceeded, this number indicates a rapid transition towards anaerobic work.

The MAF 180 Formula for determining your MAF HR

Subtract your age from 180, then modify from one of the categories below:

-	If you have or are recovering from a major illness (heart disease, any operation or hospital stay, etc.), are in rehabilitation, are on any regular medication, or are in Stage 3 (chronic) overtraining (burnout), subtract an additional 10.

-	If you are injured, have regressed or not improved in training (such as poor MAF Tests) or competition, get more than two colds, flu or other infections per year, have seasonal allergies or asthma, are overfat, are in Stage 1 or 2 of overtraining, or if you have been inconsistent, just starting, or just getting back into training, subtract an additional 5.

-	If you have been training consistently (at least four times weekly) for up to two years without any of the problems mentioned in a) or b), no modification is necessary (use 180 minus age as your MAF HR).

-	If you have been training for more than two years without any of the problems listed above, have made progress in your MAF Tests, improved competitively and are without injury, add 5.

The MAF 180 Formula may need to be further individualized for athletes over the age of 65. For some, up to 10 beats may have to be added for those only in category (d) of the Formula. This does not mean 10 should automatically be added, but that an honest self-assessment be made.
For athletes 16 years of age and under, the formula is not applicable; rather, an MAF HR of 165 has been used.

## Key features

- Aerobic heart-rate monitoring with Apple Watch
- High HR warning with vibration and color
- Metronome for step frequency
- Workout route saving via HealthKit
- MAF 180 formula calculation

## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/maf180/id1542742088/reviews.md

### 5/5 — Love this app

*2021-11-13*

Been using this for a while and it’s really simple and great. 

Any chance to add a setting to the app to enable water lock mode? I want to try this with swimming in zone two and it would also help with running in the rain. Thanks!

**Developer response:** Many thanks for your reply，I would like to consider it in next weeks.

### 2/5 — Continuing problems as January 21

*2021-09-28*

Hi!  

Love the concept—but problem continues with no signaling at key rates.  
Silent mode is off—haptics set to normal.  Help? I’d love to make this work.

### 2/5 — How do I review a run?

*2021-07-09*

I ran a 5K this evening with the app but there’s seems to be no way to review the run after the fact. I agreed to the location sharing hoping I’d be able to upload the run to Strava but the Apple Watch app offers zero way to see anything after the fact besides the summary which I mistakenly (I guess) just exited out of without looking at it. I did save the run though, but I have no clue where that goes. It’s disappointing to say the least.

### 3/5 — Concept Good But alerting while running

*2021-03-20*

Good concept but I don’t get the alerts while running.  Haptics are enable and I’m not in silent mode.  I have a 3 series watch.

### 1/5 — It’s gone

*2021-03-12*

Bought this app but will not load on watch, no assistance given

### 5/5 — Very sample

*2021-02-12*

It takes long time to find a heart training on AW like this. The design is very sample but useful.

**Developer response:** Glad to know you like it, many thanks.

### 4/5 — Zone violation alerts not timely

*2021-01-22*

Dear Tongqing, I’m not sure how to contact you and am writing here instead. Your app has the right design that I need for MAF training, namely, to stay within a narrow heart rate zone just below the MAF threshold. Unfortunately, there are a couple problems and I was wondering if there is a way around them or you could implement the next version so as to avoid them:

(1) The alerts for exceeding the high bpm or dipping below low bpm don’t automatically happen, i.e., the alert happens only if you happen to turn your wrist and look at that watch when the limit has already been exceeded. At first I thought, looking at the watch was making my heart rate go up, but it’s pretty clear that the app seems to not have a way of alerting if the display sleeps. 

Is this expected? Having to look at the watch all the time is very frustrating and defeats the whole point of the app for me, not to mention that it is even harder to do it in winter.

(2) Often the app displays no value but instead something like “1..” as if it’s not sure of the latter two digits of precision. What exactly is going on in such situations?

You can contact me at avenka at gmail and I’d be happy to offer more suggestions and/or (freely) help with implementing them. Thanks.

**Developer response:** Hi Avenka,
Many thanks to your feedback. Here are the two issues you mentioned, and below is the tips and bug fixing.

(1) The alerts for exceeding the high bpm or dipping below low bpm don’t automatically happen, i.e., the alert happens only if you happen to turn your wrist and look at that watch when the limit has already been exceeded. At first I thought, looking at the watch was making my heart rate go up, but it’s pretty clear that the app seems to not have a way of alerting if the display sleeps. Is this expected? Having to look at the watch all the time is very frustrating and defeats the whole point of the app for me, not to mention that it is even harder to do it in winter. 

Yes, watching the watch to get alerted is not the design. Usually, it dose not need to watch it. It will give vibratility tips when high rate be exceeded. If not, there are maybe a setting need to check. You need to check whether 'mute' mode is set on Watch. 
Open your Watch App on iPhone and go "Setting" ---> "Sounds & Haptics" to enable "Haptic Alerts". If doesn't work, maybe you need to disable "Silent Mode"
 
(2) Often the app displays no value but instead something like “1..” as if it’s not sure of the latter two digits of precision. What exactly is going on in such situations? You can contact me at avenka at gmail and I’d be happy to offer more suggestions and/or (freely) help with implementing them. Thanks.

Sorry for that, it is a display bug on some devices. I tested on my Watch5 while it does fails on Watch3 with 38mm. I fixed this bug and resubmit to Apple Store. 

Many thanks, if you have other suggestions, I would like to implement since we are liking running and wish you good health.

You can reach me anytime at life4happy at 126.com.

## Frequently asked questions about MAF180

### What is the MAF180 formula?

The MAF180 formula helps determine your ideal maximum aerobic heart rate by subtracting your age from 180, with adjustments based on your health and training status. This number is crucial for optimizing endurance and fat-burning during aerobic training.

### How does MAF180 use my Apple Watch?

MAF180 connects to your Apple Watch to read workout data, including heart rate, distance, and active energy burned, directly from Apple HealthKit. This allows for real-time monitoring during your training sessions.

### Can I use MAF180 without my iPhone?

Yes, you can leave your iPhone at home when you go for training. Your Apple Watch will provide wrist vibrations and visual cues to alert you if your heart rate exceeds the set high HR value.

### What is the price of MAF180?

MAF180 is a paid application priced at $0.99. This one-time purchase grants you access to all its features for aerobic heart-rate monitoring and training guidance.

### What devices does MAF180 support?

MAF180 is designed to work with Apple devices, including the Apple Watch, iPhone, and iPod. It leverages the HealthKit integration available on these platforms.

### How often is MAF180 updated?

The latest version of MAF180 is 1.1.2, which was released on February 23, 2021. While the last update was in early 2021, the app's core functionality remains relevant for its intended purpose.

### What is the age rating for MAF180?

MAF180 has an age rating of 4+. This indicates that the content is generally suitable for all ages, with no mature themes or potentially objectionable material.

### Does MAF180 have ads?

No, MAF180 does not contain advertisements. As a paid application, it offers an uninterrupted user experience without any in-app ads.

## Version history (last 5 releases)

### 1.1.2 — 2021-02-23

Make vibrate type choice-able as well as sounds support.

### 1.1.1 — 2021-02-19

Add map support on outdoor running.

### 1.1.0 — 2021-02-10

Add more languages supported.

### 1.0.9 — 2021-02-05

1. Alert sounds adjustment
2. GPS locations more accurate

### 1.0.8 — 2021-02-02

1. Enable low HR warning
2. Set different beep sounds for High HR and Low HR
3. Enhancement Summary View to add more detailed data such as High HR and Low HR time.

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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 2026-06-10.*