HealthLog is described as follows:
A Companion App for a Healthy LifestyleHealthLog has a rating of 4.5 stars in Google Play and 2.8 stars in the Amazon Appstore.
HealthLog is an ideal application to help you keep track of your daily health and exercise data. Whether you're looking to improve your fitness level or just maintain a healthy lifestyle, HealthLog has tools that can help. The easy-to-use and colorful interface makes it a cinch to track key data points so you can see where improvements can be made and make better decisions concerning your health. With HealthLog, you can conveniently and easily track your weight, exercise level, and health condition right on your Android device.
Track Key Data Points
HealthLog lets you enter as much or as little data as you like, and then track it. Start by entering the basics, such as your height, weight, gender, and a few other parameters. You can even add your last health checkup, and if a year has passed since, HealthLog will notify you. Moving forward, you can enter the type and length of exercises you performed, hours of sleep, amount of alcohol and water intake, mood, and much more. There are dozens of built-in data tracking points to select from.
Make Your Data Useful
The app includes graphs to make the most of your tracked data. HealthLog displays graphs in 1-, 3-, 6-, 9-, and 12-month increments to see fitness levels over time. There are seven different graph categories, including weight, BMI, blood pressure, workout sessions, and a variety of individual exercises.
Make sure HealthLog works for you by adjusting the settings as needed. You can choose which day marks the beginning of the week and adjust touch sensitivity. Keep your data secure by setting up a password and backing it up to your device's SD card.
A memo feature is also included so you can record notes, observations, and motivations to keep you on track.
Judging based on that, it sounds like the app is probably in the high 3, low 4 range. Why is it so low in the Amazon Appstore? There are 7 1-star ratings, and don't forget there are always at least 1 or 2 1-star ratings that are put there by regulars who do it for "fun."
Interestingly, at least one 1-star review was made because the app is $1.20 on Google Play and also has a later version: 1.0.31 vs. the Appstore's 1.0.29.
what it means to developers.
Amazon.com opened up the Appstore despite a lawsuit by Apple, which has previously trademarked the term "App Store." Microsoft has filed an appeal against that trademark, saying the term is too generic. Amazon.com has responded to the lawsuit in the same manner.