KetoLogger will help you quickly and easily log and graph your ketone and glucose readings.

Enter your glucose and ketone readings with ease via the simple to use entry screens. Both mg/dL and mmol/L glucose units are supported.

The graph tab helps you visualize your glucose vs. ketone readings with a line graph. Quickly see how you're doing with a glance. Jump quickly between date ranges to get the best picture of your progress.

The history view lets you see your readings. Either glucose, ketones or using a "Both" view. In the Both view matching glucose/ketones readings are paired and the GKI is calculated.

You can easily export all your readings in CSV format.

If there's a feature that's missing please let us know at:

What’s New

Version 1.0.4

Various fixes and improvements including:
- Tap the date cell in history view to change date ordering.
- In the Both history view tap a Ketone or Glucose value to edit.
- Remember the reading type in the history view. i.e: Glucose/Ketones/Both.
- Remember last selected tab.
- Easily add an app review from the "More" tab.
- Easily "tell a friend" from the "More" tab.
- Show a notification that user can scroll down to delete a record while editing.

Ratings and Reviews

4.9 out of 5
72 Ratings
72 Ratings
RainbowPeacock7 ,

Simple Great App!

I make it a rule not to buy apps that do not offer free samples, and this one doesn't. I hesitated for a few days before I hit the "Buy" button, but I'm glad I did.

I had been searching for an app to log blood ketone and glucose levels. I've been on a low carb diet. I wanted to 1) make sure I'm in ketosis, which is my goal of being on a low carb diet, and 2) measure how much impact certain food has on my glucose/ketone levels.

I searched and tried a number of apps (free and freemiums) but none of them were satisfactory. Some require a lot of taps and key strokes. Others are designed for people with diabetes, which I am not, and lacking ability to track ketone levels. Most apps that have "keto-" in their names focus on diet, asking you to enter a whole bunch of information on what you eat. I don't care any of that. I have a ketone/glucose meter so I know if I am in ketosis or not by measuring the blood ketone level, without having to enter all the food data.

This app addresses my needs exactly. As the screenshots show, it has easy "dial" to enter values with time of entry, displays graphs to see the ups and downs. Very easy to use. Minimal taps required.

A few things to be desired in future updates... 1) Connectivity to iOS's Health App. 2) Option to enter food intake (meals & snacks) to track what triggers changes in ketone/glucose levels.

But overall, it's a perfect app. Highly recommended

PMC1720 ,

Simple and Easy!

I wanted an app that could clearly and quickly show my glucose and Ketone levels. It would be great if Apple health app allows you to enter ketone levels but so far it doesn’t. This is a simple, easy app to use and you shows me quickly exactly what I want to see. I wish there was an input for weight, as I would like to see how weight loss correlates with Ketone levels and blood glucose levels. Also, I entered my data twice for one day and can’t figure out how to delete one if the entries. No swipe left delete which would be a great added feature.

Developer Response ,


Thanks for the kind words about Ketologger.

Will see if Apple eventually adds ketones to the Health app. Hope they do sooner than later.

Since reading data is valuable and hard to reproduce, deleting readings was intentionally made a bit more difficult. To delete an item you have to head to the reading edit screen first and scroll down to the bottom where you'll find the delete button.

So to delete a reading first head to the history tab. Tap glucose or ketones at the top. Tap the right arrows beside the reading you want to delete. That will take you to the edit screen. Scroll down to the bottom and you'll find the delete button.

DMRrrrr ,


This app is just what I was looking for. It’s simply a place to log glucose and ketone results. You can see the results on a graph over time. You can also see the Glucose to Ketone ratio. Thanks for this great app. One enhancement I would suggest is to allow custom tags for the results. I typically test before and after meals. Sometimes also after exercise and after coffee. I would like to be able to compare results across the same tag. Even without this, the app is amazing.


Uncomplicated Solutions Inc.
19.2 MB
Health & Fitness
Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 12+ for the following:
Infrequent/Mild Medical/Treatment Information
© Uncomplicated Solutions Inc, Robert Ezman 2016/2017


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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