Comparison

Prime vs Keto Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Prime

This app offers a tailored intermittent fasting experience for women, featuring a fasting tracker, weight monitoring, and personalized guidance. It helps users achieve fitness goals, manage weight, and understand the health benefits of fasting with a focus on women's specific needs.

Highlights
  • Fasting tracker (16:8 protocol)
  • Weight tracker
  • Water tracker with reminders
  • Personalized daily recommendations
  • Body status tracking
  • Fasting/eating interval stats
  • Community club
Features
Read full description

Prime: Intermittent Fasting App is the first fasting app tailored exclusively to women. Designed with an extremely effective fasting protocol, a simple weight tracker, fasting stats, and all the answers to your burning questions. Free Prime: Intermittent Fasting App will help you reach your fitness goals, take control of your weight (and life!), regulate your hormones, and enjoy all the health benefits that intermittent fasting offers in just a few simple clicks. Now’s the time to get the healthy body of your dreams. What are you waiting for? Install the app and start seeing results immediately! FEATURES: ** Fasting tracker ** The app focuses on the 16:8 fasting protocol — the most suitable protocol for women, but also provides other fasting protocols. Fasting presets work perfectly with any diet or food restrictions: keto, paleo, gluten-free, etc. Whether you are just starting out or already familiar with intermittent fasting, the Prime: Intermittent Fasting App will guide you through the process. ** Weight tracker ** Monitor your progress with the app’s weight tracker as it provides valuable insights. Nothing is more satisfying than seeing that weight curve move in the right direction? The app will help you achieve the weight goals that are right for you. ** Water tracker ** Don't forget to drink water! Use our water tracker with a reminder function. We automatically calculate the right amount for you. ** Personal daily recommendations ** Stay healthy and motivated with our daily recommendations! ** Body status ** We identify and track key stages in your fasting journey. ** Stats ** Track your fasting/eating intervals with a simple fasting plan. The beauty of intermittent fasting lies in its simplicity and efficiency. Forget about those rollercoaster diets and cleanses, and let the Prime Fasting App guide you to where you need to get. ** Insights ** Prime: Intermittent Fasting has been customized for women, based on their biology and needs. Through insights, you can access the knowledge of intermittent fasting for women and get your questions answered. For example, did you know that with intermittent fasting you can also build muscle? We explain how it works in our insights. ** The Club ** Join the community club and share your success with others. We are all here to change. Let’s empower each other! ** Personal coach ** Apply for the course with a personal coach! ** Health App Integration ** Prime: Intermittent Fasting App integrates the following data from the Health app (HealthKit) to keep track of your body status: body mass index, exercise minutes, height, weight, mindful minutes, date of birth, steps, and water. ** Subscription Information ** The Prime: Intermittent Fasting App is free to download and offers paid premium features. The Premium gives you access to personalized daily recommendations, insights, recipes, chat support, club chat, and statistics. Your subscription renews automatically unless canceled at least 24 hours prior to the end of the current period. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Intermittent fasting has been the talk of the health world for good reason. The positive outcomes associated with the fasting lifestyle include self-healing mechanisms, detoxing, anti-aging, and other worthwhile benefits. Do you truly need to take a deep dive into all the research on intermittent fasting? Not really. All you need to do is download the Prime: Intermittent Fasting App. The app will happily guide you through the steps you need to manage your health and well-being. Note: This app is developed for informational purposes only. You must always consult your physician or doctor before starting any diet program. Terms & Conditions: https://primehealth.one/tc Privacy policy: https://primehealth.one/pp

About

Keto Tracker

Features
Read full description

Keto Tracker helps you track your keto journey. You can log your Glucose and Ketones measurements from your measuring devices and Keto Tracker will compute whether or not you are in Ketosis / Autophagy. It can also compute an estimates A1C value for your last 3 months of your Keto Track-ing. Keto Tracker adds the ability for you to add notes of the food you ate a night before your morning measurements. It then displays that information in a color coded item list which helps you determine your Ketosis state.

Screenshots

Prime4 screens
Keto Tracker4 screens

Verdict

The call

The clearest difference is price: Prime at Free against Keto Tracker's $5.99. Keto Tracker's advantage is in-app purchases (none vs 10) and update cadence (every 5 days vs every 3 weeks). On ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Prime is free to download; Keto Tracker costs $5.99 up front. Prime sells 9 in-app purchases, starting at $9.99 per month. Keto Tracker asks for nothing beyond the download.

UpkeepUpdate frequency

Prime ships an update every 3 weeks, Keto Tracker every 5 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard3 real differences · 7 level
Prime versus Keto Tracker: the parameters behind the verdict, then further details
ParameterPrimeKeto Tracker
PriceFree — better$5.99
Rating4.6 (4.6K ratings) — better—
Positive reviews42.9% of reviews—
Number of ratings4.6K — better—
Update frequencyEvery 3 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone
Requires iOS17.617.0 — better
Further details — not scored
Size323 MB1 MB
Age rating17+4+
DeveloperSergei Sharoveli VAKNIN

Bugs and requests

Prime

Reported bugs

4 issues
  • Lost user progress and data
  • Subscription issues and lack of refunds
  • Unresponsive start/stop fasting buttons
  • Incorrect weight and fasting time tracking

Requested features

5 requests
  • Sync with fitness trackers
  • More varied meal plans and recipes
  • Ability to manually adjust fasting times
  • Customizable notifications and reminders
  • Integration with calorie tracking

Keto Tracker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

Prime

Subscriptions9
  • SPECIAL DISCOUNT OFFER$9.991 Month
  • Premium Subscription$14.991 Month
  • Premium Subscription$19.991 Month
Show 6 more
  • Premium Subscription2 variants$29.993 Months
  • Premium Subscription$39.991 Year
  • Premium Subscriptions$39.993 Months
  • Premium Subscription$49.991 Year
  • Premium Subscription$59.991 Year
  • Premium Subscription$69.991 Year
None

Keto Tracker

No in-app purchases

Questions

Is Prime free?
Prime is free to download, with in-app purchases available.
Is Keto Tracker free?
Keto Tracker costs $5.99, with no in-app purchases.
Do Prime or Keto Tracker have ads?
Neither Prime nor Keto Tracker shows ads.
Which is updated more often, Prime or Keto Tracker?
Prime ships an update every 3 weeks, and Keto Tracker every 5 days. Most recently, Prime was updated on November 3, 2026 and Keto Tracker on November 4, 2026.

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