Comparison

Keto Logger vs Fasting Tracker

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

Head to head
About

Keto Logger

Easily log and visualize your ketone and glucose readings. Supports multiple units, CSV import from popular meters, and data export. Track your progress with interactive graphs and history views.

Highlights
  • Log ketone and glucose readings
  • Support for mg/dL and mmol/L units
  • CSV import from KetoMojo
  • Line graph visualization
  • History view with GKI calculation
  • CSV data export
  • Database backup and restore
Features
Read full description

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.   You can import the CSV files from the KetoMojo meter app*. 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. Easily export all your readings in CSV format (Two formats to chose from). A "backup manager" maintains the last few versions of the database. These can be restored or exported. Share your database between devices. If there's a feature that's missing please let us know at: missing-feature@ketologger.com GKI graphing is in the works (not sure when it will be done) but was originally skipped because I figured that graphing ketones vs glucose creates a kind of visual GKI. See my thought on GKI here: https://ketologger.com/blog/2018-08-16-ketologger-what-is-the-gki-and-why-is-it-green Keto Logger was inspired when a family member was following a ketogenic diet for health reasons. For a programmer logging and graphing ketones in a spreadsheet is not too challenging. For most other people probably a huge challenge. Keto Logger was created so that anyone with an iOS device can log and graph their ketone and glucose readings. (Also I personally have been following a low carb/ ketogenic diet since about 2003.) (* CVS import is tricky and will break if the exported format changes. If import fails then please send a mail to support@ketologger.com so we can figure out what's wrong and fix it.)

About

Fasting Tracker

This app helps you track intermittent fasting with a simple, ad-free timer. It offers core features for free, with optional Pro upgrades for advanced tracking, widgets, and Apple Watch integration. Your data is kept private with no account required.

Highlights
  • Intermittent fasting timer
  • Water tracking with reminders
  • Weight tracking
  • No account required
  • Ad-free experience
  • Advanced protocols (Pro)
  • Home screen widgets (Pro)
Features
Read full description

Start your intermittent fasting journey with Easy Fast — the simple, ad-free fasting app and habit tracker designed for weight loss and lasting results. Trusted by 2.4M+ fasters and rated 4.9 stars on the App Store. Hi, I'm Sam. I'm a solo developer and a long-time faster. I created a fasting tracker that is simple, powerful, and private. No invasive ads, no required accounts, and no data mining. Just a tool to help you reach your weight loss and health goals. CORE FEATURES (Free forever) Easy Fast is one of the most generous free fasting apps on the store: • Fasting Timer: Track popular daily fasts like 16:8 and 18:6. • Flexi Plan: Open-ended fasting with no time cap. You decide when to stop. • Fasting Stages: Track your body status from Ketosis to Autophagy. • Water Tracker: Log your hydration with smart reminders. • Weight Tracking: Monitor your weight loss progress over time. • Edit History: Forgot to hit stop? Easily adjust start and end times. • Zero Ads & No Accounts: Just download and focus on your health, not closing pop-ups. GO PRO (Unlock advanced tools & support a solo dev) • Advanced Plans: Unlock OMAD (One Meal A Day), 20:4, week-by-week programs, and extended fasts — matched to your weight loss goal. • Expert Stage Insights: Practical answers at every stage — how long hunger waves last, which drinks break a fast, and whether one bite ruins it. • Widgets, Live Activities & Apple Watch: Track your fast on the Home Screen, Lock Screen, Dynamic Island, and right from your wrist. • Complete Tracking: Log body measurements, electrolytes, ketones, and glucose. • Cloud Sync & Backup: Keep your fasting history secure across all your devices. WHY CHOOSE EASY FAST? • Battery-Friendly: A true black Dark Mode that saves battery. • Privacy-First: Your data is never sold. Cloud Sync is entirely optional. • Community Trusted: Join millions of fasters using the most respectful app on the store. Whether you are a beginner starting 16:8 to lose weight or a veteran looking for a clean, ad-free timer, Easy Fast is the tool for you. Download the ultimate intermittent fasting tracker today. Easy Fast is an intermittent fasting tool and should not replace professional medical advice. Terms of Use: https://easyfastapp.com/terms Privacy Policy: https://easyfastapp.com/privacy

Screenshots

Keto Logger4 screens
Fasting Tracker4 screens

Verdict

The call

The clearest difference is price: Fasting Tracker at Free against Keto Logger's $2.99. Fasting Tracker also leads on update cadence (every 3 days vs every 2 months) and ratings volume (9.1K vs 298). Keto Logger's advantage is in-app purchases (none vs 18) and iOS requirement (9.3 vs 15). On rating, review sentiment, ads and device support 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

Fasting Tracker is free to download; Keto Logger costs $2.99 up front. Fasting Tracker sells 17 in-app purchases, starting at $0.99 per month. Keto Logger asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Keto Logger against 5.0 for Fasting Tracker. That said, the two scores are not equally well evidenced: Fasting Tracker has 9.1K ratings behind it against 298, so its average is the more settled of the two. Written reviews are what separate them: 91% of Keto Logger's written reviews are positive against 93% of Fasting Tracker's.

UpkeepUpdate frequency

Keto Logger ships an update every 2 months, Fasting Tracker every 3 days. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.

Scorecard6 real differences · 4 level
Keto Logger versus Fasting Tracker: the parameters behind the verdict, then further details
ParameterKeto LoggerFasting Tracker
Price$2.99Free — better
Rating4.8 (298 ratings)5.0 (9.1K ratings) — better
Positive reviews91.2% of reviews93.5% of reviews — better
Number of ratings2989.1K — better
Update frequencyEvery 2 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS9.3 — better15
Further details — not scored
Size20 MB75 MB
Age rating12+4+
DeveloperUncomplicated Solutions Inc.Samtark Pty Ltd

Customer experience

Keto Logger

All ratings298 ratings
Positive95.6%
Neutral2.7%
Negative1.7%
Written reviews34 reviews
Positive91.2%
Neutral5.9%
Negative2.9%

Fasting Tracker

All ratings9,068 ratings
Positive99.2%
Neutral0.2%
Negative0.5%
Written reviews644 reviews
Positive93.5%
Neutral1.4%
Negative5.1%

User reviews

Keto Logger

From 298 App Store ratings

What we love

  • 👍 Simple and easy to use
  • 📈 Tracks glucose and ketones
  • 📊 Automatic graphs (Day/Week/Month)
  • 📤 Data export functionality
  • 💡 Calculates Glucose-Ketone Index (GKI)

Room to improve

  • ❌ Cannot edit entries
  • 🔄 No cloud sync / device sync
  • 🍎 No Apple Health integration
  • 🧹 Messy and clunky UI (mentioned by one user)
  • 🚫 No swipe left delete

Fasting Tracker

From 9.1K App Store ratings

What we love

  • 🚀 Easy to use
  • 👍 Simple and straightforward interface
  • 🚀 Flexible fasting options
  • 🚀 Detailed fasting progress tracking
  • 👍 Customizable display

Room to improve

  • 🐛 Occasional app freezes or crashes
  • 🔒 No user account/data sync across devices
  • 🐛 Issues with lock screen/home screen widgets

Bugs and requests

Keto Logger

Reported bugs

4 issues
  • Cannot edit entries once saved
  • Data corruption (resolved by developer)
  • Import issues (resolved by developer)
  • Does not sync across devices

Requested features

10 requests
  • Ability to add notes to readings (e.g., after fast, after meal)
  • Track weight
  • Sync with Apple Health
  • Sync with KetoMojo app
  • Add readings for hematocrit and hemoglobin
Show 5 more
  • Allow custom tags for results
  • Comparative analysis or normative charts
  • Option to enter food intake (meals & snacks)
  • GKI plot showing benefit zones
  • Dark mode option

Fasting Tracker

Reported bugs

2 issues
  • Inability to save measurements
  • Inconsistent widget updates

Requested features

4 requests
  • Integration with Apple Health
  • Community/social features
  • Ability to plan/schedule future fasts
  • Ketosis/fat-burning tracking

In-app purchases

None

Keto Logger

No in-app purchases

17 purchases

Fasting Tracker

Subscriptions10
  • Seedling Sponsor$0.991 Month
  • Seedling Sponsor$1.991 Month
  • Seedling Sponsor$2.991 Month
Show 7 more
  • Seedling Sponsor$3.991 Month
  • Flourish Sponsor$4.991 Month
  • Easy Fast Pro$9.991 Month
  • Monthly Tip$9.991 Month
  • Monthly Tip$14.991 Month
  • Monthly Tip$19.991 Month
  • Easy Fast Pro7 Days trial$49.991 Year
One-time7
  • Tip$1.99
  • Tip$2.99
  • Tip$3.99
Show 4 more
  • Tip$4.99
  • Tip$9.99
  • Tip$19.99
  • Tip$29.99

Questions

Is Keto Logger free?
Keto Logger costs $2.99, with no in-app purchases.
Is Fasting Tracker free?
Fasting Tracker is free to download, with in-app purchases available.
Which has better reviews, Keto Logger or Fasting Tracker?
Fasting Tracker is rated higher. Keto Logger averages 4.8 out of 5 from 298 ratings, while Fasting Tracker averages 5.0 from 9.1K ratings.
Do Keto Logger or Fasting Tracker have ads?
Neither Keto Logger nor Fasting Tracker shows ads.
Which is updated more often, Keto Logger or Fasting Tracker?
Keto Logger ships an update every 2 months, and Fasting Tracker every 3 days. Most recently, Keto Logger was updated on October 23, 2026 and Fasting Tracker on October 27, 2026.

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