Comparison

Exist vs Logg

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

Head to head
About

Exist

This app helps you understand and optimize your behavior by combining manual tracking with automatic syncing from various services. Track health, productivity, and more, uncover relationships between habits, and run experiments on your behavior. Gain daily insights and weekly summaries to improve your life.

Highlights
  • Track any data point manually
  • Automatic syncing from health and productivity services
  • Daily insights and weekly summaries
  • Discover correlations between habits
  • Run behavioral experiments
  • Integrates with Apple Health and other services
Read full description

THIS APP REQUIRES A PAID ACCOUNT. Signing up for a new account will start a 30-day free trial. After your trial, you can choose to purchase a subscription using in-app purchase if you wish to continue using Exist. By combining manual tracking with automatic syncing from other services, we can help you understand and optimise your behaviour. Track whatever you like. Bring your activity from your phone or fitness tracker, add other services like your calendar for greater context on what you're up to, and manually enter anything else you care about. Track everything in one place See numbers about things like your health, activity, productivity, social media, and local weather all together. Data syncs automatically from connected services, so your step count and time asleep are right next to manual data points, like your energy level and how many coffees you drank. But it's not just about raw numbers. We deliver extra context like daily insights on how you're going, track long-term trends and averages, uncover relationships, and send it all in a weekly summary email too. Which habits go together? Correlations are the most powerful part of Exist. By finding relationships in your data, we can help you answer questions like: “What makes me happiest?” “What can I do to be more active?” “When am I most productive?” Track anything you can think of Some things in life can’t be counted by your watch or fitness tracker. With Exist, you can create your own data points to track anything else you want. Use it as a habit tracker, keep a record of medications and symptoms, or track subjective measures like energy and stress levels. Run experiments on your behaviour, and Exist will confirm or rule out your hunches.You can enter data as a quantity, time period, scale from 1–9, percentage, or time of day. Or just add a tag to a day as a quick way to say "this happened". We support the following Apple Health data from your iPhone: * Steps, active minutes, floors, cycling distance, stand hours, active energy burned * Sleep * Food and water (energy intake, fat, protein, etc.) * Workouts * Heartrate (max., resting, average, HRV) * Weight, body fat percentage, lean mass * Mindfulness sessions * Alcoholic drinks * Sexual activity * Menstrual flow Other data you can sync from your iPhone: * Location (Exist will use this to track weather data for you) * Events from your calendar Exist works best when connected to other services — add even more data by connecting any of these: * Fitbit * Oura * Garmin * Withings * Strava * RescueTime * Todoist * Toggl * Instapaper * GitHub * iCal Calendars (Google, iCloud) * Swarm by Foursquare * last.fm * Weather from Apple Weather Take Exist with you on your iOS device and see all your metrics, wherever you are. If you choose to continue using Exist after your free trial, you will need to purchase a monthly auto-renewing subscription. The current price for an Exist monthly subscription is 7.99 USD. Price will depend on your local currency. Payment will be charged to your iTunes Account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period. Your account will be charged for renewal within 24-hours prior to the end of the current period. You can manage your Subscription and turn off auto-renewal by going to your Account Settings after purchase. Privacy policy: https://exist.io/privacy/ Terms of use: https://exist.io/page/terms/ This app uses software licensed under the MIT License. Note: Continued use of GPS running in the background can dramatically decrease battery life.

About

Logg

This app allows you to securely log and organize all your life moments, activities, and thoughts. Track moods, habits, and memories with photos, voice notes, and location data. It also offers social features to connect with friends and discover new ones.

Highlights
  • Life logging and activity tracking
  • Mood tracking with photos and voice notes
  • Habit tracking and reminders
  • Secure private journaling
  • Calendar and timeline views
  • Social sharing and discovery
  • Integration with health and music apps
Features
Read full description

• Keep your all moments & activities tracked and safe in one place • Instantly search your diary & filter your moments and analyze your life • Take notes, start journaling and keep your journey organized • Remember memories securely and increase your daily motivation • Track your mood diary with pictures, voice notes and with your feelings • Use calendar journal to see your moments daily and create activity memories easily • Use audio journal and keep voice memories • Keep your books, movies, series and music that you like with your thoughts • Track habits easily and be more organized • Discover organized people who keep activity journal or photo diary • Create new mood categories which reflects your mood and track mood • Easy life logging with Logg Logg encourages you to grow journaling habits and improve your life, health and motivation on a daily basis. **Apple Store Featured App of the Week - August 2018** **Product Hunt Featured App of the Day – July 2018** GAIN LIFETIME BENEFITS • Making Logg a daily app improves your life • Increases motivation, self-awareness, success, and health • Helps to organize and become tidier • Never forget a memory, relive them all YOUR PRIVATE AND SECURE JOURNAL • You can keep your personal moments private • All your information is secure with your account KEEP EVERY MOMENT • Save your all memories & activities and create a timeline • Write diary records in the past by selecting its date and time • Quickly create a log, like drinking water, etc., without any notes • See your entries in a time flow or in a calendar view BE SOCIAL WITH FRIENDS AND DISCOVER OTHERS • Logg is a social journal that you can follow your friends, like and comment on their logs • Discover new friends with common interests SEARCH AND FILTER MOMENTS INSTANTLY • Search and find notes instantly • Filter by activity and only see specific activities ADD PHOTOS, VOICE RECORDS AND, LOCATIONS • Keep notes, photos, voice record and location on your entries • Add voice notes to your entries • Add up to 10 photos to your note IMPROVE WITH REMINDERS • Stop forgetting your duties, easily create a reminder and be more organized • Keep your habits continue • Create reminders for any kind of activities • Quickly create logs from reminder notifications CALENDAR JOURNAL • Easily view your moments in Calendar View • Check your diary daily, weekly or yearly in Statistics Page 500 CATEGORIES AND MORE • Thanks to more than 500 predefined activities you can record whole activities • Create and use new categories as you want CONNECT SWARM, STRAVA, SPOTIFY, APPLE HEALTH, and MORE • Connect Swarm account and keep locations tracked automatically • Connect Spotify account and share your favorite​ songs with friends • Connect Apple Health to easily record your weight, height changes and walking & running activities • Connect Strava account to automatically save your activities LANGUAGE SUPPORT: • English, Chinese, German, Russian, French, Italian, Spanish and Turkish PREMIUM SUBSCRIPTION INCLUDES: • DESKTOP APP. Use Logg at your computer • MULTIPLE PHOTOS. Share up to 10 photos with a log • REMINDERS. You can create reminders for creating a habit • STATISTICS. See statistics about your logs with detailed tables • You can add 15 minutes voice notes to your journal entries • Full features of Calendar View Logg Premium is an auto-renewing subscription and available for monthly or yearly periods. $2.99/monthly, $29.99/yearly. Prices may vary by location. All subscriptions come with 7 days trials. Subscriptions will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. You can cancel your subscription anytime by managing your subscriptions in Account Settings after purchase. Terms of Use & Privacy Policy: https://www.loggyourlife.com/terms-and-privacy/en Send your feedback to feedback@loggyourlife.com

Screenshots

Exist4 screens
Logg4 screens

Verdict

The call

The clearest difference is monetization model: Logg at free with in-app purchases against Exist's subscription. Logg also leads on iOS requirement (13.0 vs 18.0). Exist's advantage is ads (none vs shown). On price, rating, review sentiment and ratings volume 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

Both are free to download. Exist sells 1 in-app purchase, starting at $8.49 per month and Logg sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.1 for Exist against 4.1 for Logg. Both are backed by a comparable volume of ratings — 46 and 55 respectively. Written reviews are what separate them: 68% of Exist's written reviews are positive against 64% of Logg's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on June 9, 2026 and July 5, 2026 respectively.

Scorecard3 real differences · 7 level
Exist versus Logg: the parameters behind the verdict, then further details
ParameterExistLogg
PriceFreeFree
Rating4.1 (46 ratings)4.1 (55 ratings) — better
Positive reviews68.4% of reviews — better64.1% of reviews
Number of ratings4655 — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.013.0 — better
Further details — not scored
Size14 MB61 MB
Age rating4+4+
DeveloperHello Code Pty LtdAlmondspring Ltd.

Customer experience

Exist

All ratings46 ratings
Positive76.1%
Neutral8.7%
Negative15.2%
Written reviews38 reviews
Positive68.4%
Neutral5.3%
Negative26.3%

Logg

All ratings55 ratings
Positive80.0%
Neutral7.3%
Negative12.7%
Written reviews92 reviews
Positive64.1%
Neutral12.0%
Negative23.9%

In-app purchases

1 purchases

Exist

Subscriptions1
  • Exist monthly subscription$8.491 Month
2 purchases

Logg

Subscriptions2
  • Premium Monthly Subscription$2.991 Month
  • Premium Yearly Subscription7 Days trial$29.991 Year

Questions

Is Exist free?
Exist is free to download, with in-app purchases available.
Is Logg free?
Logg is free to download, with in-app purchases available.
Which has better reviews, Exist or Logg?
Logg is rated higher. Exist averages 4.1 out of 5 from 46 ratings, while Logg averages 4.1 from 55 ratings.
Do Exist or Logg have ads?
Logg shows ads; Exist does not.
Which is updated more often, Exist or Logg?
Exist ships an update every 3 weeks, and Logg every 3 weeks. Most recently, Exist was updated on June 9, 2026 and Logg on July 5, 2026.

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