Software Alternatives, Accelerators & Startups

Exist VS LogZero.app

Compare Exist VS LogZero.app and see what are their differences

Exist logo Exist

Track everything in one place, understand your life.

LogZero.app logo LogZero.app

A private, all-in-one life tracker for iPhone that keeps everything on your phone. Track Everything. Share Nothing.
  • Exist Landing page
    Landing page //
    2022-07-19
  • LogZero.app Dashboard Module
    Dashboard Module //
    2026-06-15
  • LogZero.app Food Tracker Module
    Food Tracker Module //
    2026-06-15
  • LogZero.app Exercise Tracker Module
    Exercise Tracker Module //
    2026-06-15
  • LogZero.app Mood Tracker Module
    Mood Tracker Module //
    2026-06-15
  • LogZero.app TODO Tracker Module
    TODO Tracker Module //
    2026-06-15
  • LogZero.app Medication Tracker Module
    Medication Tracker Module //
    2026-06-15
  • LogZero.app Correlation Module
    Correlation Module //
    2026-06-15
  • LogZero.app Meditation Tracker Module
    Meditation Tracker Module //
    2026-06-15
  • LogZero.app Weight Tracker Module
    Weight Tracker Module //
    2026-06-15

LogZero is the all-in-one private life tracker for mood, habits, food, weight, exercise, meditation, medication, todos and more. Everything stays on your iPhone. No ads. No cloud. No accounts. No analytics. LogZero has security and privacy integrated into it's DNA. LogZero is built by Andrew Hoffman, LLC โ€” owned by Andrew Hoffman: a cybersecurity architect, author and educator.

ONE OFFLINE APP FOR YOUR ENTIRE DAY

Mood module โ€” multi-step daily entries with emotions, activities, gratitude notes, and free-form text. The depth of a private diary, the speed of a tap. Food module โ€” daily recording of macros against your own targets. Can be configured to track additional vitamins, nutrients and supplements. Scan labels or log manually. Weight module โ€” log weight over time, set goals, configure charts for easier data review. Exercise module โ€” log workout minutes rapidly and build data to see how your workouts impact your mood and weight. Todo module โ€” prioritized, filterable cross-day tasks with tags, completion trends, and a planning view. Meditation module โ€” daily meditation tracking tied to correlations module to show it's impact on your mood. Medication module โ€” schedule medication and supplement protocols, adherence tracking, prescription refill reminders and more. Correlation module โ€” analyze data from all the other modules to draw insights into what is impacting your weight, mood and behavior. Correlation module โ€” the most important insights from the other modules, charted, configurable and readable at at glance.

100% PRIVATE. 100% ON-DEVICE.

LogZero has no servers. None. Every entry โ€” every mood, meal, weight, symptom, medication dose, and meditation minute lives on your device and nowhere else. We can't see your data by design, and this sets our app apart from almost every competitor.

Exist

Website
exist.io
Pricing URL
-
$ Details
-
Platforms
-
Release Date
-

LogZero.app

$ Details
freemium
Platforms
iOS iPhone
Release Date
2026 June
Startup details
Country
United States
State
Washington
City
Seattle
Founder(s)
Andrew Hoffman
Employees
1 - 9

Exist features and specs

  • Comprehensive Data Integration
    Exist integrates data from various services such as fitness trackers, social media, sleep monitors, and more, allowing for a wide range of data collection and analysis.
  • Personal Insights
    It provides personalized insights and correlations based on the data collected, helping users to better understand their habits and improve their lifestyle.
  • Custom Tracking
    Users can create custom tags to track specific activities or behaviors that are important to them, offering a high degree of personalization.
  • API Access
    Exist offers an API, enabling users to create custom integrations and extend the platform's functionality.
  • Mobile App Availability
    Exist is available as a mobile app, making it easy for users to input and check their data on the go.

Possible disadvantages of Exist

  • Subscription Cost
    Exist requires a paid subscription after the initial trial period, which may be a barrier for some users.
  • Privacy Concerns
    Collecting and integrating a wide range of personal data can raise privacy concerns, especially if the service is ever compromised.
  • Data Overload
    The sheer amount of data available can be overwhelming for some users, making it challenging to identify the most relevant insights.
  • Learning Curve
    New users may face a learning curve as they try to navigate the platform and make the best use of its features.
  • Limited Free Features
    The free version offers limited functionality, which may not be sufficient for users looking to fully explore the platform before committing to a subscription.

LogZero.app features and specs

  • Dashboard
    Quick and easy insights into other modules
  • Food Tracker
    Track macros, nutrients, vitamins and more with trend charts and goals
  • Meditation Tracker
    Track meditation, listen to on-device generated binaural beats
  • Exercise Tracker
    Update and log workouts, track calories burned, sync with Apple Health
  • TODO Tracker
    Create and update TODO items, sort and filter and tag. Optimized for productivity.
  • Medication Tracker
    Add and update medications. Set medication reminders. Set prescription renewal reminders. See adherence charts.
  • Mood Tracker
    Log moods, correlate moods with activities and environmental factors. See trends over time.
  • Weight Tracker
    Log weights, syncs with Apple Health (and Apple Health integrated scales)
  • Correlation
    View correlations between all other modules to draw insights. What exercises lead to weight loss? What activities impact your mood?

Exist videos

Exist - Board Game Review

More videos:

  • Review - Exist Review
  • Review - Daiwa Exist Spinning Reel [Review & Unboxing]

LogZero.app videos

No LogZero.app videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to Exist and LogZero.app)
Productivity
91 91%
9% 9
Weight Loss
0 0%
100% 100
Health And Fitness
100 100%
0% 0
Habit Building
100 100%
0% 0

User comments

Share your experience with using Exist and LogZero.app. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, Exist seems to be more popular. It has been mentiond 43 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Exist mentions (43)

  • Apple courier may have stolen 2 MacBooks, () Apple is not going to help
    As someone who has been on and off the Degoogle train (I ran full LineageOS without Google Play at one point) and is now pretty deep in iOS territory, I'd say the main thing for me has been email. I've used https://www.fastmail.com for a great deal of years now, which is also home to my calendar as well so there's nothing much of value tied to my Google account. YouTube subscriptions would be annoying to lose but... - Source: Hacker News / over 1 year ago
  • Ask HN: Tell us about your project that's not done yet but you want feedback on
    You may want to look into https://exist.io/. It's a very indie developer duo out of Australia (IIRC). And also IIRC they were looking for a buyer on Twitter some time ago. - Source: Hacker News / almost 3 years ago
  • Ask HN: Anyone using or working on a life dashboard?
    I have used this previously when tracking health metrics and I couldn't much else that had integrations. https://exist.io/. - Source: Hacker News / almost 3 years ago
  • Tracking Apps
    Hey guys, thinking of tracking wellness metrics such as sleep water intake etc to a dashboard/app. The main tools I have found are Exist.io, Gyrosco.pe, and conjure.so. For those of you who have tried them I would love to know what are the pros and cons with each one? Or if you have any better ones any help is greatly appreciated! Source: almost 3 years ago
  • Best apps to use
    Hey guys, thinking of transporting my quantified self journey to a dashboard/app. The main tools I have found are Exist.io, Gyrosco.pe, and conjure.so. For those of you who have tried them I would love to know what are the pros and cons with each one? Source: almost 3 years ago
View more

LogZero.app mentions (0)

We have not tracked any mentions of LogZero.app yet. Tracking of LogZero.app recommendations started around Jun 2026.

What are some alternatives?

When comparing Exist and LogZero.app, you can also consider the following products

Gyroscope - Gyroscope is a personalized dashboard for tracking your life.

Gym Life - The best gym tracker available on iPhone, Android and Apple Watch.

Daylio - Daylio enables you to keep a private diary without having to type a single line.

Health Tracker - Habit Tracker: The easiest way track your overall wellness

Bearable App - User-friendly health tracking

JustLog.app - The minimalist workout tracker that gets out of your way