Comparison

Gyroscope vs Diarly

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

Head to head
About

Gyroscope

This app offers a comprehensive view of your personal health data, integrating nutrition, exercise, and sleep. Utilize its AI coach for personalized insights and track your progress with hundreds of available metrics and device integrations. Your data is private and never sold, with a focus on improving your overall well-being.

Highlights
  • Health Camera for food and drink tracking
  • AI-powered health insights and coaching
  • Syncs with thousands of devices and wearables
  • Hundreds of health and wellness trackers
  • Private data storage with no ads
  • Personalized reports and goal setting
Features
Read full description

Gyroscope is not just an app, but a new operating system for the human body. You’ll be able to see everything about your biology, and update your internal systems for our modern world. Better nutrition, better exercise, better living with AI. C A M E R A With the world’s first Health Camera, tracking your life is as simple as taking a photo. Use the app to take a photo of everything you eat (and drink) to get realtime and accurate data. Gyroscope is designed to be the most accurate and convenient way to track your eating — combining photos, text labels, scale data, nutrition labels and your personalizations for easy and intuitive tracking that learns with you. U P G R A D E Gyroscope is designed for maximum privacy and quality. There are no ads, and your data is never sold. Just one simple membership powers the service for everyone. Everyone can start with the 4 essential trackers (Places, Mood, Sleep and Food), or join premium to unlock all trackers and coaching. Gyroscope One adds hundreds of trackers and integrations to see everything in one place: nutrients, fasting, meditation, workouts, travel, sleep, glucose, productivity. You can automatically sync with thousands of devices like Apple Watch, wearables, smart mattresses, scales, glucose monitors, and more. And now you’re not alone. Your AI coach in the app helps you make sense of it all with insights, notifications, and custom reports tailored to you and your goals. R E V I E W S “Gyroscope is the only product that makes tracking my life easy. With a glance I can tell what I'm excelling at, and what I need to work on. I don't go a day without checking the app.” – Brandon “Tracking my life in gyroscope helped me lose 75lbs!” “The insights I get using Gyroscope are priceless. Every day I am able to make more informed decisions that make me a happier and healthier person.” – Chris “Love the ability to track my location without sacrificing my privacy to Facebook and Google.” – Sawyer “I think I've been using Gyroscope for a while now and it's by far one of the subscriptions I have that brings me more joy.” – Lucas M E M B E R S H I P Create an account to start with the basics, including free quizzes and consultations, 4 complimentary trackers, and 30 days of storage. Upgrade to Gyroscope One membership for hundreds of more trackers, AI coach, unlimited storage, fat loss protocol, integrations, and more. Y O U R A C C O U N T Gyroscope requires an account to sync and view your data. You can access dashboards in the app and website, and ensures your data is never lost, even if you reinstall the app or get a new iPhone. Your data will NEVER be sold, and is ONLY used for your benefit. We also show no ads. We only make money through the premium subscriptions, so your upgrade helps to power the system. Your data is completely private by default, but you have the option to add friends or make your profile public if you want to share. You can also delete your entire account at gyrosco.pe/delete B I L L I N G Gyroscope One is an auto-renewing subscription, billed with a simple membership that costs just about $1 a day. Subscribe and pay through your iTunes account. Monthly subscriptions automatically renew monthly through your iTunes account. Auto-renew may be turned off in your iTunes Account Settings after purchase. Cancellation of the current active subscription period is not allowed. When you cancel the auto-renewal, access to the app features will expire at the end of the current payment period, and remaining trial is forfeit. Subscription automatically renews unless auto-renew is turned off at least 24-hours before end of current period. Account renewal will be charged within 24-hours prior to end of current period. Full Terms of Service & Pricing: https://gyrosco.pe/terms/ How we protect your privacy: https://gyrosco.pe/privacy/

About

Diarly

A private journaling app that allows users to record daily thoughts, moods, and memories. It offers features like mood tracking, journal prompts, and secure password protection. The app helps users build a personal timeline of their life, one entry at a time.

Highlights
  • Private journaling and diary
  • Mood tracking and insights
  • Journal prompts and templates
  • Password protection and encryption
  • iCloud sync across Apple devices
  • Photo, video, and audio attachments
Features
Read full description

You don't need a free hour or the right words to keep a journal. Start with five minutes and one honest sentence. Write with your first coffee, on the train home, or in the quiet before sleep. A journal grows the same way a life does: one ordinary day at a time. Diarly is a private journal, diary, and notes app for Mac, iPhone, iPad, and Apple Watch. Each entry becomes part of a personal timeline you can search, revisit, and keep. DAILY JOURNAL, DIARY, AND PRIVATE NOTES Use Diarly as a daily journal or diary, a gratitude journal, a travel journal, a mood diary, a photo journal, a voice journal, or private notes with a password. Create separate journals, or keep dated entries and undated notes together. Diarly Free includes one journal with unlimited entries and media. Add photos, videos, drawings, audio, tags, locations, weather, and calendar details. Write in Markdown and organize notes, lists, ideas, plans, and quotes. MOOD TRACKER AND JOURNAL INSIGHTS The built-in mood tracker makes it easy to log how you feel. You can also save your mood and feelings to Apple Health. Mood Calendar and Insights show how your logged moods change over time, gently highlighting lighter or heavier stretches without judging what they mean. Diarly can be used as a private mental health journal for writing about thoughts, feelings, stress, or anxiety. It is a journaling and reflection tool, not a medical or mental health tracker. JOURNAL PROMPTS, TEMPLATES, AND DAILY WRITING Journal prompts and reusable templates make daily journaling easier to begin. Build a journal template with a prompt, weather, location, calendar events, today's photos, or Apple Health details such as sleep, steps, and workouts. These optional details can support a sleep journal, fitness journal, or health journal without analyzing your health. The Today view gives you a quick glimpse of your journal through a customizable feed of recent entries, mood check-ins, writing suggestions, quotes, tags, calendar events, and On This Day memories. Reminders, writing goals, and journal streaks help you return without making the diary another chore. FIND AND REVISIT YOUR MEMORIES Search finds entries and notes by words, tags, moods, and dates. Timeline and Calendar organize daily entries by date. Map shows travel journal entries saved with a location. Gallery gathers journal photos, videos, and drawings. On This Day recalls earlier years. PRIVATE DIARY WITH PASSWORD AND ICLOUD SYNC Your journal stays on your device. Premium syncs your diary through your personal iCloud Drive. There is no separate account to create, and we never store your journal on our servers. Lock the app with a password, Face ID, or Touch ID for free. Premium adds encryption for the text of your entries and private notes. The app is built exclusively for Apple devices. One Premium subscription covers iPhone, iPad, Mac, and Apple Watch and adds iCloud sync, multiple journals, encryption, themes, export formats, and the AI Assistant. IMPORT, EXPORT, AND KEEP YOUR JOURNAL Import journals from Apple Journal, Day One, Journey, Stoic, Evernote, Markdown, and CSV. Export your journal to Markdown, PDF, Rich Text, and HTML so your writing remains readable outside the app. AI+ is a separate optional subscription. It lets you transcribe audio journal entries into text and use OCR to extract text from photos. Your journal remains yours, whether you write a daily diary, track moods, collect memories, or keep private notes. Help Guides → https://diarly.app/help Privacy Policy → https://diarly.app/privacy Terms of Use (EULA) → https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Gyroscope4 screens
Diarly4 screens

Verdict

The call

The clearest difference is ads: Diarly at none against Gyroscope's shown. Diarly also leads on review sentiment (85% vs 65%) and ratings volume (1.5K vs 52). Gyroscope's advantage is iOS requirement (16.6 vs 18.0). On price, rating, update cadence and in-app purchases 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. Gyroscope sells 8 in-app purchases, starting at $9.00 per 7 days and Diarly sells 5 in-app purchases, starting at $1.99 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 — 4.8 for Gyroscope against 4.7 for Diarly. That said, the two scores are not equally well evidenced: Diarly has 1.5K ratings behind it against 52, so its average is the more settled of the two. Written reviews are what separate them: 65% of Gyroscope's written reviews are positive against 85% of Diarly's.

UpkeepUpdate frequency

Gyroscope ships an update every 9 days, Diarly fortnightly. Both last shipped on November 6, 2026.

Scorecard5 real differences · 5 level
Gyroscope versus Diarly: the parameters behind the verdict, then further details
ParameterGyroscopeDiarly
PriceFreeFree
Rating4.8 (52 ratings) — better4.7 (1.5K ratings)
Positive reviews65.2% of reviews84.9% of reviews — better
Number of ratings521.5K — better
Update frequencyEvery 9 days — betterFortnightly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, Apple WatchiPhone, iPad, Mac, Apple Watch — better
Requires iOS16.6 — better18.0
Further details — not scored
Size153 MB281 MB
Age rating17+4+
DeveloperGyroscope InnovationsKrzysztof Nowak

Customer experience

Gyroscope

All ratings50 ratings
Positive94.0%
Neutral6.0%
Negative0.0%
Written reviews465 reviews
Positive65.2%
Neutral8.8%
Negative26.0%

Diarly

All ratings1,475 ratings
Positive94.0%
Neutral2.7%
Negative3.3%
Written reviews921 reviews
Positive84.9%
Neutral7.1%
Negative8.0%

User reviews

Gyroscope

From 52 App Store ratings

What we love

  • 🚀 Comprehensive data aggregation
  • 👍 Beautiful and intuitive interface
  • 🔍 Detailed health and wellness insights
  • 💡 Innovative AI coaching features
  • 🤖 Seamless integration with wearables and apps

Room to improve

  • 💰 Expensive subscription model
  • 🐛 Unreliable location and sleep tracking
  • 🔋 High battery consumption
  • 🤔 Confusing navigation and UI changes
  • 🙅‍♀️ Limited free version with restricted features

Diarly

From 1.5K App Store ratings

What we love

  • 🚀 Simple and intuitive interface
  • 🔒 Password protection and encryption
  • 👍 Customizable themes and fonts
  • 👍 Seamless syncing across devices
  • 👍 Helpful journaling prompts

Room to improve

  • 🐛 Occasional crashes and syncing issues
  • 🔒 Premium features require subscription
  • 👎 Limited options for image handling
  • 👎 Lack of ability to edit entry dates

Bugs and requests

Gyroscope

Reported bugs

3 issues
  • Frequent app crashes and freezes
  • Syncing issues with connected apps and devices
  • Inaccurate step and activity tracking

Requested features

4 requests
  • Improved data export and integration options
  • Customizable data views and reporting
  • Better support for night shift/irregular sleep schedules
  • Expanded food logging and nutrition analysis

Diarly

Reported bugs

2 issues
  • Entries disappearing after app updates
  • Inability to password protect individual journals

Requested features

4 requests
  • Ability to add reminders and notifications
  • Option to organize entries into folders
  • Support for Markdown formatting and backlinking
  • Improved export and backup functionality

In-app purchases

8 purchases

Gyroscope

Subscriptions8
  • Gyroscope One$9.007 Days
  • Gyroscope One2 variants$29.991 Month
  • Gyroscope One7 Days trial$29.991 Month
Show 5 more
  • Gyroscope One$39.001 Month
  • Gyroscope Pro (Legacy)$99.006 Months
  • Gyroscope Ultra$149.003 Months
  • Gyroscope Pro$149.991 Year
  • Gyroscope One2 variants$299.001 Year
5 purchases

Diarly

Subscriptions5
  • Monthly AI+$1.991 Month
  • Monthly Premium$2.991 Month
  • Yearly Premium7 Days trial$24.991 Year
Show 2 more
  • Premium Journal – Yearly Plan7 Days trial$24.991 Year
  • Yearly Premium7 Days trial$29.991 Year

Questions

Is Gyroscope free?
Gyroscope is free to download, with in-app purchases available.
Is Diarly free?
Diarly is free to download, with in-app purchases available.
Which has better reviews, Gyroscope or Diarly?
Gyroscope is rated higher. Gyroscope averages 4.8 out of 5 from 52 ratings, while Diarly averages 4.7 from 1.5K ratings.
Do Gyroscope or Diarly have ads?
Gyroscope shows ads; Diarly does not.
Which is updated more often, Gyroscope or Diarly?
Gyroscope ships an update every 9 days, and Diarly fortnightly. Most recently, Gyroscope was updated on November 6, 2026 and Diarly on November 6, 2026.

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