Comparison

Cairn vs Gyroscope

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

Head to head
About

Cairn

This app provides offline maps and GPS tracking for outdoor adventures, ensuring you stay on course. It allows you to share your live location with a safety circle who will be automatically alerted if you are overdue.

Highlights
  • Offline maps and GPS tracking
  • Live trip sharing with safety circle
  • Automatic overdue alerts
  • Cell coverage maps
  • Real-time trail stats and ETA
  • Customizable location recording
Features
Read full description

Stay safe — and make sure someone knows if you’re overdue. Use offline maps and GPS to follow your route. See where you’ll have cell coverage and check distance, elevation, and your ETA as you go. Share your trip with your safety circle so they can follow along on a live map. If you’re overdue, they’re alerted automatically. Named one of the three best map apps for navigating the wilderness by Outside Magazine. GET FOUND IF YOU’RE OVERDUE • Automatic alerts: Your safety circle is notified if you’re overdue • Live map: Your safety circle can follow your trip and see your location history • Smart guidance: Your safety circle receives advice on when and how to respond if you’re overdue STAY ON TRACK • Offline maps: Download maps ahead of time so you can navigate without service • GPS tracking: Record your route and see where you’ve been • Cell coverage maps: See where you’re likely to have signal on the trail SEE TRAIL STATS & ETA • Trail stats: Track distance, elevation, and ETA in real time, customized for your activity type and speed—hiking, running, skiing, horseback riding, snow travel, mountain biking, and more • Make better decisions: Know how far you have left and how long it will take SHARE YOUR TRIP • Choose who to share with—no app required for them • Send a live map link so others can follow your progress CAIRN IS + Simple: Set up a trip in under a minute + Flexible: Works for hiking, backpacking, trail running, horseback riding, skiing, cycling, climbing, camping, hunting, fishing, boating, and more + Customizable: Control how often location is recorded to balance accuracy and battery FREE TRIAL Maps, trails, and cell coverage data are always free. Start a 7-day free trial to unlock all safety features. SUBSCRIPTION Subscribing to Cairn Premium helps support the app and our continued efforts to improve outdoor safety. Subscribers also get full access to features that help you stay safer on the trail. • Subscriptions automatically renew unless turned off at least 24 hours before the end of the current period • Your iTunes account will be charged for renewal within 24-hours prior to the end of the current period, and will identify the renewal cost. • Payment is charged to your iTunes account at confirmation of purchase • Terms: https://www.cairnme.com/terms • Manage subscriptions: https://support.apple.com/en-us/HT202039 Need support? Email us at adventure@cairnme.com

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/

Screenshots

Cairn4 screens
Gyroscope4 screens

Verdict

The call

The clearest difference is ads: Cairn at none against Gyroscope's shown. Cairn also leads on review sentiment (84% vs 65%) and ratings volume (533 vs 50). Gyroscope's advantage is update cadence (every 9 days vs every 3 months). On price, rating, in-app purchases and monetization model 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. Cairn sells 2 in-app purchases, starting at $4.99 per month and Gyroscope sells 8 in-app purchases, starting at $9.00 per 7 days. 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 — 4.7 for Cairn against 4.8 for Gyroscope. That said, the two scores are not equally well evidenced: Cairn has 533 ratings behind it against 50, so its average is the more settled of the two. Written reviews are what separate them: 84% of Cairn's written reviews are positive against 65% of Gyroscope's.

UpkeepUpdate frequency

Cairn ships an update every 3 months, Gyroscope every 9 days. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard4 real differences · 6 level
Cairn versus Gyroscope: the parameters behind the verdict, then further details
ParameterCairnGyroscope
PriceFreeFree
Rating4.7 (533 ratings)4.8 (50 ratings) — better
Positive reviews83.9% of reviews — better65.2% of reviews
Number of ratings533 — better50
Update frequencyEvery 3 monthsEvery 9 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS15.6 — better16.6
Further details — not scored
Size80 MB153 MB
Age rating4+17+
DeveloperFITCLIMB COM LLCGyroscope Innovations

Customer experience

Cairn

All ratings529 ratings
Positive94.0%
Neutral3.2%
Negative2.8%
Written reviews62 reviews
Positive83.9%
Neutral6.5%
Negative9.7%

Gyroscope

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

User reviews

Cairn

From 533 App Store ratings

What we love

  • ⭐ Excellent safety features
  • 🗺️ Detailed offline maps
  • 🔍 Helpful cell coverage information
  • 🕰️ Accurate ETA and trail stats
  • 👨‍👩‍👧‍👦 Provides peace of mind for family

Room to improve

  • 🐛 App crashes in offline mode
  • 🗺️ Missing some trail data
  • 🔋 High battery drain during use

Gyroscope

From 50 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

Bugs and requests

Cairn

Reported bugs

2 issues
  • Inaccurate location tracking in some areas
  • App crashes when phone is locked

Requested features

3 requests
  • Add SOS/emergency feature
  • Allow custom trail creation
  • Improve ability to import saved tracks

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

In-app purchases

2 purchases

Cairn

Subscriptions2
  • Monthly7 Days trial$4.991 Month
  • Yearly7 Days trial$26.991 Year
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

Questions

Is Cairn free?
Cairn is free to download, with in-app purchases available.
Is Gyroscope free?
Gyroscope is free to download, with in-app purchases available.
Which has better reviews, Cairn or Gyroscope?
Gyroscope is rated higher. Cairn averages 4.7 out of 5 from 533 ratings, while Gyroscope averages 4.8 from 50 ratings.
Do Cairn or Gyroscope have ads?
Gyroscope shows ads; Cairn does not.
Which is updated more often, Cairn or Gyroscope?
Cairn ships an update every 3 months, and Gyroscope every 9 days. Most recently, Cairn was updated on November 1, 2026 and Gyroscope on November 2, 2026.

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