Comparison

Cardalis vs Ovyso

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

Head to head
About

Cardalis

Monitor your dog's resting respiratory rate to help manage heart failure. This app helps you record and graph the data, which can then be emailed to your veterinarian.

Highlights
  • Measure resting respiratory rate
  • Record rate as a graph
  • Email results to veterinarian
  • Track heart failure progression
  • Informational and educational tool
Features
Read full description

Why monitor resting respiratory rate? An increase in resting respiratory rate can be an early sign that your dog’s condition needs attention. Regular monitoring helps: ∙ Detect changes early ∙ Support treatment follow-up ∙ Provide valuable information to your veterinarian A simple way to support heart health If your dog has been diagnosed with a heart condition, or requires ongoing monitoring, tracking their resting respiratory rate at home is an important part of care. Using the Respiratory Rate App helps you: ∙ Easily measure respiratory rate at rest ∙ Record and track results over time ∙ Monitor activity levels during your dog walks ∙ Program helpful reminders for medications or monitoring ∙ Share useful information with your veterinary team ∙ Stay actively involved in your dog’s care between visits How to Use the application ∙ Measure your dog’s breathing while they are calm and resting ∙ Record the number of breaths per minute ∙ Track results over time ∙ Contact your veterinarian if values increase or if you have concerns

About

Ovyso

Read full description

Ovyso turns the steps, sleep, heart rate and vitals already sitting in Apple Health into Home Screen and Lock Screen widgets worth looking at twice. Most health widgets are an afterthought — a stock ring in one flat color. Ovyso is warm and Apple-native, tiles and hero ring glowing with liquid light, every metric in its own semantic color: pick a layout, pick your metrics, pick a finish, and it lives on your Home Screen exactly as designed, staying current on its own. SIX WIDGET LAYOUTS • Metric — one hero number with its goal • Dashboard — a full grid, mirrors your day at a glance • Rings — up to three goals as concentric rings • Trend — seven days of bars next to today • Lock Screen — circular, rectangular or inline • Circle — your circle's current event and latest result SEVEN FINISHES Aurora, Graphite and Paper are free; Coral, Ocean, Forest and Solar unlock with Ovyso Pro — seven colorful, Apple-native grounds, all built on the same system that colors the data itself: steps and activity in orange, heart in red, sleep in indigo, vitals in blue, body in teal, everywhere they appear. Numbers render in Onest, a rounded numeral face built for glancing — a serif option is in the Studio too. THE STUDIO Build your own designs: choose a layout, choose which metrics it shows, choose a finish and a typography style, preview it across every size before you add it — then add it from the Home Screen widget gallery like any other widget. CIRCLES Walk with friends in events of five kinds: a Race for the most steps or distance; Target Days, won by the most days on target; a Team Goal, one big number together; a Team Streak, everyone on target every day; or a Journey along a real route like the Camino de Santiago — a progress map, an illustrated postcard at every stop — or your own route between two places. Most kinds can repeat weekly or monthly. Results come with a podium or the team's outcome, awards, and laurels that lift your rank; the latest winner holds the circle's crown, and a season of contests crowns a champion. Rank and season finishes are earned, never sold. Share a result as a poster. Invite anyone by link or six-character code. Joining is free; hosting a circle is part of Ovyso Pro. Circles needs an account: sign in with Apple or with an email address. Add friends by link, QR code or username — always free. PROFILE AND TRENDS Trends sets this week against last and charts twelve weeks. Your profile holds your rank, awards, journey stamps and records — best day, best week, longest streak — each record a shareable card in your chosen finish. No made-up scores, just what actually happened. WORKS WITH WHATEVER WRITES TO APPLE HEALTH Ovyso reads Apple Health directly, so it works with an Apple Watch, Garmin, Oura, Withings, or your iPhone on its own — including the data your Fitbit syncs to Apple Health through the Google Health app's Apple Health connection. No separate account or sync to configure inside Ovyso itself. ASK SIRI "Hey Siri, what are my steps in Ovyso?" — check a metric without opening the app. PRIVACY, PLAINLY Everything Ovyso reads from Apple Health stays on your iPhone, except the daily steps and distance you share in Circles and with the friends you accept — Circles also sees the goals you set and your name, and the friends you accept also see your username. Ovyso has no analytics, no ads and no tracking of any kind. Delete your account in Settings at any time; your totals, goals, friends and results go with it. Full detail at the privacy policy link on this page. OVYSO PRO The core app is free: two saved designs, three finishes, every widget layout, share cards in any finish, and joining as many circles as you're invited to. Ovyso Pro removes the design limit, unlocks all seven finishes, and lets you host circles of your own — one payment, no subscription. Ovyso will never show Readiness, Cardio Load, or a Sleep Score — Apple Health has no such data, and Ovyso won't invent it.

Screenshots

Cardalis4 screens
Ovyso4 screens

Verdict

The call

The clearest difference is in-app purchases: Cardalis at none against Ovyso's 1. Cardalis also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.0). Ovyso's advantage is update cadence (every 2 days vs every 6 weeks). On price and ads 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. Ovyso sells 1 one-off in-app purchase. Cardalis asks for nothing beyond the download.

UpkeepUpdate frequency

Cardalis ships an update every 6 weeks, Ovyso every 2 days. The most recent releases landed on October 21, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
Cardalis versus Ovyso: the parameters behind the verdict, then further details
ParameterCardalisOvyso
PriceFreeFree
Rating2.3 (260 ratings) — better—
Positive reviews20.9% of reviews—
Number of ratings260 — better—
Update frequencyEvery 6 weeksEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better18.0
Further details — not scored
Size22 MB101 MB
Age rating4+12+
DeveloperCeva Sante Animale S.A.Mert Can Gozukara

Bugs and requests

Cardalis

Reported bugs

18 issues
  • Critical data loss during app updates
  • App freezes and crashes on launch or navigation
  • Email functionality not working or removed
  • Print functionality broken or removed
  • Notes not saved or retrievable
Show 13 more
  • Persistent high-reading alerts cannot be dismissed
  • Graph display corrupted on iPhone 15 Pro Max (notch coverage)
  • Involuntary screen rotation between portrait/landscape
  • Keyboard popup blocks comment input field
  • Settings changes not saving (target frequency modification)
  • Incorrect timezone display with no adjustment option
  • Daylight saving time not handled correctly
  • Notification badge (red circle with '1') cannot be removed
  • Graph data outside screen boundaries
  • Reminders triggering at wrong frequency or times
  • Menu buttons hidden by keyboard
  • Incompatibility with older iOS versions
  • iPad compatibility issues

Requested features

18 requests
  • Support for multiple pets/dogs in single app
  • Cat-friendly version or pet-neutral branding
  • Ability to add notes to all readings (not just high ones)
  • Customizable timer intervals (15, 60 seconds)
  • Ability to enter past/historical readings
Show 13 more
  • Multi-user sharing for same pet
  • Better graph navigation and date range filtering
  • Acoustic signal when timer ends
  • List view option for data display
  • Awake vs sleeping breathing rate distinction
  • Comments visible on chart with tap-to-view icons
  • Remove splash screen on app launch
  • Improved graph with hover-over time details
  • Export as JPEG format
  • Line-of-best-fit for multiple daily readings
  • Ability to modify/delete individual readings
  • Disable reminders without data loss
  • Timezone settings adjustment

Ovyso

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Cardalis

No in-app purchases

1 purchases

Ovyso

One-time1
  • Ovyso Pro$9.99

Questions

Is Cardalis free?
Cardalis is free to download, with no in-app purchases.
Is Ovyso free?
Ovyso is free to download, with in-app purchases available.
Do Cardalis or Ovyso have ads?
Neither Cardalis nor Ovyso shows ads.
Which is updated more often, Cardalis or Ovyso?
Cardalis ships an update every 6 weeks, and Ovyso every 2 days. Most recently, Cardalis was updated on October 21, 2026 and Ovyso on October 8, 2026.

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