Comparison

Petal for Physicians vs The Ottawa Rules

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

Head to head
About

Petal for Physicians

This app provides a secure cloud platform for healthcare organizations to manage patient care delivery workflows. It enables real-time orchestration of all aspects of patient care, enhancing efficiency and coordination.

Highlights
  • Data-driven secured cloud platform
  • Real-time workflow orchestration
  • Patient care delivery management
  • Healthcare organization empowerment
Features
Read full description

Petal empowers healthcare organizations with a data-driven secured cloud platform designed to orchestrate all your patient care delivery workflows in real-time.

About

The Ottawa Rules

This app provides accessible clinical decision rules developed by researchers to help healthcare professionals make informed choices. It aims to reduce unnecessary diagnostic imaging and emergency room wait times, improving patient comfort and healthcare costs.

Highlights
  • Accessible clinical decision rules
  • Reduces unnecessary imaging
  • Decreases ER wait times
  • Enhances patient comfort
  • Lowers healthcare costs
Features
Read full description

The Ottawa Rules are a set of clinical decision rules developed by Dr. Ian Stiell and his research team at The Ottawa Hospital Research Institute and the University of Ottawa. The rules have been demonstrated to decrease unnecessary diagnostic imaging and emergency room wait times which enhances patient comfort and reduces health care costs. This app was developed to make the rules more accessible. This study aims to evaluate whether the usability of the app is related to the modality used and to evaluate whether it has any impact on diagnostic imaging rates.

Screenshots

Petal for Physicians4 screens
The Ottawa Rules3 screens

Verdict

The call

The clearest difference is review sentiment: The Ottawa Rules at 100% against Petal for Physicians's 31%. The Ottawa Rules also leads on rating (5.0 vs 1.0) and monetization model (free vs freemium). On price, ratings volume, update cadence 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

The Ottawa Rules holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews point the same way: 31% of Petal for Physicians's written reviews are positive against 100% of The Ottawa Rules's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard4 real differences · 6 level
Petal for Physicians versus The Ottawa Rules: the parameters behind the verdict, then further details
ParameterPetal for PhysiciansThe Ottawa Rules
PriceFreeFree
Rating1.0 (4 ratings)5.0 (2 ratings) — better
Positive reviews31.4% of reviews100.0% of reviews — better
Number of ratings4 — better2
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.09.0 — better
Further details — not scored
Size50 MB155 MB
Age rating4+12+
DeveloperPetal Solutions Inc.Ottawa Hospital Research Institute

Customer experience

Petal for Physicians

All ratings4 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews51 reviews
Positive31.4%
Neutral5.9%
Negative62.7%

The Ottawa Rules

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Petal for Physicians

Reported bugs

16 issues
  • Frequent disconnections and server connection loss
  • App freezes and requires restarts
  • Login issues, requires repeated logins
  • App gets stuck on loading screen
  • Marketplace refreshes to the beginning when switching apps
Show 11 more
  • App crashes frequently, especially after updates
  • Unable to log in
  • App doesn't open or requires multiple restarts
  • Password required even when entered
  • Sync issues with calendar after iOS updates
  • App not adapting to iPad orientation (portrait only)
  • Redirects to app from website on iPad
  • Cannot see group calendars after update
  • Update loop preventing login
  • Continuous crashes and banner message not clearing
  • Calendar not reliably loading

Requested features

9 requests
  • Allow account cancellation from app
  • Fix constant refreshing of marketplace
  • Improve iPad orientation support (landscape)
  • Support password managers (1Password, etc.)
  • Support Touch ID and Face ID login
Show 4 more
  • Allow viewing colleague schedules
  • Allow selecting multiple days for availability/unavailability
  • Add ability to see schedules of colleagues
  • Allow landscape view on iPad

The Ottawa Rules

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Petal for Physicians

No in-app purchases

None

The Ottawa Rules

No in-app purchases

Questions

Is Petal for Physicians free?
Petal for Physicians is free to download, with no in-app purchases.
Is The Ottawa Rules free?
The Ottawa Rules is free to download, with no in-app purchases.
Which has better reviews, Petal for Physicians or The Ottawa Rules?
The Ottawa Rules is rated higher. Petal for Physicians averages 1.0 out of 5 from 4 ratings, while The Ottawa Rules averages 5.0 from 2 ratings.
Do Petal for Physicians or The Ottawa Rules have ads?
Neither Petal for Physicians nor The Ottawa Rules shows ads.
Which is updated more often, Petal for Physicians or The Ottawa Rules?
Petal for Physicians ships an update every 2 months, and The Ottawa Rules every 2 months. Most recently, Petal for Physicians was updated on November 1, 2026 and The Ottawa Rules on November 2, 2026.

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