CANImmunize vs OnCall Health
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CANImmunize
Securely store and manage your Canadian vaccination records digitally. Receive timely reminders for upcoming immunizations and stay informed about provincial schedules and disease outbreaks. Access trusted health resources and educational content.
- Digital immunization record storage
- Vaccination reminders
- Provincial schedule updates
- Customized vaccination schedules
- Outbreak information
- Trusted health resources
- Educational games and comics
Read full descriptionHide full description
CANImmunize is a digital immunization record for Canadians that securely stores your vaccination records and helps you get vaccinated on time. Use CANImmunize to: * Track childhood, adult, and travel vaccinations for yourself and your family members * Receive reminders about upcoming vaccinations right to your home screen. * Stay up-to-date with the vaccination schedule of your Canadian province or territory * Create customized vaccination schedules for family members receiving travel or other types of vaccines * Learn about outbreaks of vaccine-preventable diseases in your area * Access information and resources about vaccination from trusted Canadian health sources * Have fun learning about vaccinations with games, videos, and the Immunity Warriors comic book
OnCall Health
Connect with your healthcare provider through secure online video appointments. This app requires an existing account to access services. Reach out to support for assistance.
- Online video consultations
- Secure healthcare provider meetings
- Existing account required
- Contact support available
Read full descriptionHide full description
OnCall Health allows you to meet with your healthcare provider online. In order to use this app you need an existing account on OnCall Health. Contact support: support@oncallhealth.ca / support@oncallhealth.us
Screenshots
Verdict
The clearest difference is rating: CANImmunize at 4.6 against OnCall Health's 3.1. CANImmunize also leads on review sentiment (29% vs 13%) and ratings volume (46 vs 14). OnCall Health's advantage is monetization model (free vs ad-supported). On price, update cadence, ads 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CANImmunize holds the better App Store score, 4.6 against 3.1. Both are backed by a comparable volume of ratings — 46 and 14 respectively. Written reviews point the same way: 29% of CANImmunize's written reviews are positive against 13% of OnCall Health's.
CANImmunize ships an update every 3 weeks, OnCall Health fortnightly. The most recent releases landed on September 23, 2026 and September 18, 2026 respectively.
| Parameter | CANImmunize | OnCall Health |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (46 ratings) — better | 3.1 (14 ratings) |
| Positive reviews | 28.9% of reviews — better | 13.0% of reviews |
| Number of ratings | 46 — better | 14 |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 81 MB | 220 MB |
| Age rating | 17+ | 12+ |
| Developer | CANImmunize Inc. | On Call Health Inc. |
Customer experience
CANImmunize
OnCall Health
Bugs and requests
CANImmunize
Reported bugs
21 issues- App crashes when opening records
- App crashes on startup
- App crashes after update
- Cannot open app on older iPhones (iOS 12)
- Login errors
Show 16 moreShow fewer
- Logs out frequently
- Password reset link not working
- Information disappeared
- Duplicate entries after reinstall
- Cannot access account after update
- Data not being saved
- Spikevax bivalent vaccine changes to paediatric
- COVID booster shows as paediatric
- Wrong drug showing in record
- App freezes on 'Loading'
- Upload button not working
- UI sections overlap on iPhone
- Cannot access account or reset password after update
- Data lost after update
- Lost all immunization records after update
- Lost all data after upgrade
Requested features
10 requests- Option to add medical conditions
- Ability to upload PDFs
- Transfer adult child's data to their account
- Sync with Apple HealthKit
- Option to add documentation (medical exemptions)
Show 5 moreShow fewer
- Add RSV vaccine and COVID XBB boosters
- Option to add vaccine product not in database
- Save password or tie to Touch ID/Face ID
- Upload to all public health units in Canada
- List/filter vaccines by name
OnCall Health
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CANImmunize
No in-app purchases
OnCall Health
No in-app purchases
