CPS by CPhA vs HALO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CPS by CPhA
Access essential, evidence-based drug information for healthcare professionals. Choose between drug monographs or full access with therapeutic guidance and tools. Stay updated with critical warnings and advisories.
- Evidence-based drug monographs
- Therapeutic information
- Non-prescription therapy guidance
- Drug tables and algorithms
- Medical calculators
- Critical updates and warnings
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CPS (formerly RxTx) has a new appearance. CPS is still the reliable, evidence-based drug resource it has always been and provides essential drug information at the point-of-care for health care practitioners. Now offering two subscription options – CPS Drug Information or CPS Full Access. CPS Drug Information is the Canadian standard for drug monographs, containing thousands of products including monographs for drugs, vaccines, natural health products and medical devices, approved by Health Canada. CPS Full Access includes all content from CPS Drug Information and the most current, evidence-based therapeutic information and non-prescription therapy for most common conditions, with cross-referenced drug tables and algorithms and DC condition-based drug tables. Both subscriptions types provide critical updates such as warnings and advisories; and useful tools such as medical calculators.
HALO
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HALO: EM is a bedside reference for rare, time-critical emergencies — the procedures you perform rarely and cannot afford to get wrong. It works fully offline. AROUND 150 PROCEDURE CARDS • Airway • Resuscitation • Obstetric emergencies • Access and decompression • Core emergency department procedures • Toxicology • Critical care • Pediatric and neonatal emergencies Each card is step-by-step, written to be read while you are doing the procedure, not an hour before it. DECISION ALGORITHMS Around 35 guided algorithms that ask one question at a time and take you to the decision, instead of handing you a flowchart to decode under pressure. IMMOBILIZATION REFERENCE Casting and splinting guidance for injuries across five body regions. BUILT FOR THE BEDSIDE • Resuscitation mode — large type, with a timer • Weight-based dose calculator that flags dose ceilings • Search that tolerates typos and abbreviations • Local notes on any card, so your department's protocol lives with the card • Dark mode and adjustable text size FULLY OFFLINE, NO DATA COLLECTED HALO: EM makes no network requests and collects no data. It works in a resus bay with no signal, on a retrieval, or anywhere else the network does not reach. WHO IT IS FOR Qualified healthcare professionals and trainees: emergency physicians, residents, rural and remote generalists, paramedics, emergency nurses and critical care clinicians. HALO: EM is a reference aid. It is not a substitute for clinical judgment, local protocols or specialist advice. Verify all doses against your institutional guidance before administration. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: HALO at every 2 days against CPS by CPhA's every 4 months. On price, ads, in-app purchases and device support 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.
CPS by CPhA ships an update every 4 months, HALO every 2 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.
| Parameter | CPS by CPhA | HALO |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) — better | — |
| Positive reviews | 13.1% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Subscription | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.2 — better | 15.0 |
| Further details — not scored | ||
| Size | 177 MB | 8 MB |
| Age rating | 17+ | 17+ |
| Developer | Canadian Pharmacists Association (CPhA) | Arjan Dhoot |
Bugs and requests
CPS by CPhA
Reported bugs
10 issues- Cannot sign in
- App won't download content
- App won't load
- App won't open
- Login issues with enterprise accounts
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- Content erased with update
- App is empty/no content
- Sign in button non-functional
- Search function hangs or is slow
- Updates do not install
Requested features
5 requests- Add in-page search function
- Improve font size options
- Add CTC content
- Allow download in one language
- Provide option to not download all data
HALO
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CPS by CPhA
No in-app purchases
HALO
No in-app purchases









