PatientEngine vs Subzero Order
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PatientEngine
Streamline patient communication and appointment scheduling with automated text messaging and a visual lead pipeline. Convert leads, re-engage past patients, and reduce no-shows with efficient, automated follow-ups.
- Automated text message follow-ups
- Campaigns for past patients
- Lead conversion tools
- Google review generation
- Appointment scheduling and confirmation
- Visual lead pipeline management
- Auto-booking calendar widget
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Schedule Patients, on Demand. In todays world no one is is picking up the phone. Yet, “90% of people read a text message within the first 3 minutes” and 89% of your patients prefer them to phone calls and emails. So the next time your friend tells you they’re “just seeing this now” a day later, they’re lying. Take our word for it. We make texting easy, including enabling your current business phone number to text patients. With PatientEngine, you’ll be able to: Automatically follow up with leads via text, email, live call transfers, voicemail drops and Facebook messenger Create campaigns to bring back past patients Convert leads into patients Build Google reviews from satisfied customers Schedule and confirm appointments Save Time & Money Still making phone calls to confirm appointments or reach out to new customers? Today, phone calls are inefficient, and worse, ineffective. PatientEngine allows you and your patients to quickly exchange messages, without having to wait for a time when both parties are free. PatientEngine clients quickly see upwards of 50% time savings per staff member when using text vs the phone. Manage and Automate Your Lead Pipeline Tired of using messy spreadsheets to track all your leads? Or even worse you don’t know which lead came from which source and what part of the customer journey they’re in? Use our drag and drop, visual pipeline management tool to easily see what stage of the customer journey your leads are in, what source they came from as well as be able to automate follow up messages based on what stage they’re in! Calendar to Manage and Auto Book your Leads and Patients No longer do you have to chase leads to book their appointment. Now you can use our native calendar widget to have leads book themselves through your advertising campaigns and/or place it on your website so you can book more appointments from your website visitors. All of the confirmation and reminder messaging can now be completed automated and you can even create a voicemail reminder. This alone will drastically reduce your no show rates while simultaneously saving your staff hours per week of chasing and remind patients about their appointments!
Subzero Order
Manage your dry ice orders with ease. Place, edit, and delete orders online, add new shipping addresses, and track your order status in real-time. Receive notifications and proof of delivery for all your orders.
- Place, edit, and delete orders
- Add new shipping addresses
- Track order status
- Receive proof of delivery
- Get order notifications
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Subzero Order App Overview: Subzero Order gives you the possibility to our customers to place, edit, and delete orders online; and keep them posted with the order status. Add a new shipping address. Get POD and all notifications about what is happening with their orders.
Screenshots
Verdict
The clearest difference is ratings volume: PatientEngine at 4 against Subzero Order's 1. On price, rating, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for PatientEngine against 5.0 for Subzero Order. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
PatientEngine ships an update every 2 months, Subzero Order every 3 weeks. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.
| Parameter | PatientEngine | Subzero Order |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 15.2 — better |
| Further details — not scored | ||
| Size | 341 MB | 8 MB |
| Age rating | 4+ | 17+ |
| Developer | MedSpa Advertising LLC | Jorge de la vega yabor |
Customer experience
PatientEngine
Subzero Order
In-app purchases
PatientEngine
No in-app purchases
Subzero Order
No in-app purchases
Questions
Is PatientEngine free?
Is Subzero Order free?
Which has better reviews, PatientEngine or Subzero Order?
Do PatientEngine or Subzero Order have ads?
Which is updated more often, PatientEngine or Subzero Order?
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