# CalcRx vs PTCB

CalcRx and PTCB both sit at 4.7 stars, but that hides the real split: 100% of CalcRx's written reviews are positive against 45% of PTCB's. PTCB's advantage is update cadence (every 2 weeks vs every 10 months) and ratings volume (557 vs 15). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. CalcRx sells 2 in-app purchases, starting at $0.99 per month and PTCB sells 2 in-app purchases, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for CalcRx against 4.7 for PTCB. That said, the two scores are not equally well evidenced: PTCB has 557 ratings behind it against 15, so its average is the more settled of the two. Written reviews are what separate them: 100% of CalcRx's written reviews are positive against 45% of PTCB's.

CalcRx ships an update every 10 months, PTCB every 2 weeks. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | CalcRx | PTCB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (15 ratings)](https://appshunter.io/ios/app/calcrx/id1005970010/reviews) | [4.7 (557 ratings)](https://appshunter.io/ios/app/ptcb/id1558309982/reviews) |
| Number of ratings | 15 | **557** |
| Positive reviews | **100.0% of reviews** | 45.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 29 MB | 36 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Dabbling Badger LLC](https://appshunter.io/developer/455874932) | [MastrAPI](https://appshunter.io/developer/1618627725) |

## What reviewers say

### CalcRx

[App page](https://appshunter.io/ios/app/calcrx/id1005970010)

This app helps medical professionals quickly calculate prescription dispense quantities and billable days supply. It handles various dosage forms and complex regimens, saving valuable time for pharmacists, nurses, and prescribers.

**Highlights:** Prescription quantity calculations, Billable days supply determination, Supports various dosage forms, Handles complex regimens, Standard calculator with history, Sig code reference

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Full Access | $0.99 | per month |
| Yearly Full Access | $9.99 | per year |


### PTCB

[App page](https://appshunter.io/ios/app/ptcb/id1558309982)

Prepare for your Pharmacy Technician Certification Exam with a personalized study plan. Practice with over 500 questions covering key knowledge domains and track your progress with detailed statistics. Boost your confidence to pass the exam on your first attempt.

**Highlights:** Personalized study plan, 500+ practice questions, Track strengths and weaknesses, Detailed test statistics, Compare scores to community average, Covers key pharmacy knowledge domains

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PTCB Pharmacy Technician | $24.99 | per month |
| Lifetime | $99.99 | one-time |

**What reviewers like**

- 👍 Detailed explanations for answers
- 👍 Helps users learn material
- 👍 Organizes study material
- 👍 Engaging and motivating study tool
- 👍 Good for test preparation

**What reviewers complain about**

-  repetitive questions
-  repetitive questions
-  repetitive questions
-  repetitive questions
-  poorly formatted math explanations

**Reported bugs**

- App does not update questions
- App does not work after purchase
- Charged for free trial

**Requested features**

- Update app questions regularly
- Improve formatting of math explanations


## Frequently asked questions

### Is CalcRx free?

CalcRx is free to download, with in-app purchases available.

### Is PTCB free?

PTCB is free to download, with in-app purchases available.

### Which has better reviews, CalcRx or PTCB?

CalcRx and PTCB are both rated 4.7 out of 5 on the App Store, from 15 and 557 ratings respectively.

### Do CalcRx or PTCB have ads?

Neither CalcRx nor PTCB shows ads.

### Which is updated more often, CalcRx or PTCB?

CalcRx ships an update every 10 months, and PTCB every 2 weeks. Most recently, CalcRx was updated on October 2, 2026 and PTCB on September 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*