# MatchRX vs Rx Days’ Supply Calculator

The clearest difference is in-app purchases: MatchRX at none against Rx Days’ Supply Calculator's 1. MatchRX also leads on update cadence (every 3 weeks vs every 4 months) and ratings volume (469 vs 7). Rx Days’ Supply Calculator's advantage is rating (5.0 vs 4.8) and iOS requirement (13.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Rx Days’ Supply Calculator sells 1 in-app purchase, starting at $5.99 per year. MatchRX asks for nothing beyond the download.

Rx Days’ Supply Calculator holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: MatchRX has 469 ratings behind it against 7, so its average is the more settled of the two.

MatchRX ships an update every 3 weeks, Rx Days’ Supply Calculator every 4 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | MatchRX | Rx Days’ Supply Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (469 ratings)](https://appshunter.io/ios/app/matchrx/id1498036065/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/rx-days-supply-calculator/id1616890136/reviews)** |
| Number of ratings | **469** | 7 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | **Free** | Subscription |
| Size | 14 MB | 51 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [MatchRX](https://appshunter.io/developer/1498036064) | [PAAS National Technologies LLC](https://appshunter.io/developer/1616890139) |

## What reviewers say

### MatchRX

[App page](https://appshunter.io/ios/app/matchrx/id1498036065)

This app allows users to manage prescription orders on their mobile device. You can buy, post, scan, and sell NDC's, and receive notifications for Rx orders.

**Highlights:** Purchase NDC's, Post NDC's, Scan NDC's, Sell NDC's, Receive notifications, Confirm Rx orders

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

**In-app purchases:** none


### Rx Days’ Supply Calculator

[App page](https://appshunter.io/ios/app/rx-days-supply-calculator/id1616890136)

This app helps community pharmacists and technicians accurately calculate medication days' supply and quantity. It offers specialized calculators for insulin, topical creams, Santyl, and eye drops, minimizing PBM recoupments and aiding recordkeeping.

**Highlights:** Days' supply and quantity calculators, Insulin calculations (all dosage forms, biologics, priming units), Topical creams and ointments (fingertip unit method), Santyl dosing calculator (multiple wounds), Eye drops calculator (solutions, suspensions, PBM specific), PDF generation for recordkeeping, Wireless printing and emailing of results

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $5.99 | per year |


## Frequently asked questions

### Is MatchRX free?

MatchRX is free to download, with no in-app purchases.

### Is Rx Days’ Supply Calculator free?

Rx Days’ Supply Calculator is free to download, with in-app purchases available.

### Which has better reviews, MatchRX or Rx Days’ Supply Calculator?

Rx Days’ Supply Calculator is rated higher. MatchRX averages 4.8 out of 5 from 469 ratings, while Rx Days’ Supply Calculator averages 5.0 from 7 ratings.

### Do MatchRX or Rx Days’ Supply Calculator have ads?

Neither MatchRX nor Rx Days’ Supply Calculator shows ads.

### Which is updated more often, MatchRX or Rx Days’ Supply Calculator?

MatchRX ships an update every 3 weeks, and Rx Days’ Supply Calculator every 4 months. Most recently, MatchRX was updated on November 7, 2026 and Rx Days’ Supply Calculator on November 3, 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.*