# Rx Days’ Supply Calculator vs VLOOP Patient

The clearest difference is in-app purchases: VLOOP Patient at none against Rx Days’ Supply Calculator's 1. Rx Days’ Supply Calculator's advantage is iOS requirement (13.0 vs 15.1). On price, update cadence, 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. VLOOP Patient asks for nothing beyond the download.

Rx Days’ Supply Calculator ships an update every 4 months, VLOOP Patient every 3 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Rx Days’ Supply Calculator | VLOOP Patient |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/rx-days-supply-calculator/id1616890136/reviews)** | — |
| Number of ratings | **7** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Subscription | — |
| Size | 51 MB | 43 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [PAAS National Technologies LLC](https://appshunter.io/developer/1616890139) | [HEARTLINK+ GLOBAL, LLC](https://appshunter.io/developer/1838813847) |

## What reviewers say

### 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 |


### VLOOP Patient

[App page](https://appshunter.io/ios/app/vloop-patient/id6756521974)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rx Days’ Supply Calculator free?

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

### Is VLOOP Patient free?

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

### Do Rx Days’ Supply Calculator or VLOOP Patient have ads?

Neither Rx Days’ Supply Calculator nor VLOOP Patient shows ads.

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

Rx Days’ Supply Calculator ships an update every 4 months, and VLOOP Patient every 3 months. Most recently, Rx Days’ Supply Calculator was updated on November 3, 2026 and VLOOP Patient on October 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.*