# IV drip calculation vs Drip Rate Calculator

The clearest difference is update cadence: Drip Rate Calculator at every 9 days against IV drip calculation's monthly. Drip Rate Calculator also leads on iOS requirement (18.0 vs 26.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. IV drip calculation sells 1 one-off in-app purchase and Drip Rate Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

IV drip calculation ships an update monthly, Drip Rate Calculator every 9 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | IV drip calculation | Drip Rate Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/drip-rate-calculator/id6775409848/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 8 MB | 68 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [BLUE COMET LABS LLC](https://appshunter.io/developer/1492055170) | [Romiick LLC](https://appshunter.io/developer/1716146475) |

## What reviewers say

### IV drip calculation

[App page](https://appshunter.io/ios/app/iv-drip-calculation-ondrip/id6483362139)

This app simplifies IV drip rate calculation and adjustment using intuitive vibration feedback. It allows saving common settings and synchronizing them between iPhone and Apple Watch, aiding healthcare professionals in providing efficient patient care.

**Highlights:** Calculate drip rate, Vibration-based drip adjustment, Save infusion settings, Sync between iPhone and Apple Watch, Intuitive UI

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OnDrip Pro - Lifetime | $2.99 | one-time |


### Drip Rate Calculator

[App page](https://appshunter.io/ios/app/drip-rate-calculator/id6775409848)

This medical app assists nurses and healthcare professionals in calculating IV drip rates. It provides estimated drip counts, intervals, and flow rates, with companion Apple Watch functionality for convenient wrist-based adjustments and rhythm checks. A free version offers core features, with a one-time purchase for Pro to unlock advanced options.

**Highlights:** Calculate drops per minute, Calculate seconds per drop, Show hourly infusion volume, Support adult and pediatric IV sets, Apple Watch integration for results and adjustments, Rhythm check with sound or vibration, Multiple timers with notifications

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $9.99 | one-time |


## Frequently asked questions

### Is IV drip calculation free?

IV drip calculation is free to download, with in-app purchases available.

### Is Drip Rate Calculator free?

Drip Rate Calculator is free to download, with in-app purchases available.

### Do IV drip calculation or Drip Rate Calculator have ads?

Neither IV drip calculation nor Drip Rate Calculator shows ads.

### Which is updated more often, IV drip calculation or Drip Rate Calculator?

IV drip calculation ships an update monthly, and Drip Rate Calculator every 9 days. Most recently, IV drip calculation was updated on October 30, 2026 and Drip Rate Calculator on October 31, 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.*