# IV Infusion Calculator vs 4Call

The clearest difference is rating: 4Call at 5.0 against IV Infusion Calculator's 3.3. 4Call also leads on in-app purchases (none vs 1) and update cadence (fortnightly vs every 2 months). IV Infusion Calculator's advantage is ratings volume (74 vs 1). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. IV Infusion Calculator sells 1 one-off in-app purchase. 4Call asks for nothing beyond the download.

4Call holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: IV Infusion Calculator has 74 ratings behind it against 1, so its average is the more settled of the two.

IV Infusion Calculator ships an update every 2 months, 4Call fortnightly. The most recent releases landed on November 8, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | IV Infusion Calculator | 4Call |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (74 ratings)](https://appshunter.io/ios/app/iv-infusion-calculator/id640175976/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/4call/id1516591270/reviews)** |
| Number of ratings | **74** | 1 |
| Positive reviews | 62.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 1 MB | 33 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nilbit LLC](https://appshunter.io/developer/545898614) | [Solvative LLC](https://appshunter.io/developer/445403999) |

## What reviewers say

### IV Infusion Calculator

[App page](https://appshunter.io/ios/app/iv-infusion-calculator/id640175976)

This medical app provides a simple and straightforward tool for calculating IV infusion rates. It supports calculations for pumps and gravity, offering results in mL/hr, gtts/min, and gtts/15seconds. Additional calculators for IV push and fluid rates are also included.

**Highlights:** IV infusion rate calculation (mL/hr, gtts/min, gtts/15sec), IV Push calculator, Fluid Rate calculator, Dose calculation (mL/hr to dose), Support for pumps and gravity

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IV Infusion Calculator Unlock | $0.99 | one-time |


### 4Call

[App page](https://appshunter.io/ios/app/4call/id1516591270)

This application streamlines communication within healthcare facilities, connecting staff to residents efficiently. It offers a modern, future-proof solution that integrates with existing hardware for easy installation, bridging the gap between healthcare and hospitality.

**Highlights:** Seamless staff-to-resident communication, Modern healthcare communication solution, Works with existing hardware, Fast and simple installation, Hybrid care and hospitality models

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IV Infusion Calculator free?

IV Infusion Calculator is free to download, with in-app purchases available.

### Is 4Call free?

4Call is free to download, with no in-app purchases.

### Which has better reviews, IV Infusion Calculator or 4Call?

4Call is rated higher. IV Infusion Calculator averages 3.3 out of 5 from 74 ratings, while 4Call averages 5.0 from 1 ratings.

### Do IV Infusion Calculator or 4Call have ads?

Neither IV Infusion Calculator nor 4Call shows ads.

### Which is updated more often, IV Infusion Calculator or 4Call?

IV Infusion Calculator ships an update every 2 months, and 4Call fortnightly. Most recently, IV Infusion Calculator was updated on November 8, 2026 and 4Call 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.*