# Preterm Growth Tracker Pro vs NeoFast Calc

The clearest difference is price: NeoFast Calc at Free against Preterm Growth Tracker Pro's $35.99. NeoFast Calc also leads on update cadence (fortnightly vs every 2 months). Preterm Growth Tracker Pro's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

NeoFast Calc is free to download; Preterm Growth Tracker Pro costs $35.99 up front. NeoFast Calc sells 2 in-app purchases, starting at $5.99 per month. Preterm Growth Tracker Pro asks for nothing beyond the download.

Preterm Growth Tracker Pro ships an update every 2 months, NeoFast Calc fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Preterm Growth Tracker Pro | NeoFast Calc |
| --- | --- | --- |
| Price | $35.99 | **Free** |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | — | Freemium |
| Size | 2 MB | 195 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Quatrian Inc.](https://appshunter.io/developer/404828595) | [Ponto Direto Tech Ltda](https://appshunter.io/developer/1789425714) |

## What reviewers say

### Preterm Growth Tracker Pro

[App page](https://appshunter.io/ios/app/preterm-growth-tracker-pro/id1109760799)

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

**In-app purchases:** none


### NeoFast Calc

[App page](https://appshunter.io/ios/app/neofast-calc/id6740295230)

This medical reference tool simplifies daily tasks for healthcare professionals caring for newborns and children. It provides evidence-based prescribing assistance, drug interaction information, and detailed drug data. The app aims to enhance safety and efficiency during medical duties.

**Highlights:** Prescriptive drug dosing assistance, Drug interaction details, Adverse reaction information, International brand names, Dose adjustment for renal/hepatic impairment, Extensive drug presentation database

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NeoFast® - Monthly Plan | $5.99 | per month |
| NeoFast® - Yearly Plan | $59.99 | per year |


## Frequently asked questions

### Is Preterm Growth Tracker Pro free?

Preterm Growth Tracker Pro costs $35.99, with no in-app purchases.

### Is NeoFast Calc free?

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

### Do Preterm Growth Tracker Pro or NeoFast Calc have ads?

Neither Preterm Growth Tracker Pro nor NeoFast Calc shows ads.

### Which is updated more often, Preterm Growth Tracker Pro or NeoFast Calc?

Preterm Growth Tracker Pro ships an update every 2 months, and NeoFast Calc fortnightly. Most recently, Preterm Growth Tracker Pro was updated on October 24, 2026 and NeoFast Calc on October 25, 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.*