# Preterm Growth Tracker vs NeoFast Calc

The clearest difference is review sentiment: NeoFast Calc at 80% against Preterm Growth Tracker's 50%. NeoFast Calc also leads on update cadence (fortnightly vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Preterm Growth Tracker sells 2 one-off in-app purchases and NeoFast Calc sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Preterm Growth Tracker ships an update every 2 months, NeoFast Calc fortnightly. The most recent releases landed on October 13, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Preterm Growth Tracker | NeoFast Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/preterm-growth-tracker/id950728483/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 2 MB | 195 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | +4 | 17+ |
| Developer | [Quatrian Inc.](https://appshunter.io/developer/404828595) | [Ponto Direto Tech Ltda](https://appshunter.io/developer/1789425714) |

## What reviewers say

### Preterm Growth Tracker

[App page](https://appshunter.io/ios/app/preterm-growth-tracker/id950728483)

This app helps parents and medical professionals monitor the growth of premature babies. It utilizes the 2025 Fenton Third-Generation Growth Charts and allows for secure sharing of progress. Options are available for tracking one or multiple children.

**Highlights:** Track preterm infants (20-37 weeks gestation), Measurements up to 67 weeks, Family version for two children (in-app purchase), Professional version for unlimited children (in-app purchase), Print charts to iOS printers, Email charts and data with password protection, Email importable child profiles

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Family version | $6.99 | one-time |
| Professional version | $35.99 | one-time |


### 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 free?

Preterm Growth Tracker is free to download, with in-app purchases available.

### Is NeoFast Calc free?

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

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

Neither Preterm Growth Tracker nor NeoFast Calc shows ads.

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

Preterm Growth Tracker ships an update every 2 months, and NeoFast Calc fortnightly. Most recently, Preterm Growth Tracker was updated on October 13, 2026 and NeoFast Calc on October 28, 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.*