# Newborn Physique vs TBSS

The clearest difference is price: TBSS at Free against Newborn Physique's $0.99. TBSS also leads on iOS requirement (7.0 vs 17.0). Newborn Physique's advantage is update cadence (every 3 weeks vs every 13 months). On ads, in-app purchases and device support there is nothing between them.

TBSS is free to download; Newborn Physique costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Newborn Physique ships an update every 3 weeks, TBSS every 13 months. The most recent releases landed on September 21, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Newborn Physique | TBSS |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 13 months |
| Monetization | Paid | — |
| Size | 4 MB | 1 MB |
| Requires iOS | 17.0 | **7.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Twelve Axis](https://appshunter.io/developer/499162428) | [nuit software](https://appshunter.io/developer/491342775) |

## What reviewers say

### Newborn Physique

[App page](https://appshunter.io/ios/app/newborn-physique/id499162425)

This application helps healthcare professionals quickly assess a newborn's physical development based on weight, height, and head circumference relative to gestational age. It calculates z-scores and percentiles, and identifies infants considered Small for Gestational Age (SGA). The app utilizes data from The Journal of the Japan Pediatric Society for its assessments.

**Highlights:** Assess newborn physique, Calculate z-scores and percentiles, Identify SGA infants, Utilizes pediatric society data, Customizable display options

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

**In-app purchases:** none


### TBSS

[App page](https://appshunter.io/ios/app/tbss/id641017029)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Newborn Physique free?

Newborn Physique costs $0.99, with no in-app purchases.

### Is TBSS free?

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

### Do Newborn Physique or TBSS have ads?

Neither Newborn Physique nor TBSS shows ads.

### Which is updated more often, Newborn Physique or TBSS?

Newborn Physique ships an update every 3 weeks, and TBSS every 13 months. Most recently, Newborn Physique was updated on September 21, 2026 and TBSS on September 17, 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.*