# Sinus ID vs Kinesiology Plus

The clearest difference is price: Kinesiology Plus at Free against Sinus ID's $4.99. Kinesiology Plus also leads on update cadence (every 2 months vs every 40 months). Sinus ID's advantage is iOS requirement (11.0 vs 15.2). On ads, in-app purchases and device support there is nothing between them.

Kinesiology Plus is free to download; Sinus ID costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sinus ID ships an update every 40 months, Kinesiology Plus every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Sinus ID | Kinesiology Plus |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[1.5 (2 ratings)](https://appshunter.io/ios/app/sinus-id/id704828936/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 47 MB | 71 MB |
| Requires iOS | **11.0** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Blue Tree Publishing, Inc.](https://appshunter.io/developer/496143325) | [PKP International Limited](https://appshunter.io/developer/1612734664) |

## What reviewers say

### Sinus ID

[App page](https://appshunter.io/ios/app/sinus-id/id704828936)

Explore detailed 3D models and animations of sinus anatomy. Identify structures, visualize fluid flow, and use the drawing tools to annotate and share your findings. Ideal for students, patients, and medical professionals.

**Highlights:** 3D sinus anatomy models, Interactive structure identification, Normal and abnormal fluid flow animations, Two-finger zoom and pan, Drawing whiteboard with text and eraser, Screenshot and share functionality

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

**In-app purchases:** none


### Kinesiology Plus

[App page](https://appshunter.io/ios/app/kinesiology-plus/id1614126666)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sinus ID free?

Sinus ID costs $4.99, with no in-app purchases.

### Is Kinesiology Plus free?

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

### Do Sinus ID or Kinesiology Plus have ads?

Neither Sinus ID nor Kinesiology Plus shows ads.

### Which is updated more often, Sinus ID or Kinesiology Plus?

Sinus ID ships an update every 40 months, and Kinesiology Plus every 2 months. Most recently, Sinus ID was updated on November 1, 2026 and Kinesiology Plus 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.*