Sinus ID vs KnowThySelf
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sinus ID
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.
- 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
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The Sinus ID app helps students and patients learn and professionals teach sinus anatomy. Clear full color images and animations show the sinuses from the front, side and top views. Side view includes the turbinates, front view includes deviated septum, side and front views include polyp views. Front and side animations include normal and abnormal liquid flow. Disclaimer: seek a doctor’s advice in addition to using this app and before making any medical decisions. • Structure ID for the front, side and top sinuses and side turbinates. As each part is touched, the part highlights and the part name and description text changes. Description text shows or hides on demand. - Front Sinuse- 14 parts.. - Side Sinus with turbinates- 54 parts, includes mouth and throat structure ID. - Top Sinus - 4 parts. • Animations for the front and side views of sinus normal and abnormal liquid flow, side view of turbinate normal and abnormal liquid flow. • Two finger zoom and pan of all animations and Structure ID pages. • Drawing Whiteboard feature: - Drawing: freeform lines in red, blue, green or black hue. - Draw and place text directly on active animation and video. - Text: 36pt, auto wrap, non-movable in red, blue, green or black hue. - Eraser: touch and rub lines and text on whiteboard to erase. - Trash: one tap deletes all whiteboard lines and text. - Screenshot whiteboard direct to Photos App for easy email and printing. • iOS 6.0+ required, designed for iPad and iPhone. The Sinus ID app makes learning sinus structure identification easy. See example screen shots below. Get the app today!
KnowThySelf
Build self-awareness and improve relationships with this app. It offers assessments to create a personal development profile including traits, values, skills, and goals. Share and discuss profiles with others for growth in various relationships.
- Personal development profile creation
- Assessments for traits, values, skills, and goals
- Profile sharing for relationship building
- Fosters self-awareness
- Supports healthy relationships
- Customization options available
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KnowThyself helps individuals grow in self-awareness of themselves and others. Through the App’s assessments and self-selection tools, a user creates a personal development profile, which includes personality traits, values, interests, skills, and goals. Users have the option to share and discuss profiles with others to foster personal growth and healthy relationships. Examples of such relationships include marriage, mentorship, coaching, work teams, among others. KnowThyself developer FleetSmart offers: 1. FREE use of the KnowThySelf APP for self-awareness and relationship building. 2. Options to customize the KnowThySelf App to fit specific operation needs (fee-based) 3. Opportunity to affordably build web and phone applications to support and scale operations (fee-based)
Screenshots
Verdict
The clearest difference is review sentiment: KnowThySelf at 100% against Sinus ID's 0%. KnowThySelf also leads on price (Free vs $4.99) and rating (5.0 vs 1.5). On ratings volume, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
KnowThySelf is free to download; Sinus ID costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
KnowThySelf holds the better App Store score, 5.0 against 1.5. Both are backed by a comparable volume of ratings — 2 and 5 respectively. Written reviews point the same way: 0% of Sinus ID's written reviews are positive against 100% of KnowThySelf's.
Sinus ID ships an update every 40 months, KnowThySelf every 2 months. The most recent releases landed on September 24, 2026 and September 17, 2026 respectively.
| Parameter | Sinus ID | KnowThySelf |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 1.5 (2 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 5 — better |
| Update frequency | Every 40 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 47 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Blue Tree Publishing, Inc. | Fleetsmart, LLC |
Customer experience
Sinus ID
KnowThySelf
In-app purchases
Sinus ID
No in-app purchases
KnowThySelf
No in-app purchases









