Comparison

Sinus ID vs KnowThySelf

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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!

About

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.

Highlights
  • 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
Features
Read full description

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

Sinus ID4 screens
KnowThySelf3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
Sinus ID versus KnowThySelf: the parameters behind the verdict, then further details
ParameterSinus IDKnowThySelf
Price$4.99Free — better
Rating1.5 (2 ratings)5.0 (5 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings25 — better
Update frequencyEvery 40 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better12.0
Further details — not scored
Size47 MB10 MB
Age rating4+4+
DeveloperBlue Tree Publishing, Inc.Fleetsmart, LLC

Customer experience

Sinus ID

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

KnowThySelf

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Sinus ID

No in-app purchases

None

KnowThySelf

No in-app purchases

Questions

Is Sinus ID free?
Sinus ID costs $4.99, with no in-app purchases.
Is KnowThySelf free?
KnowThySelf is free to download, with no in-app purchases.
Which has better reviews, Sinus ID or KnowThySelf?
KnowThySelf is rated higher. Sinus ID averages 1.5 out of 5 from 2 ratings, while KnowThySelf averages 5.0 from 5 ratings.
Do Sinus ID or KnowThySelf have ads?
Neither Sinus ID nor KnowThySelf shows ads.
Which is updated more often, Sinus ID or KnowThySelf?
Sinus ID ships an update every 40 months, and KnowThySelf every 2 months. Most recently, Sinus ID was updated on September 24, 2026 and KnowThySelf on September 17, 2026.

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