Sketchar vs TernaryClock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sketchar
Learn to draw with augmented reality and AI-powered lessons. This app offers a comprehensive drawing tool, community contests, and personalized learning plans to enhance your artistic skills. Practice art to relieve stress and impress others with your creations.
- Augmented Reality drawing guidance
- AI-powered personalized learning plans
- 550+ drawing lessons
- Comprehensive drawing toolset
- Community contests and collaboration
- Stress relief through art practice
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Sketchar is for you if you want to improve your drawing skills, express yourself through art, impress friends and family with stunning artwork, collaborate with peers, relieve stress, or become a Pro. We have merged AR and AI together to speed up your learning experience and make it more entertaining. Here are the unique features that can only be found on the Sketchar app: 1.COURSES 550+ drawing lessons based on characters you love. You can start with a beginner set or delve deeper into a specific topic to improve your artistic skills, for example, in creating portraits or anime. 2. PERSONALIZED PLAN Based on AI to speed up your creative growth 3. DRAWING TOOL Powerful toolset to create stunning art in minutes. 4.CONTESTS Join the community to collaborate with peers. 5. AUGMENTED REALITY for drawing We invented that in 2012. Through your smartphone camera, you can see an AR sketch on the surface in front of you. Just take a pencil and follow the virtual lines on the paper step-by-step. This function is also employed by professional artists to scale sketches onto surfaces like walls. Use carefully and follow the video guide. and many other features. Btw, practicing art helps relieve stress. Download Sketchar now and learn to draw like never before. --- In-app purchases: Sketchar offers four paid auto-renewable subscription options that give you unlimited access to the app's premium content and features. 1-Week Subscription - $7.99 / Week 1 -Month Subscription – $14.99 / Month 1-Year Subscription with 3-Day Trial – $69.99 / Year 1-Year Special Offer Subscription – $34.99 / Year Prices may vary across countries. Prices are equal to the value that Application Store Matrix determines as the equivalent of the subscription price in USD. We are always interested in your opinion, so please email us at hi@sketchar.io.
TernaryClock
This app displays time using a balanced ternary system, dividing the day into 27 hours, each with 27 minutes and 27 seconds. It utilizes 'trits' with three values to represent time, offering a unique perspective on temporal measurement.
- Balanced ternary time display
- 27-hour day division
- Ternary digits ('trits')
- Unique time representation
- Visualizes 'extended present'
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This is a balanced ternary clock. It divides the day into 27 hours. Each hour is divided into 27 minutes, which are in turn divided into 27 seconds. This means that the ternary hour is a bit shorter than a standard hour, while the ternary minute is about twice as long as a standard minute. The ternary second lasts for about 4.4 standard seconds. This is quite close to what psychologists call the ‘extended present’, the duration of time we experience as ‘now’. The display is made out of ‘trits’, ternary digits that can each have 3 values. The lowest value is ‘\’, the center value is ‘|’ and the highest value is ‘/’. You can think of these as representing 0, 1, and 2, but there are other (and perhaps more fitting) ways of thinking about them as well, such as ‘−1, 0, +1’, ‘down, center, up’ or ‘left, middle, right’. Unbalanced number systems, like the standard decimal system or the binary system that computers use, do not have a center value. Their most basic ingredients are 0 and 1, and negative numbers need a special sign. In balanced ternary, this is different. You can think of it like using a compass: North and South are opposite directions, but neither of them is more fundamental than the other. In balanced ternary, you can use a single digit to denote the North Pole, the South Pole or the equator (the balance point). As you add more digits, you can describe your North–South position with increasing accuracy. This way of counting is very well suited for keeping track of things that rotate, like the passage of the day (which tracks the rotation of the Earth around its axis). In this clock, the day is divided into 19683 equal steps. At noon, all the digits are centered at ‘|’. At midnight, the display flips over from its highest value, ‘///·///·///’ to its lowest value ‘\\\·\\\·\\\’ and the next day begins. Interestingly, the exact opposite of noon is not a ‘tick’ of the clock but rather the moment halfway between the highest and lowest value. Midnight is a boundary that the clock approaches and then passes over but never quite lands on. This is a fundamental property of any balanced number system: there is only one precisely defined center, and on the opposite end of that is ‘infinity’, a value that cannot be expressed precisely as a number.
Screenshots
Verdict
The clearest difference is review sentiment: TernaryClock at 100% against Sketchar's 33%. TernaryClock also leads on rating (5.0 vs 4.2) and in-app purchases (none vs 15). Sketchar's advantage is ratings volume (9.9K vs 2) and chart position (#114 vs unranked). On price, ads, device support and iOS requirement 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
Both are free to download. Sketchar sells 14 in-app purchases, starting at $3.99 per 7 days. TernaryClock asks for nothing beyond the download.
TernaryClock holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Sketchar has 9.9K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 33% of Sketchar's written reviews are positive against 100% of TernaryClock's.
| Parameter | Sketchar | TernaryClock |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (9.9K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 33.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 9.9K — better | 2 |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #114 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 227 MB | 1 MB |
| Age rating | 12+ | 4+ |
| Developer | SketchAR | Chiel Zwinkels |
Customer experience
Sketchar
TernaryClock
Bugs and requests
Sketchar
Reported bugs
4 issues- AR tracking frequently loses paper
- App crashes and resets progress
- Ads disrupt drawing and cause loss of work
- Brightness/lighting issues affect performance
Requested features
5 requests- Add more free drawing lessons and content
- Improve AR tracking and stability
- Allow drawing without full page detection
- Add more drawing tools and brushes for free users
- Improve organization and navigation of lessons
TernaryClock
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Sketchar
- 1 Week$3.997 Days
- 1 Week$7.997 Days
- Sketchar PRO$10.991 Month
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- 1 month$17.991 Month
- 1 Year$29.991 Year
- 1 Year$34.991 Year
- SketchAR PRO$39.993 Months
- 1 Year$42.991 Year
- 1 Year1 Year trial$44.991 Year
- 1 Year3 Days trial$69.991 Year
- SketchAR PRO$69.991 Year
- Sketchar: Learn to Draw7 Days trial$69.991 Year
- 1 Year3 Days trial$79.991 Year
- Lifetime$149.99
TernaryClock
No in-app purchases









