Triatlas vs Logic Learner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Triatlas
Explore the cosmos with a comprehensive star chart featuring millions of celestial objects, including stars, galaxies, and nebulae. Customize your viewing experience with night vision, orientation controls, and intuitive navigation.
- Detailed star catalog (up to mag 12.6)
- Extensive galaxy and nebula data
- Support for clusters and double stars
- Flexible night vision mode
- Adjustable orientation controls (flip/mirror)
- Chart-to-chart navigation
Read full descriptionHide full description
The Triatlas app contains the most detailed, speedy star chart available for smartphones and tablets! - Stars up to mag 12.6 - Galaxies up to mag 15.5 (PGC). 37000 in total! - 1200 planetary nebulae - 1800 open clusters, all globulars - Others: SH-2, RCW,LDN / Barnard - Double stars whose main star is brighter than 11th magnitude (35,000 double stars) - Variable stars whose maximum reaches the 12.5 magnitude (29,000 variable stars) PLUS: - Flexible Night vision mode - Landscape-portrait mode - Flip and mirror (Supporting telescope orientation) - Chart-to-chart navigation using the black corners. Based on the charts made by Jose Torres. Used with permission.
Logic Learner
This application is designed to help users understand and learn about the principles of logic. It provides educational content to build a foundational understanding of logical concepts.
- Learn logic principles
- Educational content
- Foundational understanding
- Logic concepts
Read full descriptionHide full description
Logic Learner is an app to help you learn about logic.
Screenshots
Verdict
The clearest difference is update cadence: Logic Learner at every 2 days against Triatlas's every 13 months. Triatlas's advantage is iOS requirement (6.1 vs 13.4). On price, review sentiment, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Triatlas ships an update every 13 months, Logic Learner every 2 days. The most recent releases landed on November 1, 2026 and October 18, 2026 respectively.
| Parameter | Triatlas | Logic Learner |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (15 ratings) — better | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 15 — better | — |
| Update frequency | Every 13 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 6.1 — better | 13.4 |
| Further details — not scored | ||
| Size | 465 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | DDQ | Ankit Kapoor |
Customer experience
Triatlas
Logic Learner
In-app purchases
Triatlas
No in-app purchases
Logic Learner
No in-app purchases
