Triatlas vs Perodic Table
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
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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.
Perodic Table
Explore elements with interactive 3D Bohr models and detailed information. This app offers smart search, trend analysis, and real-world applications, making chemistry engaging for students, teachers, and enthusiasts.
- Interactive 3D Bohr models
- Detailed element information
- Smart search and quick access
- Group and period trend analysis
- Real-world element applications
- User-friendly interface
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Unlock the world of chemistry with the most advanced 3D Periodic Table app! Whether you are a student, teacher, researcher, or science enthusiast, this app provides everything you need to explore the elements in an interactive and engaging way. Explore Elements Like Never Before 3D Bohr Models – Visualize atomic structures with interactive 3D animations. Detailed Element Information – View atomic number, mass, electron configuration, and more. Smart Search & Quick Access – Quickly find any element and bookmark favorites. Group & Period Trends – Discover periodic trends, properties, and real-world applications. Your Ultimate Chemistry Companion Perfect for Learning & Teaching – An essential tool for students and educators. Research & Exam Ready – Reliable and accurate educational content. Fast & User-Friendly – Smooth navigation with a simple and intuitive interface. Why Choose This App? Trusted and Reliable – Based on accurate scientific data. Engaging and Interactive – Makes learning chemistry enjoyable. No Distractions – A focused learning experience. Download now and start your journey into the fascinating world of chemistry!
Screenshots
Verdict
The clearest difference is price: Triatlas at Free against Perodic Table's $0.99. Triatlas also leads on ratings volume (15 vs 1) and iOS requirement (6.1 vs 12.0). Perodic Table's advantage is update cadence (every 3 days vs every 13 months) and rating (5.0 vs 4.8). On 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
Triatlas is free to download; Perodic Table costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Perodic Table holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Triatlas has 15 ratings behind it against 1, so its average is the more settled of the two.
Triatlas ships an update every 13 months, Perodic Table every 3 days. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.
| Parameter | Triatlas | Perodic Table |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.8 (15 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 15 — better | 1 |
| Update frequency | Every 13 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.1 — better | 12.0 |
| Further details — not scored | ||
| Size | 465 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | DDQ | PIXOPLAY IT SERVICES PRIVATE LIMITED |
In-app purchases
Triatlas
No in-app purchases
Perodic Table
No in-app purchases
Questions
Is Triatlas free?
Is Perodic Table free?
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