Comparison

CSN Quiz vs Periodic Table

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

Head to head
About

CSN Quiz

Features
Read full description

El Consejo de Seguridad Nuclear plantea un divertido juego de preguntas y respuestas para que pongas a prueba tus conocimientos sobre la radiactividad, su estudio y sus posibles utilizaciones. Recorre a través de la Historia los principales hitos relacionados con la radiactividad y sus protagonistas. Conoce los beneficios que aporta el uso de la radiactividad para la sociedad. Aprende sobre los retos a los que nos enfrentamos y el control que el Consejo de Seguridad Nacional aplica como único organismo español con competencias en seguridad nuclear y protección radiológica. Avanza en el juego y acumula los diferentes logros para demostrar todo lo que has aprendido. Las preguntas del juego se encuentran divididas en tres categorías: - Elementos: incluye cuestiones sobre la tabla periódica y las propiedades de los diferentes elementos químicos. - Personas: las preguntas versan sobre los investigadores e investigadoras implicados en el estudio de la radiactividad y el desarrollo de la técnica y la tecnología para su explotación. - Radiación y sociedad: esta sección pone a examen tus nociones sobre los beneficios de la radiactividad para la población en diferentes campos. La aplicación ofrece la posibilidad de utilizar Realidad Aumentada durante el juego. Para ello, el Centro de Interpretación del CSN te proporciona un marcador de la tabla periódica. En caso de no disponer del marcador, puedes descargarlo desde la aplicación para imprimirlo o presentarlo en la pantalla de otro dispositivo.

About

Periodic Table

Features
Read full description

Explore the building blocks of matter with Periodic Table: a visual chemistry reference with all 118 elements, available offline after installation. START WITH THE CLASSIC TABLE Browse 18 groups and 7 periods, with separate lanthanide and actinide rows. Tap any element to open its card, or move and zoom the table to explore. SEE THE ESSENTIALS AT A GLANCE Large symbols, clear numbers and color-coded categories make element cards easy to scan. Explore atomic mass, protons and electrons, electron shells, electron configuration, electronegativity, density, melting and boiling points, and position in the table. UNDERSTAND VALENCE Compare typical valences with signed oxidation states and selected compound examples. Valence information covers 80 elements, with 125 examples and notes explaining the limits of the data. FIND WHAT YOU NEED Search by element name, symbol or atomic number. Filter by category or physical state and use the color legend to understand the table. DISCOVER THE STORIES Read concise information about discovery, names, uses and selected isotopes. Unknown or estimated properties are identified, and element cards include sources and notes. CHOOSE YOUR LANGUAGE Use English, Spanish, Arabic, French, Hindi, Thai or Russian. English is the default; your language choice is saved on your device. Arabic supports right-to-left reading while chemical formulas keep their standard direction. MAKE IT COMFORTABLE Switch between light and dark themes. The layout adapts to iPhone and iPad in portrait or landscape. No account, ads or in-app purchases. The app includes its reference data, translations and fonts, so its core features work without an internet connection. Designed for learning and quick reference. Isotopes and valences are selected examples, not exhaustive catalogs.

Screenshots

CSN Quiz2 screens
Periodic Table4 screens

Verdict

The call

The clearest difference is update cadence: Periodic Table at every 4 days against CSN Quiz's every 12 months. CSN Quiz's advantage is iOS requirement (9.0 vs 15.0). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CSN Quiz ships an update every 12 months, Periodic Table every 4 days. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.

Scorecard2 real differences · 4 level
CSN Quiz versus Periodic Table: the parameters behind the verdict, then further details
ParameterCSN QuizPeriodic Table
PriceFreeFree
Update frequencyEvery 12 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size162 MB21 MB
Age rating4+4+
DeveloperCONSEJO DE SEGURIDAD NUCLEAROleg Korunov

In-app purchases

None

CSN Quiz

No in-app purchases

None

Periodic Table

No in-app purchases

Questions

Is CSN Quiz free?
CSN Quiz is free to download, with no in-app purchases.
Is Periodic Table free?
Periodic Table is free to download, with no in-app purchases.
Do CSN Quiz or Periodic Table have ads?
Neither CSN Quiz nor Periodic Table shows ads.
Which is updated more often, CSN Quiz or Periodic Table?
CSN Quiz ships an update every 12 months, and Periodic Table every 4 days. Most recently, CSN Quiz was updated on October 9, 2026 and Periodic Table on October 4, 2026.

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