Comparison

Periodic Table vs Structural Formulas Study

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

Head to head
About

Periodic Table

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Periodica brings the periodic table to life, making chemistry accessible, intuitive, and engaging for students, educators, and enthusiasts alike. Built with simplicity and user privacy in mind, Periodica provides detailed, accurate information about every element, interactive tools, and powerful search capabilities โ€” all in a beautifully designed, ad-free environment. Periodica Features: Advanced Chemistry Calculator: โ€ข Master chemistry calculations with our advanced calculator. Get detailed step-by-step explanations for: โ€ข Equation Balancing: Easily balance chemical equations with detailed guidance at every step. โ€ข Molar Mass Calculations: Clearly see each step involved in determining molar masses. Detailed Element Information: โ€ข Access detailed element profiles with interactive Bohr diagrams, atomic properties, electron configurations, isotopes, compounds, and more โ€” all neatly organized. Interactive Exploration: โ€ข Effortlessly navigate and visualize element relationships and chemical properties. Personalized Experience: โ€ข Save favorites and customize your learning journey. Privacy First: โ€ข Periodica respects your privacy โ€” no accounts, no tracking, no ads. Your data never leaves your device. Stay Connected: Website: https://www.periodica.io Instagram: @periodica.io Threads: @periodica.io TikTok: @periodica.io X: @PeriodicaApp Policies: Terms of Service: https://periodica.io/policies/terms Privacy Policy: https://periodica.io/policies/privacy Contact & Feedback: For support, suggestions, or feedback, reach us at support@periodica.io. Explore chemistry your way โ€” private, powerful, and distraction-free with Periodica.

About

Structural Formulas Study

Features
Read full description

Learn chemistry the easy way. Explore, search, and filter over 100 molecular structures with clear diagrams and essential data โ€” perfect for exam prep or daily study. Features - 100+ molecules - Structural formulas with detailed properties (mass, density, pKa, etc.) - Quick search & category filters - Offline access โ€“ no internet required - Ideal for high school & college chemistry students Make chemistry study simple, efficient, and always at your fingertips!

Screenshots

Periodic Table4 screens
Structural Formulas Study4 screens

Verdict

The call

The clearest difference is update cadence: Periodic Table at every 3 days against Structural Formulas Study's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

Periodic Table ships an update every 3 days, Structural Formulas Study every 5 weeks. The most recent releases landed on September 11, 2026 and September 20, 2026 respectively.

Scorecard1 real difference ยท 5 level
Periodic Table versus Structural Formulas Study: the parameters behind the verdict, then further details
ParameterPeriodic TableStructural Formulas Study
PriceFreeFree
Update frequencyEvery 3 days โ€” betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.0 โ€” better18.4
Further details โ€” not scored
Size23 MB5 MB
Age rating4+4+
DeveloperHAYDEN D'ERRICOJun Yamabe

In-app purchases

None

Periodic Table

No in-app purchases

None

Structural Formulas Study

No in-app purchases

Questions

Is Periodic Table free?
Periodic Table is free to download, with no in-app purchases.
Is Structural Formulas Study free?
Structural Formulas Study is free to download, with no in-app purchases.
Do Periodic Table or Structural Formulas Study have ads?
Neither Periodic Table nor Structural Formulas Study shows ads.
Which is updated more often, Periodic Table or Structural Formulas Study?
Periodic Table ships an update every 3 days, and Structural Formulas Study every 5 weeks. Most recently, Periodic Table was updated on September 11, 2026 and Structural Formulas Study on September 20, 2026.

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