Comparison

Ester Formation vs Chemical Elements Practice

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

Head to head
About

Ester Formation

Features
Read full description

Master the concept of ester formation with EduTech Era’s interactive and simplified learning app. Designed for students, teachers, and competitive exam aspirants, this app breaks down the esterification process through clear explanations, diagrams, animations, and step-by-step guidance. Learn how alcohols react with carboxylic acids, understand the role of catalysts, and explore real-life applications - all in an easy, visually engaging format. Whether you're preparing for school exams or revising organic chemistry basics, this app makes complex topics simple and memorable. Features: - Simple and beginner-friendly explanation of esterification - Visual diagrams and reaction mechanisms - Step-by-step breakdown of the formation process - Drawing tools and interactive features (if applicable) - Clean UI for smooth and distraction-free learning - Audio support (if included) for better understanding Perfect For: Students, teachers, CBSE/ICSE learners, NEET/JEE aspirants, and anyone wanting a clear understanding of organic chemistry reactions. Start learning the formation of esters the easy way - only with EduTech Era.

About

Chemical Elements Practice

Master the periodic table with an adaptive learning system. This app uses spaced repetition and two distinct study modes to build long-term memory of element symbols, names, and relationships. Track your progress with category tests and access a full element browser.

Highlights
  • Adaptive spaced repetition
  • Multiple Choice mode
  • Self-Assessment mode
  • All 118 elements included
  • Category tests
  • Full card browser
  • Customizable study settings
Features
Read full description

Learning the chemical elements is essential for understanding science. Whether for school, university, or personal interest, a structured system helps build reliable memory for symbols, names and relationships. This app provides a clear and sustainable learning experience designed to strengthen long-term knowledge more effectively than simple quizzes. At its core is an adaptive spaced repetition system that adjusts review intervals based on how well you remember each element. If you recall an item after a longer interval than expected, the next interval is extended. If you hesitate or forget, the interval decreases without resetting your progress. This ensures that your practice time focuses on what truly requires reinforcement. Two learning modes support different goals. Multiple Choice enables quick practice and helps establish recognition patterns. Self-Assessment encourages active recall: you attempt to retrieve the answer before rating whether you knew it, almost knew it, or did not know it. This process significantly improves long-term retention. The app includes all 118 chemical elements, organized into familiar groups: s-block (14), p-block (36), d-block (40) and f-block (28). You can freely select which categories to study and choose from several question directions, such as Symbol → Name, Name → Symbol, or prompts focused on groups or periods. You may adjust all settings at any time without losing progress. Category tests provide a clear overview of your knowledge. Each test presents all relevant elements once and awards a silver or gold medal depending on your score. This makes it easy to track progress over time. A full card browser is also available, allowing you to look up any element whenever needed.

Screenshots

Ester Formation4 screens
Chemical Elements Practice4 screens

Verdict

The call

The clearest difference is price: Chemical Elements Practice at Free against Ester Formation's $1.99. Chemical Elements Practice also leads on update cadence (monthly vs every 61 months). Ester Formation's advantage is in-app purchases (none vs 1). On 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

CostPrice · In-app purchases · Ads · Monetization

Chemical Elements Practice is free to download; Ester Formation costs $1.99 up front. Chemical Elements Practice sells 1 one-off in-app purchase. Ester Formation asks for nothing beyond the download.

UpkeepUpdate frequency

Ester Formation ships an update every 61 months, Chemical Elements Practice monthly. The most recent releases landed on May 14, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 6 level
Ester Formation versus Chemical Elements Practice: the parameters behind the verdict, then further details
ParameterEster FormationChemical Elements Practice
Price$1.99Free — better
Rating—4.8 (39 ratings) — better
Number of ratings—39 — better
Update frequencyEvery 61 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size223 MB30 MB
Age rating4+4+
DeveloperVIRTUAL FILAMENTS PRIVATE LIMITEDPhilipp Straub

In-app purchases

None

Ester Formation

No in-app purchases

1 purchases

Chemical Elements Practice

One-time1
  • Pro Version$3.99

Questions

Is Ester Formation free?
Ester Formation costs $1.99, with no in-app purchases.
Is Chemical Elements Practice free?
Chemical Elements Practice is free to download, with in-app purchases available.
Do Ester Formation or Chemical Elements Practice have ads?
Neither Ester Formation nor Chemical Elements Practice shows ads.
Which is updated more often, Ester Formation or Chemical Elements Practice?
Ester Formation ships an update every 61 months, and Chemical Elements Practice monthly. Most recently, Ester Formation was updated on May 14, 2026 and Chemical Elements Practice on October 24, 2026.

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