Comparison

Impari Citric vs pHCalculation

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

Head to head
About

Impari Citric

Features
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Memorize details on the citric acid cycle (AKA, Krebs or TCA) for biology and biochemistry with this highly customizable quizzing application. Adjust it to suit your particular learning requirements. Draw questions from one or more of many choices, including: * participating reaction molecules * full chemical name * abbreviation * chemical skeletal formula * chemical structural formula * reaction catalysts * full chemical name * abbreviation * citric acid cycle reactions * reactants * catalysts * products Select answers from one or more of many choices, including all of the question options as well as: * enzyme class of the catalysts * type of the reactions * how reactions effect the energy availability * chemical co-reactants involved in the reactions * chemical by-products produced by the reactions Configure the number of questions and how they are selected: * user set number of random questions (allowing repeats) * user set number of unique, non-repeating questions * ask ALL questions currently matching the selection filters Configure how missed answers are handled with multiple options: * just continue with quiz * repeat missed questions one time * keep repeating missed questions until answered correctly Utilize filters to further limit the questions included and target your individual learning goals. Quiz includes both single choice questions and select-all-that-apply questions. Save settings that meet your needs to be used automatically with future use of the application - or reset to the system defaults at will. All of this allows you to configure the app to help you quickly learn the citric cycle reactions including the reactants, catalysts, products, co-reactants, and by-products. It is an ideal study aid for biology and biochemistry students who need to memorize various portions of this information.

About

pHCalculation

Features
Read full description

Introducing a Stunning New Interface! We've completely redesigned the app for a more intuitive and engaging experience. Our sleek, modern UI makes navigating through calculations effortless, allowing you to focus on what truly matters: understanding chemistry. pHCalculation is more than just a calculator; it's your personal chemistry tutor. Perfect for high school and college students who want to ace their exams and build unshakable confidence in acid-base chemistry. Key Features: - Step-by-Step Solutions: Don't just get the answer. See the full, detailed calculation for every problem, helping you truly understand the "why" behind the result. - Modern & Intuitive UI: Enjoy a beautiful, user-friendly design that makes learning chemistry a pleasure. - Comprehensive Learning Tool: Master everything from strong and weak acids/bases to salt solutions and complex buffer systems. - Advanced Reverse Calculations: Easily find the acid or base dissociation constants (Ka/Kb) to deepen your understanding of chemical principles. - Academically Accurate: Systematically tested to ensure every calculation is precise, helping you solve problems quickly and correctly. Download pHCalculation today and transform complex chemistry concepts into an accessible, interactive learning experience!

Screenshots

Impari Citric4 screens
pHCalculation4 screens

Verdict

The call

The clearest difference is price: pHCalculation at Free against Impari Citric's $1.99. pHCalculation also leads on update cadence (every 5 days vs every 10 days). Impari Citric's advantage is in-app purchases (none vs 5) and iOS requirement (16.6 vs 18.6). On ads 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

pHCalculation is free to download; Impari Citric costs $1.99 up front. pHCalculation sells 5 one-off in-app purchases. Impari Citric asks for nothing beyond the download.

UpkeepUpdate frequency

Impari Citric ships an update every 10 days, pHCalculation every 5 days. The most recent releases landed on October 2, 2026 and October 9, 2026 respectively.

Scorecard4 real differences ยท 2 level
Impari Citric versus pHCalculation: the parameters behind the verdict, then further details
ParameterImpari CitricpHCalculation
Price$1.99Free โ€” better
Update frequencyEvery 10 daysEvery 5 days โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhoneiPhone, iPad โ€” better
Requires iOS16.6 โ€” better18.6
Further details โ€” not scored
Size4 MB2 MB
Age rating4+4+
DeveloperDavid OrgemanJatuphol Jaturapat

In-app purchases

None

Impari Citric

No in-app purchases

5 purchases

pHCalculation

One-time5
  • Show solution$0.99
  • Buffer Calculator$0.99
  • Salt pH calculator$0.99
Show 2 more
  • Reverse pH calculator$0.99
  • Unlock All Features.$1.99

Questions

Is Impari Citric free?
Impari Citric costs $1.99, with no in-app purchases.
Is pHCalculation free?
pHCalculation is free to download, with in-app purchases available.
Do Impari Citric or pHCalculation have ads?
Neither Impari Citric nor pHCalculation shows ads.
Which is updated more often, Impari Citric or pHCalculation?
Impari Citric ships an update every 10 days, and pHCalculation every 5 days. Most recently, Impari Citric was updated on October 2, 2026 and pHCalculation on October 9, 2026.

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