Comparison

Impari Citric vs Functional Groups

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

Head to head
About

Impari Citric

Features
Read full description

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

Functional Groups

Master organic chemistry functional groups through an engaging and interactive learning experience. Ideal for students in introductory or advanced courses, MCAT prep, and A-Level chemistry, this app covers dozens of essential groups with practice modes and progress tracking.

Highlights
  • 25+ basic and advanced functional groups
  • 300+ organic compounds
  • Multiple practice modes
  • Customizable study groups
  • Personalized review
  • Reference table and definitions
  • Progress tracking with achievements
Features
Read full description

Ready to ace organic chemistry? Learn the functional groups you need to know - all in an engaging and interactive format. The app is ideal for introductory or advanced organic chemistry classes, MCAT prep, A-Level chemistry, and more. You’ll quickly become familiar with alcohols, esters, amides, amines, and dozens of other important functional groups. The app features: • 25+ basic and advanced functional groups • 300+ organic compounds • Multiple practice modes • Customize which groups to study • Personalized review • Reference table and definitions • Achievements to track your progress Along the way, you’ll learn interesting facts about pharmaceuticals, biomolecules, dangerous compounds, unique molecular structures, and more. With the Functional Groups app, learning organic chemistry is easy, straightforward, and, dare we say… fun? Give it a try and let us know what you think!

Screenshots

Impari Citric4 screens
Functional Groups4 screens

Verdict

The call

The clearest difference is price: Functional Groups at Free against Impari Citric's $1.99. Functional Groups also leads on device support (3 vs 1). Impari Citric's advantage is in-app purchases (none vs 1) and update cadence (every 10 days vs every 4 months). On ads 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

Functional Groups is free to download; Impari Citric costs $1.99 up front. Functional Groups sells 1 one-off in-app purchase. Impari Citric asks for nothing beyond the download.

UpkeepUpdate frequency

Impari Citric ships an update every 10 days, Functional Groups every 4 months. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

Scorecard4 real differences · 6 level
Impari Citric versus Functional Groups: the parameters behind the verdict, then further details
ParameterImpari CitricFunctional Groups
Price$1.99Free — better
Rating—4.9 (21 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—21 — better
Update frequencyEvery 10 days — betterEvery 4 months
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size4 MB17 MB
Age rating4+4+
DeveloperDavid OrgemanClarity Applications

In-app purchases

None

Impari Citric

No in-app purchases

1 purchases

Functional Groups

One-time1
  • Lifetime Access$9.99

Questions

Is Impari Citric free?
Impari Citric costs $1.99, with no in-app purchases.
Is Functional Groups free?
Functional Groups is free to download, with in-app purchases available.
Do Impari Citric or Functional Groups have ads?
Neither Impari Citric nor Functional Groups shows ads.
Which is updated more often, Impari Citric or Functional Groups?
Impari Citric ships an update every 10 days, and Functional Groups every 4 months. Most recently, Impari Citric was updated on October 2, 2026 and Functional Groups on October 11, 2026.

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