Conversions vs Functional Groups
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Conversions
Practice unit conversions with this adaptive educational app. It offers a variety of exercises covering length, mass, area, temperature, and currency conversions using metric and imperial systems.
- Adaptive learning exercises
- Length, mass, and area conversions
- Temperature conversion practice
- Currency conversion exercises
- Metric and imperial unit support
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Conversion is an adaptive educational app for unit conversion practice. The app contains various types of exercises for practice of the following units: - length (metric, imperial, combined) - mass (metric, imperial, combined) - area (metric, imperial, combined) - temperature (celsius / fahrenheit) - currency (EUR, USD and CZK)
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.
- 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
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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
Verdict
The clearest difference is in-app purchases: Conversions at none against Functional Groups's 1. Conversions also leads on update cadence (weekly vs every 4 months) and iOS requirement (8.0 vs 15.0). On price, review sentiment, ads 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
Both are free to download. Functional Groups sells 1 one-off in-app purchase. Conversions asks for nothing beyond the download.
Conversions ships an update weekly, Functional Groups every 4 months. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.
| Parameter | Conversions | Functional Groups |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (21 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | — | 21 — better |
| Update frequency | Weekly — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 23 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Petr Zvonicek | Clarity Applications |
Customer experience
Conversions
Functional Groups
In-app purchases
Conversions
No in-app purchases
Functional Groups
- Lifetime Access$9.99
Questions
Is Conversions free?
Is Functional Groups free?
Do Conversions or Functional Groups have ads?
Which is updated more often, Conversions or Functional Groups?
Other comparisons
