OCTO Flashcards vs Functional Groups
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OCTO Flashcards
This app offers a digital solution for studying with flashcards, allowing users to write and draw using an Apple Pencil. It provides organizational tools like folders and color-coding, along with study features to track mastered cards and facilitate quick review sessions. Go paperless and create unlimited study materials without cost.
- Apple Pencil support for writing and drawing
- Cloud-backed database for card storage
- Folder organization and color-coding
- Mastered card tracking
- Quick study sessions with swipe/tap gestures
- Unlimited card creation
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Let OCTO solve the tradeoff between modern technology and traditional flashcard studying! Utilize your Apple Pencil to write or draw anything you need to memorize- no more constraints from text-only flashcards. STAY ORGANIZED * OCTO's cloud-backed database ensures you never lose your flashcards * Keep all your study materials in one place * Group together flashcard sets into folders * Color code your flashcard sets and folders STUDY EFFECTIVELY * Memorize as you create your flashcards by writing out your material * Keep track of cards you have mastered * Choose to study only mastered cards for a challenge or all flashcards for a refresh * Have quick study sessions with our simple swipe or tap gestures GO PAPERLESS * Create unlimited cards without worrying about the costs * Reduce paper waste and your carbon footprint
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 review sentiment: Functional Groups at 100% against OCTO Flashcards's 54%. Functional Groups also leads on rating (4.9 vs 2.6) and ads (none vs shown). OCTO Flashcards's advantage is in-app purchases (none vs 1) and update cadence (every 11 days vs every 4 months). On price, ratings volume 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
Both are free to download. Functional Groups sells 1 one-off in-app purchase. OCTO Flashcards asks for nothing beyond the download.
Functional Groups holds the better App Store score, 4.9 against 2.6. Both are backed by a comparable volume of ratings — 16 and 21 respectively. Written reviews point the same way: 54% of OCTO Flashcards's written reviews are positive against 100% of Functional Groups's.
OCTO Flashcards ships an update every 11 days, Functional Groups every 4 months. The most recent releases landed on August 20, 2026 and September 13, 2026 respectively.
| Parameter | OCTO Flashcards | Functional Groups |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (16 ratings) | 4.9 (21 ratings) — better |
| Positive reviews | 53.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 16 | 21 — better |
| Update frequency | Every 11 days — better | Every 4 months |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Elaine Kodama | Clarity Applications |
Customer experience
OCTO Flashcards
Functional Groups
In-app purchases
OCTO Flashcards
No in-app purchases
Functional Groups
- Lifetime Access$9.99
Questions
Is OCTO Flashcards free?
Is Functional Groups free?
Which has better reviews, OCTO Flashcards or Functional Groups?
Do OCTO Flashcards or Functional Groups have ads?
Which is updated more often, OCTO Flashcards or Functional Groups?
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