Comparison

Jottable Flash Cards vs Derivon

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

Head to head
About

Jottable Flash Cards

Create and study custom flashcards with advanced features like multiple memos per card, automatic flipping, and import/export options. Organize your study materials efficiently with this versatile educational tool.

Highlights
  • Customizable flashcards with multiple memos
  • Automatic card flipping
  • Import/export text files
  • Search and reorder cards
  • Hide cards by dragging
  • Supports Retina displays
Features
Read full description

This is a flash cards app, you can take a note with color marker other than main word. It also has the following functions. Automatic flipping, searching word, reordering cards, skipping cards with slider, importing and exporting text files. (There is an free version "Jottable Flash Cards Free". We recommend you to try it first. It has almost same functions.) ==Function which in only paid-for version== 1. Adjusts font size if it's too large to write all characters in a card. ==Principal Functions== 1. Uses animation for flipping cards. 2. Can have up to 3 memos on each card. 3. Can import or export text file using iTunes' "File Sharing". 4. Can have plural sheaves. 5. Can flip card automatically. 6. Can shuffle order of cards. 7. Can search keyword. 8. Can skip cards using slider. 9. Can hide cards by pressing and dragging card. 10. Supports both 3.5 and 4 inch Retina displays. 11. Can change card size on 4 inch display. ==To import or export text files== 1. Use iTunes' "File Sharing", if you want to import or export text files. 2. The importing file needs to be Tab separated text or Comma separated text with UTF8 encoding. The extension for Tab separated text is ".txt", for Comma separated text is ".csv". 3. If you want to import text file with line feed code, you need to separate cards using semicolon(;). 4. The exporting file is always Tab separated text with UTF8 encoding. ==To import or export text files using clip board == 1. You can import or export text files using clipboard. 2. The importing file needs to be Tab separated text with UTF8 encoding. 3. If you want to import text file with line feed code, you need to separate cards using semicolon(;). 4. The exporting file is always Tab separated text with UTF8 encoding.

About

Derivon

Master calculus concepts like derivatives and integrals through daily, intuitive practice. Earn rewards, collect planets, and build streaks as you progress through challenges. Designed for quick, effective learning sessions.

Highlights
  • Daily calculus problem practice
  • Earn Star Sand rewards
  • Collect planets in Gallery
  • Build and maintain daily streaks
  • Rank-Up Challenges
  • Shooting mode for breaks
Read full description

Master calculus through daily practice. Solve derivatives and integrals by intuition — no overthinking, just repetition. • Swipe through problems and build your skills • Earn Star Sand with every correct answer • Spin the Gacha to collect planets in your Gallery • Build a daily streak — never break the chain • Take Rank-Up Challenges as you progress • Play Shooting mode for a quick break • Track your streak, level up, and earn rewards Whether you're preparing for AP Calculus, university exams, or just sharpening your math skills, Derivon makes practice feel like a space adventure. 3 minutes a day. That's all it takes. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Jottable Flash Cards4 screens
Derivon4 screens

Verdict

The call

The clearest difference is review sentiment: Jottable Flash Cards at 55% against Derivon's 0%. Jottable Flash Cards also leads on in-app purchases (none vs 3) and ads (none vs shown). Derivon's advantage is price (Free vs $0.99) and update cadence (every 2 days vs every 5 months). On 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

CostPrice · In-app purchases · Ads · Monetization

Derivon is free to download; Jottable Flash Cards costs $0.99 up front. Derivon sells 3 one-off in-app purchases. Jottable Flash Cards asks for nothing beyond the download.

UpkeepUpdate frequency

Jottable Flash Cards ships an update every 5 months, Derivon every 2 days. The most recent releases landed on August 15, 2026 and September 19, 2026 respectively.

Scorecard7 real differences · 3 level
Jottable Flash Cards versus Derivon: the parameters behind the verdict, then further details
ParameterJottable Flash CardsDerivon
Price$0.99Free — better
Rating—3.0 (1 ratings) — better
Positive reviews55.0% of reviews — better0.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 5 monthsEvery 2 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhoneiPhone
Requires iOS16.0 — better26.0
Further details — not scored
Size4 MB130 MB
Age rating4+4+
DeveloperSatoshi HoriguchiRYOMA MIZUTANI

Customer experience

Jottable Flash Cards

Written reviews20 reviews
Positive55.0%
Neutral20.0%
Negative25.0%

Derivon

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

None

Jottable Flash Cards

No in-app purchases

3 purchases

Derivon

One-time3
  • 5 Star Fragments$0.99
  • 12 Star Fragments$1.99
  • 32 Star Fragments$3.99

Questions

Is Jottable Flash Cards free?
Jottable Flash Cards costs $0.99, with no in-app purchases.
Is Derivon free?
Derivon is free to download, with in-app purchases available.
Do Jottable Flash Cards or Derivon have ads?
Derivon shows ads; Jottable Flash Cards does not.
Which is updated more often, Jottable Flash Cards or Derivon?
Jottable Flash Cards ships an update every 5 months, and Derivon every 2 days. Most recently, Jottable Flash Cards was updated on August 15, 2026 and Derivon on September 19, 2026.

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