RecallNote vs Ditdah CW
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RecallNote
This app helps you record, review, and retain learned material for both quick exam preparation and long-term memory. It features a memory rate calculation, achievement score tracking, and an exam prep mode for efficient review sessions. Customize your study experience with subject management and theme options.
- Add and manage review items with notes and images
- Subject registration and management
- Memory rate and achievement score tracking
- Automatic next review date calculation
- Exam prep mode for quick review
- Customizable background themes
- PDF annotation and Apple Pencil support
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Review Cards · Memorization · Exam Prep · PDF Notes — All in One. Study smarter with RecallNote and remember longer. RecallNote is a study app, review app, and note-taking app designed to help you record what you learn, review it repeatedly, and prepare for exams. Spaced Repetition Based on the Forgetting Curve Review what you’ve learned before you forget it and build stronger long-term memory through spaced repetition. Track your memory retention, review count, and achievement as you continue studying. Review Cards · Memorization Cards Create Review Cards with typed text or handwriting. Use them for vocabulary study and memorization, and save quickly without entering a subject or title. Exam Prep Mode Quickly review important material right before an exam. You can also share Exam Prep Cards with friends. PDF Notes · Handwriting · Memos Study with PDFs and add handwritten or typed notes. Just capture and save to instantly create Review Cards and Exam Prep Cards. Review Notifications Stay on track with reminders for your scheduled reviews. iPhone · iPad · Mac Sync Sync your Review Cards and PDF notes across iPhone, iPad, and Mac and continue studying on any device. Available in 50+ Languages (English, Spanish, French, German, Chinese, Japanese, Korean, Portuguese, Italian, Hindi, Arabic, Urdu, Bengali, Russian, and more) Use RecallNote for certification exams, civil service exams, school tests, language learning, vocabulary study, and everyday learning. More than just a notes or handwriting app, RecallNote brings study, review, memorization, spaced repetition, and exam prep together in one place. RecallNote — Record. Review. Remember. ※ For detailed instructions and the latest updates, see TIP in the in-app manual.
Ditdah CW
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Learn Morse code the way real operators do — by ear, not by chart. Ditdah CW uses the proven Koch method to train your ear from day one. No subscriptions. No ads. No paywalls. One purchase, everything included. - LEARN - Koch Method lessons — 13 structured lessons, 2 characters at a time - Farnsworth Mode — wider spacing to build ear recognition faster - Proven progression — advance only when you hit 90% accuracy PRACTICE - Listen & Decode — letters, words, and sentences at your chosen WPM - Send Practice — tap the screen like a real CW key, short for dit, long for dah - Custom Text — practice your callsign, CQ calls, or any text you choose - Adjustable speed — 5 to 30 WPM, dial it to your level TEST - HAM Exam Simulation — 40 questions, mixed characters, 13 WPM - Letter, Number, and Q-Code tests - Instant results with missed character breakdown REFERENCE - Full alphabet, numbers, and essential Q-codes — all in one place - Tap any character to hear it - Works completely offline - BUILT FOR SERIOUS OPERATORS Ditdah is designed for HAM radio candidates and experienced operators who want a no-nonsense, professional training tool. Not a game. Not a flashcard app. A real CW trainer. CW tone frequency is adjustable (400–900 Hz). Streak tracking keeps your daily practice consistent. Statistics show your WPM growth and weakest characters over time. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: RecallNote at every 3 days against Ditdah CW's every 3 weeks. Ditdah CW's advantage is iOS requirement (16.6 vs 18). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
RecallNote ships an update every 3 days, Ditdah CW every 3 weeks. The most recent releases landed on October 1, 2026 and September 20, 2026 respectively.
| Parameter | RecallNote | Ditdah CW |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 18 | 16.6 — better |
| Further details — not scored | ||
| Size | 47 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | JAESIK YOUN | Mustafa Sucu |
In-app purchases
RecallNote
No in-app purchases
Ditdah CW
No in-app purchases
Questions
Is RecallNote free?
Is Ditdah CW free?
Do RecallNote or Ditdah CW have ads?
Which is updated more often, RecallNote or Ditdah CW?
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