Read Notes vs Calc Pass
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Read Notes
Enhance your musical abilities with interactive games focused on sight-reading, ear training, and chord recognition. Practice essential music theory concepts and improve your performance on any instrument with daily exercises and challenges.
- Sight reading practice with multiple clefs
- Ear training for notes, intervals, and chords
- Chord recognition and virtual keyboard
- 100-song library with challenges
- Progress tracking and leaderboards
- Multiple difficulty levels and practice modes
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Read sheet music one step at a time, on piano, guitar, bass guitar, ukulele, violin or drums. Choose an instrument from Home to see its quests and song library. KEEP YOUR PIANO PRACTICE Continue your piano Quests, Drills, ear training and chord practice. Start piano Quests in treble clef, bass clef or both. Your existing piano progress and purchases are preserved. CONNECT NOTATION WITH YOUR INSTRUMENT • Guitar: connect staff notation and TAB with all six strings and fret positions. • Bass guitar: find notes on the fretboard and practice melodies in a lower register. • Ukulele: learn chord shapes and strumming on screen, then explore melodies. • Violin: connect notes with strings and the finger or position labels shown. • Drums: identify kick, snare and hi-hat on the score and select the matching pads. LEARN THROUGH FAMILIAR MUSIC Explore practice arrangements of existing pieces, with score sources and excerpts identified. Listen to an example, choose a range of measures and repeat it. Drum songs use educational accompaniments. After a one-bar count-in, tap the pads with the metronome and melody and get timing feedback on your screen taps. KNOW WHAT TO PRACTICE NEXT Use demonstrations and hints, then try independently. Review mistakes and follow each instrument’s progress. Screen exercises do not listen through a microphone or assess physical playing technique. Start with free practice. Optional one-time Premium unlocks additional songs, removes ads and removes heart limits.
Calc Pass
Prepare for AP Calculus exams with comprehensive study materials and practice. This app offers guided tutorials, over 1,100 practice questions, chapter quizzes, and full-length exams. It provides personalized study schedules and predicts your AP score to help you study with confidence.
- AP Calculus AB/BC content
- 10 comprehensive chapters
- 1,100+ practice questions
- Chapter tutorials and quizzes
- Full-length practice exams
- Personalized study schedule
- Progress tracking
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CalcPass is a comprehensive AP Calculus study and practice app designed to help students prepare for the AP Calculus AB and BC exams. Study all 10 major AP Calculus chapters with guided tutorials, practice questions, chapter quizzes, and full-length practice exams. CalcPass helps you identify areas that need more practice and provides a structured study experience based on your AP exam date. Features include: • AP Calculus AB and BC content • 10 comprehensive chapters • 1,100+ practice questions • Chapter tutorials and quizzes • Full-length AP Calculus practice exams • Predicted AP score from practice exams • Personalized study schedule based on your exam date • Progress tracking Whether you're beginning your AP Calculus preparation or reviewing before exam day, CalcPass gives you the tools to practice, assess your progress, and prepare with confidence.
Screenshots
Verdict
The clearest difference is ads: Calc Pass at none against Read Notes's shown. Calc Pass also leads on rating (5.0 vs 4.7). Read Notes's advantage is ratings volume (7 vs 1). On price, update cadence, in-app purchases and monetization model 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. Read Notes sells 1 one-off in-app purchase and Calc Pass sells 3 in-app purchases, starting at $49.99 per 3 months. Whichever you choose, the download price is not the number that matters.
Calc Pass holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Read Notes has 7 ratings behind it against 1, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | Read Notes | Calc Pass |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (7 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 7 — better | 1 |
| Update frequency | Weekly | Weekly |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 91 MB | 38 MB |
| Age rating | 12+ | 4+ |
| Developer | minjae Lee | Clinical Biostats, LLC. |
In-app purchases
Read Notes
- Remove Ads$7.99
Calc Pass
- CalcPass+ 3 Months$49.993 Months
- CalcPass+ 6 Months$89.996 Months
- CalcPass+ 1 Year$149.991 Year









