Hooktheory II vs Loop Slower
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hooktheory II
This app helps you understand and create sophisticated music by teaching advanced chord progressions and melody techniques. Learn from interactive exercises and audiovisual examples inspired by popular artists. It's designed for musicians looking to enhance their songwriting skills.
- Learn seventh chords, embellishments, and secondary chords
- Master minor harmony, modes, and modal mixture
- Discover songwriting tactics from famous artists
- Interactive exercises and audiovisual examples
- Compose chords and melody in various scales
- Utilize chord inversions and complex chord types
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Continue on your musical journey! Build on the foundation you learned in Hooktheory I, and discover an intuitive and deep understanding of richer, more sophisticated music. Unlock the songwriting tactics used by The Beatles, Bowie, Queen, Michael Jackson, and more. Learn about seventh chords, embellishments, secondary chords, minor harmony, modes, and modal mixture. Validated by over 30,000 hobby and pro musicians like you, the Hooktheory Book Series is the best-selling how-to series for musicians for a reason. Hooktheory II isn’t like other music theory books. Hooktheory teaches with an easy-to-understand music format that emphasizes chord and melody function. Rich audiovisual animations play along as you learn. We dissect popular songs and show you how the pros do it. Immediately practice concepts and tactics with our companion musical sketchpad, Hookpad. There is nothing else like it! Fun to read. Easy to understand. Full of practical knowledge. Learn from 84 interactive exercises and 228 audiovisual examples from artists like The Beatles, Elton John, Queen, David Bowie, Michael Jackson, Boyz II Men, Coldplay, Van Morrison, Adele, Ariana Grande, John Mayer, and many more! In Hooktheory II, you’ll learn the following skills: • Composing chords and melody in minor (and other scales). • Using chord inversions (reordering chord tones) to create effective bass lines. • Using complex chord types (e.g. 7th chords, extended chords, suspended chords, and “add” chords) to enrich your chord progressions. • Using secondary chords (chords based on a different key) to create tension. • Combining melody and chords from multiple scales (modal mixture). • Utilizing songwriting techniques like energy control, deception, and harmonic scope to control listeners' expectations. Benefits: • Simple piano roll notation (sheet music knowledge not required). • Every concept + technique demonstrated through an actual song. • 228 audiovisual examples from artists like The Beatles, Elton John, and Queen. • Reinforce learning at every step with 83 exercises. • Designed to be used with Hookpad Music Making Software. Hookpad lets you immediately practice every concept and tactic you learn in the books. To sum it up: Hooktheory II will teach you all of the essential techniques for crafting effective and compelling chord progressions and melodies. Reading Hooktheory II doesn’t require the ability to read sheet music or any music knowledge outside what was covered in Hooktheory I. On average, it takes about twelve hours to read (but more to fully absorb) so it isn't a huge time commitment. Dedicate only a few days to absorbing this book and gain a lifetime of skills that will give your music that professional edge.
Loop Slower
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A simple tool that allows you to loop a section of a song and adjust the playback speed. Perfect for anyone who’s practicing an instrument and want to jam along at desired speed, or when transcribing a song. The app offers: - Changing playback speed - Looping particular section of a song - Saving loops and speed per song automatically - Searching and playing songs from your library (on device) - Searching and playing songs on Apple Music* - Recently played songs for quick access * playing full songs on Apple Music requires an active Apple Music subscription.
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Verdict
The clearest difference is price: Loop Slower at $0.99 against Hooktheory II's $19.99. Loop Slower also leads on in-app purchases (none vs 1). Hooktheory II's advantage is update cadence (monthly vs every 12 months) and iOS requirement (13.0 vs 17.1). On 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
Hooktheory II costs $19.99 and Loop Slower $0.99 up front. Hooktheory II sells 1 one-off in-app purchase. Loop Slower asks for nothing beyond the download.
Hooktheory II ships an update monthly, Loop Slower every 12 months. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.
| Parameter | Hooktheory II | Loop Slower |
|---|---|---|
| Price | $19.99 | $0.99 — better |
| Rating | 4.8 (28 ratings) — better | — |
| Positive reviews | 92.0% of reviews | — |
| Number of ratings | 28 — better | — |
| Update frequency | Monthly — better | Every 12 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.1 |
| Further details — not scored | ||
| Size | 123 MB | 5 MB |
| Age rating | 4+ | 9+ |
| Developer | Hooktheory LLC | Algirdas Gridziuska |
In-app purchases
Hooktheory II
- Full Version$19.99
Loop Slower
No in-app purchases
Questions
Is Hooktheory II free?
Is Loop Slower free?
Do Hooktheory II or Loop Slower have ads?
Which is updated more often, Hooktheory II or Loop Slower?
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