Grothm vs Harmonics//
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Grothm
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Grothm is a structured practice tracker with a professional metronome built in. Plan sessions, automate tempo changes, and track time, BPM, goals, and progress over time. TRAIN WITH A PLAN Build focused routines for warm-ups, rudiments, speed, technique, and repertoire. AUTOMATE TEMPO TRAINING Use multiple automatic tempo modes to develop speed without adjusting the metronome by hand. TRACK EVERY SESSION Automatically record practice time, tempo, goals, and completion history. SEE YOUR PROGRESS Review growth curves and time-range reports to understand how your practice develops. PROFESSIONAL METRONOME Train with precise timing, advanced subdivisions, dotted notes, automatic tempo changes, and speeds up to 350 BPM. FOCUSED CYBERPUNK DESIGN A clear, immersive interface built for focused practice. PRIVATE AND DISTRACTION-FREE No account. No ads. No internet required. Your data stays on your device. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Harmonics//
Effortlessly improvise music with evolving backing tracks across various genres. Discover melodies and create expressive soundscapes without needing music theory knowledge. Designed for both experienced musicians and beginners to explore sound and find creative flow.
- Generate backing tracks across genres
- Intuitive melodic keyboards for improvisation
- Explore diverse musical moods
- Dynamic accompaniment with evolving grooves
- Adjust tempo, energy, and instrumentation
- Minimalist interface for creativity
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Harmonics// transforms improvisation into an effortless musical experience. Choose a mood, select a groove, and instantly begin playing over rich, evolving backing tracks inspired by jazz, funk, neo soul, ambient, pop, Latin, and more. Whether you are an experienced musician or someone simply exploring sound for the first time, Harmonics// helps you discover melodies that feel expressive, emotional, and alive. Designed to feel inspiring instead of technical, Harmonics// generates dynamic accompaniment with tasteful drums, basslines, harmony, and atmospheric textures that continuously evolve while you play. Every session becomes a unique musical journey. FEATURES • Instantly generate backing tracks across multiple genres and vibes • Improvise using intuitive melodic keyboards designed to help you sound musical immediately • Explore moods ranging from cinematic and ambient to funky, soulful, and jazzy • Dynamic accompaniment with evolving grooves, fills, and musical variation • Built-in presets inspired by classic jazz standards, neo soul grooves, funk jams, Latin rhythms, and modern atmospheric textures • Adjust tempo, energy, instrumentation, and feel in real time • Create relaxing soundscapes, expressive solos, or energetic jam sessions • Minimal, immersive interface designed for flow and creativity • No music theory knowledge required Whether you want to practice improvisation, relax with expressive music, discover new melodic ideas, or simply lose yourself in creative flow, Harmonics// gives you an instant connection to musical inspiration. Tap into the flow.
Screenshots
Verdict
The clearest difference is price: Grothm at Free against Harmonics//'s $2.99. Harmonics//'s advantage is in-app purchases (none vs 1). On ads, device support 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
Grothm is free to download; Harmonics// costs $2.99 up front. Grothm sells 1 one-off in-app purchase. Harmonics// asks for nothing beyond the download.
| Parameter | Grothm | Harmonics// |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Paid |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18 — better | 18.6 |
| Further details — not scored | ||
| Size | 7 MB | 151 MB |
| Age rating | 4+ | 4+ |
| Developer | 雒敏 郭 | CHASE PLACE LLC |
In-app purchases
Grothm
- Grothm Pro$4.99
Harmonics//
No in-app purchases









