Pianoesis vs DroneSynth
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pianoesis
This app transforms local MIDI files or solo piano recordings into playable scores for a unique duet experience. It offers an intuitive, no-keys-to-aim-at interface where any tap plays the correct pitch. Play solo with the app as your partner or split a duet with a friend on a large screen.
- Offline MIDI and audio import
- Tap anywhere to play
- Solo and Duo modes
- Split-screen play for two users
- Multiple visual score displays
- Automatic voice separation
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Pianoesis is a fully offline rhythm-piano duet platform with zero learning curve. Import a local MIDI file or a solo piano recording and get a playable score in one tap. No keys to aim at — tap anywhere on screen to play. The tempo is entirely yours, so every performance stays true to the score yet sounds unmistakably like you. Play solo and the app is your duet partner; in Duo Mode, play both hands yourself — or split them with a friend, one hand each. DUO MODE In landscape, the iPad screen splits into two mirrored halves, one hand on each side. Play with both hands yourself for the full two-voice experience, or split the piece with a friend — one hand each. The two sides stay in sync — all you do is keep the beat. ▪ Built for iPad: the split layout, touch targets, and navigation are tailored to two-hand play on the big screen ▪ Duo Sprite Jump: twin sprites leap in sync, with live scoring and sync halos for even more ensemble fun WHY IT ALWAYS SOUNDS GOOD ▪ Every note lands right: the melody is locked to the source score, so any tap hits the correct pitch. ▪ A perfect duet by design: the app plays the other hand in real time — two-hand harmony without the coordination practice. ▪ True to the original: your part and the accompaniment both follow the original score. ▪ Two sound sources: a warm, lifelike MIDI piano, or the original piano recording in lossless quality. Switch anytime. OUR SIGNATURE VISUAL — THE TAIJI SPINNING STAFF On the home screen, treble and bass notes drift out along a slowly spinning taiji staff — a signature animation that brings the idea to life: 88 keys become one, and the app is your duet partner. MORE WAYS TO SEE THE MUSIC ▪ Taiji spinning staff ▪ Horizontal score ▪ Sprite jump ▪ Vertical waterfall FOUR WAYS TO SEPARATE VOICES ▪ Ready-made tracks: pick one hand from a two-track MIDI and start playing. ▪ Smart separation: single-track MIDI or piano audio is split into melody and accompaniment automatically. ▪ Track mapping: carry a proven left/right-hand split from a reference score over to your piece. ▪ Fine editing: hand-assign individual notes for tricky passages. FULLY OFFLINE ▪ Everything runs on-device. No account, no uploads. ▪ No ads, no in-app purchases, no subscriptions ▪ The built-in library is fully licensed for free distribution — per-piece sources and licenses are listed under "Copyright" in the library ▪ Universal: iPhone, iPad, and Mac. SUPPORTED FORMATS ▪ Scores: MIDI (.mid / .midi) ▪ Audio: MP3 / WAV / FLAC / M4A / AAC — solo piano recordings work best SUPPORT & PRIVACY ▪ Website: https://pianoesis.com ▪ Privacy policy: https://pianoesis.com/privacy ▪ Contact: support@pianoesis.com
DroneSynth
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As both a musician and a software engineer, I've always found drones incredibly useful for my musical creativity, supporting my practice with singing, flute, didgeridoo, and other instruments like synthesiser and guitar. That passion for music and technology led me to bring DroneSynth to iOS, built from the ground up for the Apple ecosystem. DroneSynth turns your iPhone and iPad into a hands-on, analog-style drone synthesiser built for ambient textures, evolving pads, and hypnotic soundscapes — no menus to dig through, knobs you can hear. Layer three independent oscillators — sine, triangle, square, saw, and pink noise — each with its own volume, octave, semitone, and fine-tune. Shape the blend with a full ADSR envelope and two independent LFOs modulating filter cutoff and pitch, each with sine, triangle, or random shapes and drift. STEREO-CAPABLE MOOG LADDER FILTER Sculpt your tone with a classic Moog Ladder filter, featuring live cutoff and resonance. Upgrade to true stereo filtering — two independently detuned filters panned hard left and right — for a wider, richer, more three-dimensional drone. BUILT-IN EFFECTS • Tempo-syncable delay with tap-tempo and ping-pong stereo bouncing • Lush reverb across four distinct spaces — Room, Hall, Plate, and Cathedral — each with its own size, pre-delay, and decay character PERFORMANCE-READY • Drone/sustain mode for endless, hands-free evolving tones • On-screen keyboard with adjustable octave and range • Save and recall unlimited presets, so your favourite patches are always one tap away • Adaptive layout — a focused portrait view and a full landscape control surface with a persistent sidebar, so every parameter stays reachable Whether you're scoring a film, building a meditation soundscape, or want a synth that rewards knob-twisting over menu-diving, DroneSynth gives you real-time control over every stage of the signal path. Stereo Filters is available as an optional one-time in-app purchase.
Screenshots
Verdict
The clearest difference is in-app purchases: Pianoesis at none against DroneSynth's 1. On price, 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
Both are free to download. DroneSynth sells 1 one-off in-app purchase. Pianoesis asks for nothing beyond the download.
| Parameter | Pianoesis | DroneSynth |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 10 days | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 101 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | 征宇 孙 | frederick bertram |
In-app purchases
Pianoesis
No in-app purchases
DroneSynth
- Stereo Filters$0.99









