Synthwaver vs Chord Borrower
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Synthwaver
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SYNTHWAVER: SOUND IN MOTION Step inside the sound. SYNTHWAVER is a spatial synthesizer for iPhone and iPad that turns pure tones, noise, frequency modulation, and movement into an instrument you can feel around you. Every voice travels through a three-dimensional orbit, giving drones and atmospheres a sense of direction and depth. Put on headphones, press play, and hear synthesis leave the flat plane. BUILD A WORLD, ONE VOICE AT A TIME Start with one synth, then add more to create layers of pitch, color, rhythm, and space. Each voice has its own frequency, level, orbit speed, tilt, noise, FM, and reverb. Let one tone circle slowly beneath a fast-moving signal. Blend a warm noise bed behind a cluster of pitches. Set every layer in motion, or hold movement still and focus on timbre. Complex spatial scenes stay approachable because every sound remains visible, independent, and immediately playable. SCULPT PITCH BY EAR OR BY NOTE Explore the audible range from 20 Hz to 20 kHz with a responsive frequency control. Use the one-octave keyboard for familiar notes, then shift across ten octave positions to reach the register you need. Indicators identify voices at a glance, while numerical readouts keep precise tuning close. Whether you are building intervals, beating tones, low-end rumbles, or glassy highs, pitch never feels buried in a menu. MAKE EVERY SOUND MOVE Movement is part of the synthesis engine. Set each voice to orbit from near stillness to 6.8 revolutions per second, then tilt its path through the Z-plane. High-quality HRTF headphone rendering creates a binaural field with changing position. Layer speeds and angles until simple waveforms become kinetic patterns: circling, crossing, separating, and reconnecting in space. GO BEYOND THE SINE Turn on frequency modulation for sidebands, metallic edges, animated basses, bells, buzzes, and unstable textures. Dial in the modulation index, choose a frequency in hertz or a musical ratio tied to the carrier, then refine it with coarse and fine controls. FM can add subtle shimmer or push far into complex territory. Each voice has its own settings, so one layer can remain pure while another fractures into rich motion. BLEND TONE, NOISE, AND SPACE Move from a clean oscillator to noise, or settle anywhere between them. Shape noise continuously from white to pink, from bright hiss to softer ambience. Then place each voice in one of ten acoustic spaces, including rooms, halls, chambers, plate, and cathedral, and set the wet/dry balance. Orbit, noise color, FM, and reverb make SYNTHWAVER at home creating test tones, evolving drones, cinematic atmospheres, strange machines, and abstract sound art. FAST, TACTILE, AND READY TO EXPERIMENT SYNTHWAVER keeps essential controls on the surface. Start or stop voices, minimize them into frequency chips, bring any synth forward, and stop the scene instantly from the master bar. Shape individual levels or adjust overall output. The interface adapts to portrait and landscape on iPhone and iPad, so it stays playable whether you are exploring on the couch, sketching with headphones, or presenting an idea. SAVE THE MOMENT When a combination clicks, save it as a preset. SYNTHWAVER remembers every voice and its playing state, pitch, spatial motion, FM, volume, noise, octave, and reverb. Open a scene later, continue shaping it, or build a library of drones, studies, and sonic environments. Move from discovery to a sound you can revisit. FOR CURIOUS EARS SYNTHWAVER is for musicians, sound designers, composers, students, educators, spatial-audio enthusiasts, and curious listeners. Study frequency relationships, explore modulation, design moving textures, build meditative soundscapes, or lose yourself in a strange orbit of your own making. No timeline. No maze of pages. Just sound, motion, and direct control. Your headphones are not just the output. They are the listening space. Create a voice. Set it in motion. Shape the air. Enter SYNTHWAVER.
Chord Borrower
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Chord Borrower โ Modal Chord Progressions Borrow chords from any mode. Build progressions that sound nothing like everyone else's. Chord Borrower turns your phone into a modal chord instrument. Pick a key, and instantly play the seven diatonic chords of that scale โ then stack on chords borrowed from Dorian, Phrygian, Lydian, harmonic minor, melodic minor, and every other mode hiding inside your key. Tap through rows of chord buttons to hear how a single root note sounds across completely different modal colors, and build progressions no ordinary chord app could give you. Play in any key, any mode Choose a major or minor key, and your primary row lights up with its seven diatonic triads. Add up to six more rows, each pulled from a different mode built on that same root โ the full set of major-scale modes, plus the modes of harmonic and melodic minor. Compare Ionian against Mixolydian, or drop into Phrygian dominant, all without changing key. Shape every chord your way Tap a chord button, then dial in its quality โ 7th, 9th, 11th, 13th, sus2, or sus4. Each button remembers its own setting, so you can build a progression where every chord has its own color and extension, exactly as you shaped it. Choose your voice Play everything through piano, kalimba, acoustic guitar, or synth โ warm, musical presets that make every chord (and every borrowed mode) sound great. Designed to inspire A single clean screen, pastel colors, soft rounded buttons, and a friendly, uncluttered layout keep the focus on your ears, not the interface. Whether you're a songwriter chasing a fresh progression, a music student exploring modal theory, or just someone who loves the sound of an unexpected chord, Chord Borrower makes modal harmony playable, visual, and fun.
Screenshots
Verdict
The clearest difference is price: Synthwaver at $0.99 against Chord Borrower's $2.99. Chord Borrower's advantage is iOS requirement (15.1 vs 18.5). On ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Synthwaver costs $0.99 and Chord Borrower $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Synthwaver | Chord Borrower |
|---|---|---|
| Price | $0.99 โ better | $2.99 |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod โ better |
| Requires iOS | 18.5 | 15.1 โ better |
| Further details โ not scored | ||
| Size | 19 MB | 186 MB |
| Age rating | 4+ | 4+ |
| Developer | Richard Barber | Aaron Wilford |
In-app purchases
Synthwaver
No in-app purchases
Chord Borrower
No in-app purchases
Questions
Is Synthwaver free?
Is Chord Borrower free?
Do Synthwaver or Chord Borrower have ads?
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