SynthMaster One vs HOUSE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SynthMaster One
This powerful wavetable synthesizer app offers an intuitive workflow for creating unique sounds. It features a rich library of wavetables, inspiring presets, and a semi-modular architecture for deep sound design. Easily sync data across devices and integrate with DAWs.
- Wavetable synthesis
- Semi-modular architecture
- 650 factory presets
- AUv3 support
- Cross-platform cloud sync
- Real-time modulation feedback
- 32-step arpeggiator/sequencer
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SynthMaster One iOS is KV331 Audio's first full blown universal synth app on iOS platform. It's a powerful wavetable synth with an intuitive workflow. With its simple layout, rich wavetable/waveform content and inspiring factory presets library, designing new sounds with SynthMaster One iOS is a joy. SynthMaster One iOS is feature wise identical to the desktop version except the following: * 16 voice polyphony (32 for the desktop version) * Comes with 650 presets (1250 for the desktop version) FEATURES * Universal App: SynthMaster One is now a universal standalone/AUv3 synth app running on iPhone 7 and above. * 650 Factory Presets: SynthMaster One iOS comes with inspiring factory presets from a world class team of sound designers: Arksun, Aiyn Zahev, BigTone Studios, Brian Transeau, Bluffmunkey, Bulent Biyikoglu, Gercek Dorman, Dejavu Sound, Fragment Audio, Kurt Ader, Mirko Ruta, Nori Ubukata, Rob Lee, Ufuk Kevser, Selcuk Ergen, The Machine, Vandalism Sound, Venus Theory, Vorpalsound and Xenos Soundworks * AUv3: SynthMaster One iOS supports AudioUnits V3, allowing multiple instances to run under supporting DAW apps like GarageBand, Cubasis or Beat Maker. * Files App Integration: Easily import/export presets, waveforms or scales using the common file browser UI (requires iOS 11+). * Real-time Modulation Feedback: See in real-time how modulation sources and targets change. This is a very helpful feature when designing sounds! * Cross Platform Cloud Synchronization: Easily synchronize your SynthMaster One related data across multiple platforms (Windows, MacOS, iPad, iPhone) * Semi-Modular Architecture: For each SynthMaster One instance, there are 2 oscillators with 2 sub oscillators, 2 Filters, 4 ADSR Envelopes, 3 LFOs, a powerful 16 step arpeggiator/sequencer and also 11 different effects that can be inserted on to 6 FX insert slots. The sub oscillators can be connected to the oscillators in 5 different modes which let you use it as a regular sub oscillator or do complex modulations such as ring modulation, amplitude modulation, phase modulation or frequency modulation. * 32 Step Arpeggiator/Sequencer: The arpeggiator in SynthMaster One features classic arpeggiator modes such as Up, Down, UpDown, DownUp, UpDown2, DownUp2, AsPlayed as well as Sequence, Chord and Arpeggiate modes. * Wavetable Synthesis: SynthMaster One implements true wavetable synthesis which opens up new possibilities for sound design. It comes with a rich content library with hundreds of waveforms and wavetables. * Stereo Oscillators with up to 16 voices Unison: Each of the 2 oscillators in SynthMaster One have stereo output, and can have up to 16 voices "unison". Using the "voices", "voices mix", "detune curve", "detune spread", "pan stread", "tone spread" and "phase spread" parameters, each oscillator can generate a rich "supersaw" type sound. * Zero Delay Feedback Filters: All of the 4 filter categories in SynthMaster One are developed using the zero delay feedback filter technology. With advanced filter parameters like input gain, drive, acid, filter nonlinearities and up to 4 times oversampling you can get that "analog" sound from the filters! * Rich Set of Effects: SynthMaster One features 11 different effect types: Distortion, LoFi, Ensemble, Phaser, 6 Band EQ, Compressor, Vocoder, Delay, Chorus, Tremolo, Reverb. * Microtuning: SynthMaster One supports Scala tuning, so tuning can be set either for each preset or globally by loading from a Scala tuning file. SynthMaster One comes with 300+ scales ranging from 5 note equal tempered scales to 12 note alternate tuning scales. * Preset Browser: SynthMaster One features a comprehensive preset browser with separate search criterias for instrument type, preset attributes, music style or preset author. SUPPORTS * All 64-bit iPad devices * AUv3 Audio Unit Extensions * Note-per-channel MIDI controllers (MPE) * Ableton Link * Bluetooth LE MIDI Controllers * AirDrop
HOUSE
This app recreates the sound of a famous vintage electric piano, meticulously sampled and edited by award-winning producers. It offers studio-quality sound on your mobile device for songwriting, performance, and production.
- Vintage electric piano emulation
- Studio-quality sound
- Easy-to-use controls
- 4 Velocity Layers
- MIDI keyboard and pedal support
- iOS AUv3 Plug-in
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Created by two award-winning producers, HOUSE: MARK I was custom made exclusively for your iPhone & iPad. Perfect for the studio, songwriting, and performance. “Really kind of blowing me away... It sounds so freaking great” – Justin Gilbert (Justin Timberlake, Alicia Keys, Eminem) “This is killer... Really phenomenal.” – Tracyan Martin (Janelle Monae, Musiq Soulchild, Fantasia) A famous vintage electric piano was recorded and lovingly hand edited by award-winning producers. The tines. The noise. The feel. The vibe. It’s all here. Handmade by Henny Tha Bizness (Platinum-selling Producer, Jay-Z, Drake, more) and Kennard Garrett (Award-winning Producer/Songwriter, Sting, Shaggy, more), HOUSE: MARK I has already been endorsed and used by professional musicians and hit-making engineers. FEATURES: • Easy-to-use controls. Only the knobs you need. • Pro Sound quality. It’s all about the Vibe. • 4 Velocity Layers, meticulously hand edited and under 150mb • Studio quality sound – on the go. Create wherever you are. • Feels "Real" with carefully sampled key noise and air PLUS: • Use a MIDI keyboard & pedal to play • Standalone app, plus iOS AUv3 Plug-in • Universal: For one low price you get both the iPhone & iPad versions WEBSITE: audiokitpro.com/house “We really love the heck out of this thing! Hopefully you will as well” – Henny tha Bizness WATCH VIDEO: https://www.youtube.com/watch?v=2CKZEEYBUtU "This thing sounds amazing. Velocities are inspiring. Fun and vintage!" – The AudioDabbler, iOS YouTuber “It sounds beautiful! Feels great” – Daniela Rivera (Kylie Minogue, Coldplay, Selena Gomez) “HOUSE: MARK I is an app we play EVERYDAY on the records we create” – Westview Drive, producer team for Sting, Jay-Z, Drake, Kendrick Lamar, Lil Wayne, 50 Cent, Black Eyed Peas, J. Cole, Young Jeezy, R. Kelly, Brandy, Ice Cube, Wiz Khalifa, Rick Ross, and many others. OPEN-SOURCE CODE: Learn how to make your own app! Completely free template to make your own sample-based iOS instrument and iPad AUv3 plug-in, available on Github: https://github.com/AudioKit/AUv3-Example-App REQUIREMENTS: iPhone 6s and above screen size. Requires iOS 11 and above. Will not work with 1st generation SE phones. YOUR SOUND ON THE GO: "This app is definitely something that I will be using a lot more on my gigs. If your laptop crashes the day before a gig, you can use your phone” – Tracyan Martin (Janelle Monae, Musiq Soulchild, Fantasia) SPECIAL THANKS: Morehouse College, AudioKit Team, Jeff Cooper, Matthew Fecher, Aure Prochazka, Jordan Rudess, Daniel Kuntz for the app icon, Brandon Rico, Marcus Manderson, Justin Gilbert, Jamie Portier, Tracyan Martin, Daniella Riviera * All organizations or artists listed in the materials are quotes (or for reference purposes). Unless otherwise stated, there is no official relationship with any company, artist, or organization listed here.
Screenshots
Verdict
The clearest difference is in-app purchases: HOUSE at none against SynthMaster One's 11. HOUSE also leads on update cadence (every 4 days vs every 2 months) and price ($3.99 vs $9.99). On rating, ratings volume, 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
SynthMaster One costs $9.99 and HOUSE $3.99 up front. SynthMaster One sells 11 one-off in-app purchases. HOUSE asks for nothing beyond the download.
HOUSE holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 742 and 1.1K respectively. Written reviews point the same way: 64% of SynthMaster One's written reviews are positive against 88% of HOUSE's.
SynthMaster One ships an update every 2 months, HOUSE every 4 days. The most recent releases landed on October 22, 2026 and October 21, 2026 respectively.
| Parameter | SynthMaster One | HOUSE |
|---|---|---|
| Price | $9.99 | $3.99 — better |
| Rating | 4.7 (742 ratings) | 4.9 (1.1K ratings) — better |
| Positive reviews | 63.8% of reviews | 87.9% of reviews — better |
| Number of ratings | 742 | 1.1K — better |
| Update frequency | Every 2 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 402 MB | 169 MB |
| Age rating | 4+ | 4+ |
| Developer | KV331 Audio | AudioKit Pro |
Customer experience
SynthMaster One
HOUSE
User reviews
SynthMaster One
From 742 App Store ratingsWhat we love
- 🚀 Powerful synth engine
- 👍 Extensive preset library
- 🎨 Versatile sound design capabilities
- 💡 Free desktop version expansions on iPad
- 🎹 Excellent sound quality and tone
Room to improve
- 🐛 Crashes and stability issues
- 🔋 Battery drain in background
- 🤔 Confusing in-app purchase system
- 👎 UI/UX could use improvement
- 🔇 Audio issues and no sound
HOUSE
From 1.1K App Store ratingsWhat we love
- 🎹 Authentic Rhodes sound
- 👍 Easy to use interface
- 💰 Great value for the price
- 🎨 Versatile sound customization
- 🎓 Supports educational initiatives
Room to improve
- 🔈 Inconsistent volume/velocity response
- 🔍 Limited preset selection
- 🐛 Compatibility issues with some DAWs
- 📢 Noticeable background noise
Bugs and requests
SynthMaster One
Reported bugs
4 issues- Stuck notes and MIDI issues
- Preset loading crashes
- Restore purchases not working
- Incompatibility with certain DAWs
Requested features
4 requests- Add custom wavetable support
- Improve MIDI mapping and MPE functionality
- Optimize performance on older devices
- Streamline preset management and browsing
HOUSE
Reported bugs
2 issues- Midi data not recorded in some DAWs
- Housemark track missing from exported mixes
Requested features
4 requests- Expanded preset library
- Improved velocity sensitivity
- Ableton Link support
- Better integration with iOS DAWs
In-app purchases
SynthMaster One
- BigTone Club Construction Set$4.99
- True Trance Sounds Volume 1$4.99
- Vandalism Future House$4.99
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- NatLife Retrowave Sounds Vol.1$4.99
- Demis Hellen Euphoric Trance$4.99
- Venus Theory Trap Sounds$4.99
- Vandalism Shocking Future Bass$4.99
- NatLife Progressive&Deep Vol.1$4.99
- Bluffmunkey Cinematic Sounds$4.99
- Desktop Presets Upgrade$7.99
- SM One Expansions Bundle$24.99
HOUSE
No in-app purchases








