SynthMaster 2 vs Super J8 Synth + AUv3
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SynthMaster 2
This powerful software synthesizer offers a vast array of sound design capabilities, including multiple oscillator modes, extensive modulation options, and a wide selection of filters. Explore over 1000 factory presets or create your own unique sounds. Available as a standalone app or AUv3 plugin.
- Multiple oscillator modes (Basic, Additive, Wavetable, Vector)
- Extensive modulation architecture
- 6 filter categories
- Import custom wave files
- 1000+ factory presets
- Standalone app and AUv3 plugin
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KV331 Audio is proud to announce the availability of their award winning software synthesizer SynthMaster 2.9 on iOS platform. As being the first app developed using KV331 Audio’s new cross-platform UI framework, SynthMaster 2 runs as a standalone app or AUv3 plugin on iPads with iOS 11 and above. SynthMaster 2 supports native resolutions of various iPad devices. User interfaces are provided for 9.7, 11 and 12.9 inch iPads in 4 different skins (Blue, White, Dark, Proto). Separate interfaces are provided for the AudioUnit plugin as well. SynthMaster 2 comes with 1000 factory presets designed by world class sound designers such as BigTone, Nori Ubukata, NatLife and Yuli Yolo. Thanks to the comprehensive preset browsing features, users can easily filter presets by author name, bank name, instrument type or preset name and find the sounds that they are looking for. There’s also an IAP Shop, which lets users purchase additional sounds: 1. "Desktop Presets Upgrade": This IAP adds all factory presets in SynthMaster 2.9, increasing the total preset count to 2000. 2. "All Expansions Bundle": This IAP adds all current 38 SynthMaster preset expansion banks. Sound Engine: At the heart of SynthMaster 2’s powerful sound engine lies its oscillators, modulators, and filters. Oscillators: The oscillators can operate in 4 different modes to generate sound: 1. In Basic mode, the oscillator plays single cycle waveforms or samples. With the Oscillator Unison turned on, up to 8 voices per oscillator can be played. 2. In Additive mode, 8 Basic oscillators can be stacked up to create richer tones. 3. In Wavetable mode, the oscillator can play wavetables with up to 256 frames. 4. In Vector mode, 4 Basic oscillators are mixed in 2 dimensions. Modulators: Modulators are simply basic oscillators that can be added to other oscillators or modulate other oscillators’ or modulators’ phases. By connecting modulators to other oscillators or modulators, complex FM tones can be synthesized. Importing Wave Files into SynthMaster: While designing sounds, users can easily import wave files into SynthMaster 2. SynthMaster 2 can categorize those files into waveforms, wavetables or multi samples and import them accordingly. Filters: Once the sound is generated by the oscillators it goes through SynthMaster’s filters, which can operate in 6 different categories: Digital, VAnalog, Ladder, Diode Ladder, State Variable and Bite. Custom distortion can be applied before or after the filters as well. Modulation Architecture: SynthMaster 2 features a comprehensive modulation architecture with a wide range of modulation sources: 1. MIDI controls 2. Macros controls 3. 4 ADSR envelopes per layer 4. 4 Multisegmented envelopes per payer 5. 4 LFOs per layer 6. 4 Sequencers per layer 7. 4 Keyscalers per layer There’s real-time visual feedback that lets users see how modulation sources and targets are changing when a note is being played. This is extremely helpful when designing sounds with SynthMaster 2. New modulations can be created easily by dragging and dropping a modulation source onto a knob or slider control. Users can easily see which controls are modulated by a modulation source by clicking on that source. Controls that are being modulated by that source will display modulation amounts. By long pressing a control, the modulation amount can be edited without the need to go through the mod matrix. Arp/Sequencer: SynthMaster features a comprehensive arpeggiator / sequencer with 32 steps. Users can easily create sequences by recording steps one by one. Effects: Each of the 2 layers in SynthMaster has 5 insert effect slots. 13 different types of effects can be instantiated in any of those slots. There are also 2 global effect send busses which can be used to create more complex effect routings.
Super J8 Synth + AUv3
This app offers a powerful analog synthesizer emulation, inspired by a legendary vintage instrument. It provides a vast array of sounds, from lush pads to deep basses, with advanced DSP and numerous modulation options. Explore over 700 presets and use it standalone or as an AUv3 plugin.
- Analog emulation sound engine
- 700+ presets
- True poly unison
- Oscillator sync
- Classic step sequencer
- Dual arpeggiators
- AUv3 plugin support
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SUPER J8 (Inspired by Jupiter-8*) Next Level Analog Emulation SUPER J8 delivers lush pads, deep basses, classic keys, and vibrant leads that feel truly alive. Inspired by a LEGENDARY analog synthesizer. No Vibe Coding. No Generative AI! NO SAMPLES. PURE SYNTH POWER! NEW FEATURES: Oscillator Sync, Cross-Modulation, 2x Oversampling, True Per-Voice Poly Unison, PWM, Analog Voice Modeling, Analog Panning, and Single-Note Polyphony for epic pads and drones that never stop. WHAT PEOPLE ARE SAYING: “I studied a lot of Jupiter-8s. I know how a Jupiter-8 sounds. This is it!” – App/VST Maker “Man I’m already sold after just 1 sound… That’s definitely the Jupiter sound.” – Audio Production (YouTube) “WOW! I'm at 5 minutes in and more than Blown Away” – Jay Zen DEVICE REQUIREMENTS: iPad: 2016 iPad Pro (A9X) or newer (Does not work on iPad Air 2) iPhone: 2018 iPhone XS (A12) or newer (Works on iPhone SE 2020) INSTANT INSPIRATION Explore 700+ hand made presets, a classic step sequencer, dual arpeggiators, analog-style filters, tape delay, reverb, chorus, 3 LFOs, and real-time FX control. Your creativity will never hit a wall "FANTASTIC!" – The GarageBand Guide “I like SUPER J8’s presets BETTER than both the Arturia Jup-8 and Cherry Audio Mercury-8” – Editor, All Things VST “SUPER J8 is a fun, easy-to-use app that everyone should own” – Field Tone Audio WATCH VIDEOS TO HEAR IT IN ACTION: audiokitpro.com/superj8 FEATURES • NEW Sound Engine with advanced DSP • 700+ presets included (more to come) • Presets Sync with iPhone, iPad, and Mac version • True Poly Unison with Unison Start Sync • J8-style Cross-Mod plus frequency tracker • 64 voices! Like a Jupiter-64?! Play 8 notes with 8-voice unison • Microtonality, World and Western Scales! • Accessibility and Voice Over throughout the app to make an enjoyable experience for blind and visually impaired musicians. • 2x oversampling for more analog-style lows and highs • Awesome Oscillator Sync • PWM engine modeled after vintage hardware behavior • Per-Voice Analog Panning • Single Note Polyphony for notes & unison stacks! • FX: Glorious Reverb based on Sean Costello’s code (Valhalla* Plug-ins), Analog Tape Delay, Crush, and more. • 3 LFOs with 60+ destinations; modulate almost anything (even other LFOs) • MIDI keyboard support plus MIDI Learn • Classic ARP & Vintage-style Step Sequencer • ENV-1 Polarity & 2 ADSR envelopes, just like classic hardware • Juno* style type I & II Chorus • Dual assignable Touch pads for real-time performance control • Jupiter-inspired filter with deep growl WORKS AS A PLUG-IN Use SUPER J8 as an AUv3 instrument in Logic for iPad, GarageBand, AUM, Cubasis, and more. WORKS BY ITSELF • Built-in Record button: capture your synth and FX, then export a WAV file • Control it with a MIDI Keyboard, MIDI Learn to map your controls to the app No other apps required. LEARN MORE audiokitpro.com/superj8 * LEGAL NOTICES SUPER J8 is not affiliated with or endorsed by Roland Corporation. “Jupiter-8”, "Juno", and any other referenced trademarks are the property of their respective owners and are used for identification and reference only. SUPER J8 is not an official emulation of any specific instrument. It is an original creation inspired by classic synthesizers, created to celebrate music creation and education. SUPER J8 is not affiliated or endorsed by Valhalla Plugins. We thank Sean Costello for his amazing and generous contributions to open-source code, making this app's beautiful Reverb possible.
Screenshots
Verdict
The clearest difference is in-app purchases: Super J8 Synth + AUv3 at none against SynthMaster 2's 32. Super J8 Synth + AUv3 also leads on ads (none vs shown) and review sentiment (96% vs 68%). SynthMaster 2's advantage is ratings volume (451 vs 87). On rating 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
SynthMaster 2 costs $14.99 and Super J8 Synth + AUv3 $8.99 up front. SynthMaster 2 sells 32 one-off in-app purchases. Super J8 Synth + AUv3 asks for nothing beyond the download.
Super J8 Synth + AUv3 holds the better App Store score, 4.9 against 4.8. That said, the two scores are not equally well evidenced: SynthMaster 2 has 451 ratings behind it against 87, so its average is the more settled of the two. Written reviews point the same way: 68% of SynthMaster 2's written reviews are positive against 96% of Super J8 Synth + AUv3's.
SynthMaster 2 ships an update every 3 weeks, Super J8 Synth + AUv3 every 4 days. The most recent releases landed on October 14, 2026 and October 21, 2026 respectively.
| Parameter | SynthMaster 2 | Super J8 Synth + AUv3 |
|---|---|---|
| Price | $14.99 | $8.99 — better |
| Rating | 4.8 (451 ratings) | 4.9 (87 ratings) — better |
| Positive reviews | 68.5% of reviews | 96.4% of reviews — better |
| Number of ratings | 451 — better | 87 |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Best chart rank | — | #88 — better |
| Devices | iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15 | 15.0 |
| Further details — not scored | ||
| Size | 918 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | KV331 Audio | AudioKit Pro |
Customer experience
SynthMaster 2
Super J8 Synth + AUv3
Bugs and requests
SynthMaster 2
Reported bugs
4 issues- Presets not loading correctly
- Modulation not working after loading project
- Skin resets to default
- App crashes frequently
Requested features
2 requests- Pitch bend/glide for imported samples
- Integration with AUM audio mixer
Super J8 Synth + AUv3
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SynthMaster 2
- BigTone Tableworks Vol.2$1.99
- Burak Yeter Synth Sounds Vol1$1.99
- Aiyn Zahev Expansion 1$1.99
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- BigTone Tableworks Vol.1$1.99
- Michael Kastrup Expansion$1.99
- EDM Stars Volume 1$1.99
- Nori Ubukata Pop Hits Vol.4$1.99
- Rob Lee EDM Expansion Vol.2$1.99
- Alonso Sound Future Rave$1.99
- Nori Ubukata Pop Hits Vol.1$1.99
- BigTone Techno Bits Vol.1$1.99
- Club Sequences Vol.1$2.99
- Historical Synth Giants Vol.3$2.99
- Dawn of Electronic Music Vol.2$2.99
- Nori Ubukata Art Rock Basics$2.99
- BigTone Analog Basics 02$4.99
- BigTone Analog Basics$4.99
- BigTone Signature Sounds Vol.1$4.99
- NU Sounds of the World$4.99
- Historical Synth Giants Vol.4$4.99
- Historical Synth Giants Vol.1$4.99
- Historical Synth Giants Vol.2$4.99
- Japan Vintage$4.99
- NatLife Future Bass Sounds$4.99
- Danyella EDM Expansion Vol.1$4.99
- Dawn of Electronic Music Vol.1$4.99
- Dawn of Electronic Music Vol.3$4.99
- Rob Lee EDM Expansion Vol.3$4.99
- Natlife Disco Funk$4.99
- Insigne Essentials 4 Clubbin$4.99
- Desktop Presets Upgrade$9.99
- All Expansions Bundle$49.99
Super J8 Synth + AUv3
No in-app purchases
Questions
Is SynthMaster 2 free?
Is Super J8 Synth + AUv3 free?
Which has better reviews, SynthMaster 2 or Super J8 Synth + AUv3?
Do SynthMaster 2 or Super J8 Synth + AUv3 have ads?
Which is updated more often, SynthMaster 2 or Super J8 Synth + AUv3?
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