Comparison

SessionBand Rock 1 vs SynthMaster 2

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SessionBand Rock 1

Create studio-quality Rock and Metal music tracks in minutes using a chord-based loop system. This app provides over 16,000 audio loops recorded by professional musicians across 15 different styles, making it easy for both musicians and non-musicians to compose royalty-free music.

Highlights
  • Chord-based loop creation
  • 15 Rock and Metal styles
  • 16,000+ studio-quality audio loops
  • Auto-transpose and automated mixing
  • One-touch live recording
  • Audiobus compatibility
  • Royalty-free music creation
Read full description

Create studio-quality Rock and Metal tracks to your own chords in minutes with the award-winning SessionBand app - the world’s only chord-based loop app. For Rock musicians and songwriters, this unique app is the ultimate tool for jamming and writing, with full and complete Rock and Metal tracks just minutes away! It's also simple enough for non-musicians to create their own great-sounding, royalty-free music. “Remarkably polished“ Forbes “Create like a master“ Engadget With over 16,000 stunning, chord-based Rock and Metal audio loops (included in the download) individually recorded by 3 of the world's top session musicians, SessionBand Rock instantly converts the chords you select into great sounding audio – wherever you are and whatever your ability. There are 15 different classic UK and US Rock and Metal styles included. Every loop carefully engineered so you can instantly create your own tracks in those styles: from Rolling Stones and Chili Peppers through Muse, Foo Fighters and Iron Maiden, all the way to Slipknot, Slayer and Magadeth! And there's a host of pro features like auto-transpose, automated mixing, one-touch live recording, and Audiobus compatibility - allowing you to seamlessly export our unique content into other top music apps like GarageBand. It has never been easier or quicker to create your own studio quality music even if you can't play a note! If you love Rock and Metal – you will love SessionBand Rock! #1 paid music app in 16 countries since launch and Top 10 in 63 countries. Watch the video at sessionbandapp.com The fastest way to create studio-quality Rock tracks... • Simply pick one of 15 awesome Rock and Metal styles • Choose your chords • Stretch or shorten loops in seconds • Build up a full track in minutes • Instantly hear your track across the other playing styles and tempos • Auto-transpose your entire track (not electronic pitch shift!) • Mix your track (manual or automated) • Adjust track tempo (+/- 15%) • Record direct to audio • Copy straight to other music apps (if you want to) • Share with the world! Get 3 of the world's top session musicians playing on your tracks... • Drums – Ralph Salmins (Gary Moore, Tori Amos, Jeff Beck, Alice Cooper, Paul McCartney, Alanis Morissette, Van Morrison, Jim Steinman, Meat Loaf, Sheryl Crow, The Waterboys...) • Guitars – Adam Goldsmith (Brian May, Meat Loaf, Robbie Williams, Elton John...) • Bass – Geoff Gascoyne (Sting, Van Morrison, Gloria Estefan...) Anyone can create and release professional Rock and Metal tracks with SessionBand... • No musical experience required • Simple, intuitive interface • Audition loops as you go • Build a full track in minutes with all-new 'Track Builder' • Highly educational and great fun • “Perfect for songwriters, singers, producers and music newbies“ 148 Apps Create great sounding real music on the move... • All loops reside within the downloaded app • No internet access required once the app is downloaded • Create studio-quality music absolutely anywhere! • “This app makes it seem like you have a studio in your hand“ AppPicker Detailed Product Information • 15 diverse rock and metal styles in tempo order: 70s Slow Progressive; 90s Half-Time Grunge; 90s Progressive Metal; Red Hot Funk; 70s Progressive; UK Modern Alternative; 80s RnB Rock; Modern Groove Metal; 90s Half-Time Thrash; Heavy Metal Gallop; 80s Thrash; New Half-Time Thrash; Modern US Alternative; 80s Double-Time Heavy; 80s Heavy Triplets • Tempos from 80bpm to 190bpm • 10 chord variations for every root note in all 15 styles: maj; min; sus2; sus4; b5; 5; #5; 7(#9); maj7; 7 • Each of the 15 styles includes 15 alternative drum grooves and drum fills in addition to the 'main' drum pattern for that style • The exclusive musical content in this app is not duplicated on any of the other SessionBand apps • All loops are offered royalty-free and can be used freely in your own works

About

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.

Highlights
  • 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
Read full description

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.

Screenshots

SessionBand Rock 14 screens

Verdict

The call

The clearest difference is rating: SynthMaster 2 at 4.8 against SessionBand Rock 1's 3.9. SynthMaster 2 also leads on update cadence (every 3 weeks vs every 5 months) and ratings volume (474 vs 40). SessionBand Rock 1's advantage is in-app purchases (none vs 32) and ads (none vs shown). On review sentiment 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

CostPrice · In-app purchases · Ads · Monetization

SessionBand Rock 1 costs $8.99 and SynthMaster 2 $14.99 up front. SynthMaster 2 sells 32 one-off in-app purchases. SessionBand Rock 1 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SynthMaster 2 holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: SynthMaster 2 has 474 ratings behind it against 40, so its average is the more settled of the two. Written reviews point the same way: 63% of SessionBand Rock 1's written reviews are positive against 68% of SynthMaster 2's.

UpkeepUpdate frequency

SessionBand Rock 1 ships an update every 5 months, SynthMaster 2 every 3 weeks. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.

Scorecard9 real differences · 1 level
SessionBand Rock 1 versus SynthMaster 2: the parameters behind the verdict, then further details
ParameterSessionBand Rock 1SynthMaster 2
Price$8.99 — better$14.99
Rating3.9 (40 ratings)4.8 (474 ratings) — better
Positive reviews62.5% of reviews68.5% of reviews — better
Number of ratings40474 — better
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS12.0 — better15
Further details — not scored
Size827 MB918 MB
Age rating4+4+
DeveloperUK Music Apps LtdKV331 Audio

Customer experience

SessionBand Rock 1

All ratings40 ratings
Positive72.5%
Neutral5.0%
Negative22.5%
Written reviews80 reviews
Positive62.5%
Neutral5.0%
Negative32.5%

SynthMaster 2

All ratings407 ratings
Positive94.3%
Neutral2.2%
Negative3.4%
Written reviews111 reviews
Positive68.5%
Neutral16.2%
Negative15.3%

Bugs and requests

SessionBand Rock 1

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

SessionBand Rock 1

No in-app purchases

32 purchases

SynthMaster 2

One-time32
  • BigTone Tableworks Vol.2$1.99
  • Burak Yeter Synth Sounds Vol1$1.99
  • Aiyn Zahev Expansion 1$1.99
Show 29 more
  • 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

Questions

Is SessionBand Rock 1 free?
SessionBand Rock 1 costs $8.99, with no in-app purchases.
Is SynthMaster 2 free?
SynthMaster 2 costs $14.99, and also offers in-app purchases.
Which has better reviews, SessionBand Rock 1 or SynthMaster 2?
SynthMaster 2 is rated higher. SessionBand Rock 1 averages 3.9 out of 5 from 40 ratings, while SynthMaster 2 averages 4.8 from 474 ratings.
Do SessionBand Rock 1 or SynthMaster 2 have ads?
SynthMaster 2 shows ads; SessionBand Rock 1 does not.
Which is updated more often, SessionBand Rock 1 or SynthMaster 2?
SessionBand Rock 1 ships an update every 5 months, and SynthMaster 2 every 3 weeks. Most recently, SessionBand Rock 1 was updated on October 23, 2026 and SynthMaster 2 on October 27, 2026.

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