Comparison

RSF2 vs SynthModule

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

Head to head
About

RSF2

Organize and manage your SoundFont 2 (.sf2) collection. Easily combine presets from multiple SoundFonts into new banks or split large files into individual instruments. All processing happens directly on your device for maximum privacy and security.

Highlights
  • Build themed banks in one tap
  • Reorder presets by drag and drop
  • Split giant SF2 files into parts
  • 100% on-device processing
  • Universal app for iPhone, iPad, and Mac
  • Works with popular samplers and DAWs
Features
Read full description

Is your SoundFont library out of control? You've got dozens — maybe hundreds — of .sf2 files scattered across iCloud, old folders and forgotten thumb drives. Every time you need a decent acoustic piano, you waste 15 minutes opening file after file in your sampler. Each bank has 20 presets but you only use 2. Rsf2 fixes that — once. HOW IT WORKS • BUILD THEMED BANKS IN ONE TAP Pull presets from 5 different SoundFonts and generate ONE .sf2 file containing only the ones you love. "My 10 Favorite Acoustic Pianos" with Steinway, Yamaha, Bösendorfer and Fazioli — all in one file, ready to load in your sampler. • REORDER PRESETS BY DRAG Visual edit mode: drag presets to dictate the exact MIDI order (bank:program) in the final file. Want Steinway D at program 0:0? Bösendorfer 290 at 0:1? You pick the sequence. • SPLIT GIANT SF2 INTO PARTS Bought a SoundFont with 30 instruments but only use 5? Split it in a tap into individual files — exactly the ones you want. WHY Rsf2 IS DIFFERENT • 100% ON YOUR DEVICE No cloud upload. No account. No cookies. No trackers. Your SoundFonts (many of which you PAID for) never leave your iPhone, iPad or Mac. • UNIVERSAL A single app for iPhone, iPad AND Mac. Buy on any device, install on the others for free. • WORKS WITH YOUR SAMPLER Cubasis, AUM, GarageBand, Logic Pro, Audiobus, FluidSynth, ROMpler, MIDI hardware — anything that speaks SoundFont 2. WHO IT'S FOR • Live keyboard players using an iPad on stage • Producers wanting clean libraries in their DAW • Sound designers recombining banks • Church studios, music schools • Composers and arrangers • Beatmakers sampling from SF2 ABOUT THE FORMAT SoundFont 2 (.sf2) is an open standard created by E-mu/Creative in 1995, still very much alive in hardware ROMplers, free plugins and mobile samplers. Rsf2 respects 100% of the spec. GET STARTED Tap "Add .sf2 files", point at a file in your iCloud Drive, mark the presets you love, name it, generate. That's it. Make your library a place where you can actually FIND things.

About

SynthModule

This app provides a professional-grade keyboard and synthesizer experience on your iPhone or iPad. It offers a versatile mixer, extensive sound import capabilities, and advanced features for live performance and music production.

Highlights
  • SoundFonts with custom import
  • 8-channel mixer with FX
  • Live Set for instant scene recall
  • Drum Pad with sample playback
  • AUv3 plugin hosting
  • MIDI Learn with LED sync
  • Low-latency audio
Features
Read full description

SynthModule — Teclado, Sintetizador e Controlador MIDI no seu iPhone e iPad Para tecladistas que tocam ao vivo, músicos de worship, produtores, estudantes de música e quem usa controlador MIDI — som de teclado profissional direto no celular ou tablet, sem depender de hardware caro. O QUE TEM NO APP • SoundFonts em categorias (Piano, Strings, Brass, Guitar, Organ, Pad, Drum, Synth e mais), com importação livre de SF2 próprio — use sua coleção sem limites. • Mixer de 8 canais com pan, mute/solo, ARM, FX por canal e fader master. • Live Set 4×4 para salvar cenas completas (instrumentos, FX, plugins AUv3, backing track e arpejador) e fazer recall instantâneo no meio do show. Até 2.048 presets (8 bancos × 16 páginas × 16 slots) — organize por gênero, show ou momento do set. • Drum Pad com 15 pads e 6 bancos para samples MP3/WAV de bateria, percussão e FX. • Pad Contínuo — muito usado em worship para sustentar uma nota durante toda a música. 4 camadas sobrepostas, filtro, corte, release, nota raiz e 5 presets. • Arpejador de 16 passos com BPM, taxa, gate e patterns editáveis. Salve no preset do Live Set e dispare pelo botão do arpejador. • Teclado completo (C-2 a C8) com pitch bend, modulation wheel e sustain. • Player MP3/WAV integrado para backing tracks dentro do preset. • Rack de FX completo: compressor VCA com sidechain, EQ de 3 bandas, reverb, delay, tremolo, ADSR, filtros LP/HP, portamento e rotary Leslie. • Host de plugins AUv3: carregue plugins de áudio e instrumentos de terceiros (Korg Module, NumaPlayer, AudioKit Pro, ROLI e muitos outros) dentro do app. As programações e presets de cada plugin AUv3 ficam salvos no Live Set Edit — chame uma cena e o plugin já volta exatamente com o som que você configurou, pronto pra tocar. • Mapeamento MIDI Learn: atribua qualquer botão, knob ou fader do seu controlador a volume, ARM, solo, FX, troca de preset e mais — com sincronização de LED (a luz do botão acende/apaga junto com o estado). • MIDI nativo via USB (com adaptador Lightning/USB-C), Bluetooth (BLE-MIDI) e Wi-Fi (RTP-MIDI / Network MIDI) — funciona com qualquer controlador. • 3 idiomas: Português, Inglês e Espanhol. REQUISITOS iPhone ou iPad com iOS 12 ou superior. Otimizado para iPad em modo paisagem. PRIVACIDADE O SynthModule não exige cadastro, não exibe anúncios e não compartilha seus dados. Seus presets e SoundFonts ficam apenas no seu dispositivo. Política de privacidade completa: https://synthmodule3.web.app/privacy SUPORTE Dúvidas, sugestões ou problemas? Escreva para suporte.synthmodule@gmail.com

Screenshots

RSF24 screens
SynthModule4 screens

Verdict

The call

The clearest difference is price: SynthModule at Free against RSF2's $3.99. SynthModule also leads on update cadence (every 2 days vs weekly) and iOS requirement (15.0 vs 17.0). RSF2's advantage is in-app purchases (none vs 1). On rating, review sentiment, ratings volume and ads 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

SynthModule is free to download; RSF2 costs $3.99 up front. SynthModule sells 1 one-off in-app purchase. RSF2 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for RSF2 against 5.0 for SynthModule. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

RSF2 ships an update weekly, SynthModule every 2 days. Both last shipped on November 5, 2026.

Scorecard4 real differences · 6 level
RSF2 versus SynthModule: the parameters behind the verdict, then further details
ParameterRSF2SynthModule
Price$3.99Free — better
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings11
Update frequencyWeeklyEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size2 MB111 MB
Age rating4+4+
DeveloperRubens Felicioisael lopes guimaraes

Customer experience

RSF2

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

SynthModule

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews15 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

RSF2

No in-app purchases

1 purchases

SynthModule

One-time1
  • SynthModule Pro$29.99

Questions

Is RSF2 free?
RSF2 costs $3.99, with no in-app purchases.
Is SynthModule free?
SynthModule is free to download, with in-app purchases available.
Which has better reviews, RSF2 or SynthModule?
RSF2 and SynthModule are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do RSF2 or SynthModule have ads?
Neither RSF2 nor SynthModule shows ads.
Which is updated more often, RSF2 or SynthModule?
RSF2 ships an update weekly, and SynthModule every 2 days. Most recently, RSF2 was updated on November 5, 2026 and SynthModule on November 5, 2026.

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