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: RSF2 at $4.99 against SynthModule's $29.99. SynthModule's advantage is update cadence (daily vs weekly) and iOS requirement (15.0 vs 17.0). On review sentiment, ads, in-app purchases and monetization model 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

RSF2 costs $4.99 and SynthModule $29.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

RSF2 ships an update weekly, SynthModule daily. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 7 level
RSF2 versus SynthModule: the parameters behind the verdict, then further details
ParameterRSF2SynthModule
Price$4.99 — better$29.99
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings1 — better—
Update frequencyWeeklyDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size2 MB94 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

Written reviews12 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

RSF2

No in-app purchases

None

SynthModule

No in-app purchases

Questions

Is RSF2 free?
RSF2 costs $4.99, with no in-app purchases.
Is SynthModule free?
SynthModule costs $29.99, with no in-app purchases.
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 daily. Most recently, RSF2 was updated on October 17, 2026 and SynthModule on October 8, 2026.

Other comparisons