Pure Synth® Platinum is a full-blown rompler/synthesizer for your iOS device. Neither the synth engine or the sample engine is an afterthought: Both engines are fully capable and feature-rich. The romper section contains a well rounded assortment of analog, synth, string, digital, and acoustic instruments.
| Price | Free |
|---|---|
| Author | MIDIculous LLC |
| Type | Instrument |
| Instrument type | Sampler, Synth |
| Instrument sounds | Keyboards, All-in-one |
| Supports | Inter-App Audio (IAA), Audio Unit (AU) |
| Rating | total: (45), current: (45) |
| Released | 06/11/2019 |
| Updated | 10/01/2025 |
Steel Guitar PRO is a guitar processor that combines cutting-edge realtime audio generation with control interface. It provides guitar models, built-in amps & FX processing, MIDI control, AUv3, and good customizability.
| Price | $9.99 |
|---|---|
| Author | Yonac Inc. |
| Type | Effect |
| Effect type | Guitar effects |
| Supports | Audio Unit (AU) |
| Rating | total: (61), current: (61) |
| Released | 06/23/2022 |
| Updated | 07/08/2022 |
ToneBoosters Reverb is a studio-quality reverberation plug-in.
| Price | $8.99 |
|---|---|
| Author | ToneBoosters |
| Type | Effect |
| Effect type | Reverb, Delay, Echo |
| Supports | Inter-App Audio (IAA), Audio Unit (AU) |
| Rating | total: (52), current: (52) |
| Released | 08/13/2019 |
| Updated | 09/30/2025 |
Thanks to it's true VA synthesis engine, the use of analog-modelled non-linear filters and extensive modulation options, Flowtones sounds warmer and more analog than digital romplers and wavetable-based synths.
| Price | $9.99 |
|---|---|
| Author | ToneBoosters |
| Type | Instrument |
| Instrument type | Synth |
| Instrument sounds | Keyboards |
| Supports | Inter-App Audio (IAA), Audio Unit (AU) |
| Rating | total: (36), current: (36) |
| Released | 08/10/2021 |
| Updated | 09/29/2025 |
Harness the enormous power of 8 polyphonic synths: meet KASPAR Supersynthesizer.
| Price | $19.99 |
|---|---|
| Author | Yonac Inc. |
| Type | Instrument |
| Instrument type | Synth |
| Instrument sounds | Keyboards |
| Supports | Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link |
| Rating | total: (91), current: (91) |
| Released | 07/20/2017 |
| Updated | 11/03/2018 |
Galileo Organ 2 is a tonewheel and transistor organ app.
| Price | $14.99 |
|---|---|
| Author | Yonac Inc. |
| Type | Instrument |
| Instrument type | Synth |
| Instrument sounds | Keyboards |
| Supports | Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link |
| Rating | total: (92), current: (92) |
| Released | 07/27/2018 |
| Updated | 02/13/2022 |
ToneStack PRO is a guitar effects processor.
| Price | $9.99 |
|---|---|
| Author | Yonac Inc. |
| Type | Effect |
| Effect type | Guitar effects |
| Supports | Audio Unit (AU) |
| Rating | total: (76), current: (76) |
| Released | 04/26/2021 |
| Updated | 05/12/2025 |
Roxsyn is a metamorphic guitar synthesizer.
| Price | $19.99 |
|---|---|
| Author | Yonac Inc. |
| Type | Instrument |
| Instrument type | Synth |
| Instrument sounds | Guitar |
| Supports | Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link |
| Rating | total: (88), current: (88) |
| Released | 08/05/2019 |
| Updated | 11/14/2024 |
Yonac’s flagship Magellan Synthesizer 2 is a new alchemy of pristine sounds, innovative features, and devotion to user friendliness — all the same preserving the wicked soul of the original.
| Price | $14.99 |
|---|---|
| Author | Yonac Inc. |
| Type | Instrument |
| Instrument type | Synth |
| Instrument sounds | Keyboards |
| Supports | Audio Unit (AU), Ableton Link |
| Rating | total: (123), current: (123) |
| Released | 02/23/2020 |
| Updated | 01/20/2022 |
Kauldron is a synth with new modeling technology, combined with features help you create aggressive synth sounds full of rich analog textures with the fewest knob tweaks.
| Price | $9.99 |
|---|---|
| Author | Yonac Inc. |
| Type | Instrument |
| Instrument type | Synth |
| Instrument sounds | Keyboards |
| Supports | Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link |
| Rating | total: (134), current: (134) |
| Released | 11/15/2017 |
| Updated | 02/13/2022 |
ToneBoosters Barricade is a peak limiter and compressor.
| Price | $8.99 |
|---|---|
| Author | ToneBoosters |
| Type | Effect |
| Effect type | Compressor, Limiter, Gate |
| Supports | Inter-App Audio (IAA), Audio Unit (AU) |
| Rating | total: (28), current: (28) |
| Released | 09/17/2019 |
| Updated | 09/28/2025 |
ToneBoosters Spectrogram shows a real-time spectrogram of the incoming audio signal. The ToneBoosters Spectrogram app captures the microphone input and processes the signals in real time.
| Price | Free |
|---|---|
| Author | ToneBoosters |
| Type | Tool |
| Supports | Inter-App Audio (IAA), Audio Unit (AU) |
| Rating | total: (39), current: (39) |
| Released | 09/08/2020 |
| Updated | 09/28/2025 |
The EQ550 faithfully captures the punch, low-frequency transparency, and ultra-tight imaging of iconic American EQs of the late 1960’s.
| Price | Free |
|---|---|
| Author | RRS, OOO |
| Type | Effect |
| Effect type | Equalizer, Filter |
| Supports | Audio Unit (AU) |
| Rating | total: (11), current: (11) |
| Released | 04/10/2020 |
| Updated | 09/26/2025 |
Kleverb is an algorithmic reverb effect.
| Price | $19.99 |
|---|---|
| Author | Klevgränd produkter AB |
| Type | Effect |
| Effect type | Reverb, Delay, Echo |
| Supports | Audio Unit (AU) |
| Rating | total: (13), current: (13) |
| Released | 10/31/2018 |
| Updated | 09/17/2021 |
Shape your sound with advanced equalising to make your tracks fit in the mix.
| Price | $19.99 |
|---|---|
| Author | Klevgränd produkter AB |
| Type | Effect |
| Effect type | Equalizer, Filter |
| Supports | Audio Unit (AU) |
| Rating | total: (14), current: (14) |
| Released | 08/27/2018 |
| Updated | 03/09/2021 |
DAW LP is an Audio Unit effect that emulates the sound of a vinyl disc (and player).
| Price | $13.99 |
|---|---|
| Author | Klevgränd produkter AB |
| Type | Effect |
| Effect type | Distortion, Drive etc., Other |
| Supports | Audiobus, Audio Unit (AU) |
| Rating | total: (7), current: (7) |
| Released | 07/03/2018 |
| Updated | 03/13/2023 |
Velocity Keyboard is a powerful velocity-sensitive MPE compatible MIDI controller.
| Price | $9.99 |
|---|---|
| Author | Blue Mangoo Consulting Company Limited |
| Type | Controller |
| Supports | Audio Unit (AU) |
| Rating | total: (98), current: (98) |
| Released | 05/08/2019 |
| Updated | 09/24/2025 |
Modley is a modulation delay with effect insert capabilities, which lets you design the whole delay signal with several carefully selected effect modules, to create customized signal flows and unique sounds.
| Price | $16.99 |
|---|---|
| Author | Klevgränd produkter AB |
| Type | Effect |
| Effect type | Reverb, Delay, Echo, Modulation effects |
| Supports | Audio Unit (AU) |
| Rating | total: (22), current: (22) |
| Released | 06/18/2019 |
| Updated | 02/25/2021 |
MultitrackStudio for iPad is an audio/MIDI multitrack recording app. It comes with many high quality audio effects including a guitar amp simulator.
| Price | $29.99 |
|---|---|
| Author | Giel Bremmers |
| Type | Host |
| Supports | Inter-App Audio (IAA), Audiobus, Audio Unit (AU) |
| Rating | total: (28), current: (28) |
| Released | 01/06/2014 |
| Updated | 09/18/2025 |
TTAP for iOS is an AUv3 delay effect inspired both by adventures with analog tape and by otherworldly textural effects only possible in the digital world.
| Price | $3.99 |
|---|---|
| Author | K-Devices |
| Type | Effect |
| Effect type | Reverb, Delay, Echo |
| Supports | Audio Unit (AU) |
| Rating | total: (23), current: (23) |
| Released | 06/29/2020 |
| Updated | 09/02/2020 |