Arctic ProSynth vs BTS FX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Arctic ProSynth
Create bold and tough electronic music with a modern subtractive synthesizer. Explore rich sound design with powerful oscillators, dual filters, and versatile effects. Record and share your creations easily.
- HyperOscillators for fat sounds
- Dual multi-mode filters
- Master effects with adjustable order
- Integrated Vocoder
- 16x4 gated step sequencer
- Live audio and MIDI recording
- Preset and bank sharing
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Be rude. Be rough. Be bold. Be tough! Arctic Pro Synthesizer / Vocoder is a modern subtractive synthesizer. It does not aim to accurately model or re-create vintage synths of yesteryear. Instead Arctic Pro offers the contemporary synthesist a rude, rough, bold and tough palette of sound to get stuck into. Including two massively fat HyperOscillators, dual filters, and easy to re-order master effects. While the Vocoder, used in conjunction with a suitable microphone, adds an extra dimension to your musical performance. HyperOscillators =========== Combine two HyperOscillators and one Sub Oscillator for some seriously fat sounds. Layer up to 8 oscillators in unison to create very thick and powerful tones. Spread detune and Mix these separate oscillators in real-time. More than just a "SuperSaw" - it's also a Super-square and Super-triangle. Powerful Presets =========== Legendary sound designer John ‘Skippy’ Lehmkuhl has exclusively designed the factory presets. John has worked as a professional sound designer since 1988 for Korg - making patches, combinations, drum kits as well as creating the sample data for almost every synth Korg has released since the M1. If you have owned one of these historic synthesizers you have heard John's presets. Sharing ===== Arctic Pro includes everything you need to record and share your audio and MIDI with others. Live record to WAV and MIDI files. Use AudioCopy, open audio directly in apps, or share with Kymatica AudioShare. Presets and Banks can be emailed and transferred via Wi-Fi and iTunes Files Sharing. And of course we also support Audiobus. SPECIFICATION ========== • Synthesis: analog modelling • Polyphony: up to 4 voices • HyperOscillators: 2 per voice, alias free, saw, triangle and square with pulse width, hard sync, ring mod, noise generator, sub-oscillator • Filter: 2 multi-mode resonating filter with 4 filter types and variable routing • Envelopes: mod, filter and amp ADSR envelopes with adjust curve • Modulation: 2 LFOs with multiple wave shapes, sample and hold, 3 routable destinations per LFO, independently sync-able • Effects: stereo master effect processors with adjustable order: 3-band EQ, Distortion, Chorus, Phaser, Vocoder, Delay, Reverb • Arpeggiator: classic arpeggiator with octave shift, MIDI-sync-able • Sequencer: 16 x 4 gated step sequencer with multiple modulation destinations, MIDI-sync-able • Keyboard: glissando, scroll, multi-touch poly pitch bend and aftertouch • Works with Wizdom Music's Geo Synthesizer continuous pitch bend • Polyphonic Aftertouch for use with CME Xkey FEATURES ======== • Inter-App Audio for iOS 7 • Audiobus • AudioCopy 2.0 • MIDI Learn • Live phrase recorder with audio and MIDI export • File and patch sharing via iTunes File Sharing, e-mail and Wi-Fi • Supports external MIDI in and out via CoreMIDI Networking and USB with the Camera Connection Kit • Audio background operation • Virtual MIDI Ports • Open Music App Collaboration compliant Requirements: iPad 2 or later recommended iOS 7.0 or later
BTS FX
This audio effect plugin offers a versatile multi-effect suite for music production. It features a bitcrusher, distortion, reverb with a freeze function, and a limiter, all controllable within compatible DAWs.
- Bitcrusher with adjustable rate and bit
- Distortion module with various algorithms
- Reverb module with freeze function
- Brick-wall limiter
- Oversampling module (2x, 4x, 8x)
- Stereo/Mode processing
- Parameter randomizer
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BTS FX emerges as a dynamic multi-effect plugin, incorporating a diverse set of modules. Available on as Auv3 audio effect or can be loaded in IAA. App requires compatible Auv3 or IAA host (DAW) to load an effect. Among its Main features are: Pre/Post Moog Ladder Filter Bitcrusher with adjustable Rate and Bit controls Distinctive Distortion Module offering various reshaping algorithms. The plugin boasts a lush Reverb Module with a unique Freeze function , complemented by a Brick-wall Limiter Module and convenient Input/Output Gain adjustments. Additionally the Oversampling module provides 2x, 4x, and 8x factors, featuring both polyphase allpass IIR and FIR versions with latency compensation. Further enhancing its capabilities, BTS includes Stereo/Mode processing and a Parameter Randomiser for added creative exploration. Preset Manager, etc.
Screenshots
Verdict
The clearest difference is rating: BTS FX at 5.0 against Arctic ProSynth's 3.3. BTS FX also leads on update cadence (every 2 days vs every 4 months) and chart position (#197 vs unranked). On price, ratings volume, ads and in-app purchases 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
Arctic ProSynth costs $9.99 and BTS FX $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
BTS FX holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 8 and 3 respectively.
Arctic ProSynth ships an update every 4 months, BTS FX every 2 days. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Arctic ProSynth | BTS FX |
|---|---|---|
| Price | $9.99 | $9.99 |
| Rating | 3.3 (8 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | 8 — better | 3 |
| Update frequency | Every 4 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #197 — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 47 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | One Red Dog Media | Dmytro Kiro |
Customer experience
Arctic ProSynth
BTS FX
In-app purchases
Arctic ProSynth
No in-app purchases
BTS FX
No in-app purchases







