Comparison

Arctic ProSynth vs TerribleSync

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

Head to head
About

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.

Highlights
  • 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
Read full description

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

About

TerribleSync

Control the tempo of music hardware like synthesizers and drum machines using your iPhone or iPad. Features include tap tempo, precise dial adjustment, and buttons for performance effects. Requires a 3.5mm audio cable for connection.

Highlights
  • Tap tempo
  • Rotary tempo dial
  • Pause/mute button
  • Performance effect buttons
  • Clear interface
  • Open source project
Features
Read full description

Use your iPhone or iPad to control the tempo of impulse-sync-enabled synthesizers, drum machines, and other music hardware. Features: • Tap tempo • Supports 20.0 - 999.0+ BPM • Rotary tempo dial for precise, tactile tempo adjustment • Pause/mute button • ?, !, and :fire: buttons to introduce character and chaos into your performance • Clear, simple interface designed to be easy to use in a stage/performance setting This app works with any instrument you own that takes voltage impulses as a tempo control, such as: • KORG SQ-1, Volca, Monotribe, etc. • Teenage Engineering Pocket Operator • Moog MOTHER-32 (choose the "single clock advance" setting on the instrument) This project is open source. Try building it yourself at https://github.com/terribleben/terrible-sync or contact twitter.com/terribleben with feedback! Notes: • 3.5mm audio cable is required to connect your iPhone or iPad to your sync-enabled instruments. • If the instrument isn't responding, you may need to increase the iPhone's volume. • This software is not produced by, endorsed by, or affiliated with KORG, Teenage Engineering, Moog Music, or other instrument manufacturers.

Screenshots

TerribleSync1 screens

Verdict

The call

The clearest difference is price: TerribleSync at Free against Arctic ProSynth's $9.99. TerribleSync also leads on rating (4.0 vs 3.3) and review sentiment (83% vs 71%). Arctic ProSynth's advantage is update cadence (every 4 months vs every 35 months). On 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

CostPrice · In-app purchases · Ads · Monetization

TerribleSync is free to download; Arctic ProSynth costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

TerribleSync holds the better App Store score, 4.0 against 3.3. Both are backed by a comparable volume of ratings — 8 and 4 respectively. Written reviews point the same way: 71% of Arctic ProSynth's written reviews are positive against 83% of TerribleSync's.

UpkeepUpdate frequency

Arctic ProSynth ships an update every 4 months, TerribleSync every 35 months. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

Scorecard7 real differences · 3 level
Arctic ProSynth versus TerribleSync: the parameters behind the verdict, then further details
ParameterArctic ProSynthTerribleSync
Price$9.99Free — better
Rating3.3 (8 ratings)4.0 (4 ratings) — better
Positive reviews71.4% of reviews83.3% of reviews — better
Number of ratings8 — better4
Update frequencyEvery 4 months — betterEvery 35 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPadiPhone, iPad, iPod — better
Requires iOS15.612.0 — better
Further details — not scored
Size47 MB1 MB
Age rating4+4+
DeveloperOne Red Dog Media Pty LtdBenjamin Roth

Customer experience

Arctic ProSynth

All ratings8 ratings
Positive50.0%
Neutral12.5%
Negative37.5%
Written reviews28 reviews
Positive71.4%
Neutral3.6%
Negative25.0%

TerribleSync

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

In-app purchases

None

Arctic ProSynth

No in-app purchases

None

TerribleSync

No in-app purchases

Questions

Is Arctic ProSynth free?
Arctic ProSynth costs $9.99, with no in-app purchases.
Is TerribleSync free?
TerribleSync is free to download, with no in-app purchases.
Which has better reviews, Arctic ProSynth or TerribleSync?
TerribleSync is rated higher. Arctic ProSynth averages 3.3 out of 5 from 8 ratings, while TerribleSync averages 4.0 from 4 ratings.
Do Arctic ProSynth or TerribleSync have ads?
Neither Arctic ProSynth nor TerribleSync shows ads.
Which is updated more often, Arctic ProSynth or TerribleSync?
Arctic ProSynth ships an update every 4 months, and TerribleSync every 35 months. Most recently, Arctic ProSynth was updated on October 7, 2026 and TerribleSync on October 2, 2026.

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