Comparison

VoxSyn Pro vs Lines

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

Head to head
About

VoxSyn Pro

Transform your voice into a versatile sound generator with real-time pitch and spectral control. Explore a vast library of synthesizer sounds, expand them with a unique random generator, and create signature vocal effects beyond traditional vocoding. Compatible with AUv3 hosts for seamless integration into your music production workflow.

Highlights
  • Voice control of pitch and timbre
  • Mix original voice, synth carrier, and vocoded signal
  • 22-channel vocoder
  • Integrated preset synthesizer engine
  • Hundreds of presets
  • Hi-end effects suite
  • AUv3 compatible
Features
Read full description

VoxSyn Pro turns your voice into the most flexible vocal sound generator ever. Instantly following even subtle modulations of pitch and spectral changes of your voice VoxSyn Pro creates signature vocal sounds far beyond traditional vocoding. Talk or sing into the microphone and you’ll trigger various synthesizer sounds following your voice pitch or the notes touched on the hexagonal keyboard / external MIDI Keyboard. The basic sounds are selected from a vast pool of predefined sounds from the famous TERA synthesis engine which can be further expanded by its unique random sound generator. The harmonic table note layout visualises your voices pitch in realtime and also let you play notes for more traditional vocoder effects. VoxSyn Pro is AUv3 compatible and can be used in AU Host apps like Garageband, Cubasis, AUM and many more. Important: Users of VoxSyn should wait for the App bundle to save money. Features: - Voice control of pitch and timbre - Free Mix of original voice, synthesizer carrier and vocoded signal. - 22-channel Vocoder - Integrated preset synthesizer engine - Hundreds of presets included - Hi-end Reverb and Chorus/Delay/Distortion/Phaser effects - Share/Export of audio recordings - CoreMIDI / Virtual MIDI and Background audio - Inter App Audio compatible - AUv3 AudioUnit with parameter automation - Audiobus 3 support (Input/Filter/Output) with state saving

About

Lines

This audio effect plugin transforms any signal into a wide spectrum of sounds, from lo-fi to distortion and feedback. It can also function as an experimental synthesizer, creating rhythms and soundscapes even without input.

Highlights
  • Creative signal mangling
  • Experimental synthesizer
  • Feedback-based sound design
  • Wide range of audio effects
  • Rhythm and soundscape generation
Features
Read full description

Lines is an effect plugin that crosses borders: it can be used as a creative mangler of all kinds of signals, ranging from lo-fi telephone sounds, lush phasing, warm distortions, crushing feedback, ring modulation and unique frequency shifting. But even without any input, it can be an experimental synthesizer based on feedback, allowing for a wide range of inspiring rhythms, pulses, and organic soundscapes. If you combine input and internal engines an unheard spectrum of sounds appears.

Screenshots

VoxSyn Pro3 screens
Lines1 screens

Verdict

The call

The clearest difference is review sentiment: Lines at 100% against VoxSyn Pro's 20%. Lines also leads on rating (5.0 vs 3.4). VoxSyn Pro's advantage is price ($1.99 vs $19.99) and update cadence (every 2 months vs every 13 months). On ratings volume, 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

VoxSyn Pro costs $1.99 and Lines $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Lines holds the better App Store score, 5.0 against 3.4. Both are backed by a comparable volume of ratings — 14 and 12 respectively. Written reviews point the same way: 20% of VoxSyn Pro's written reviews are positive against 100% of Lines's.

UpkeepUpdate frequency

VoxSyn Pro ships an update every 2 months, Lines every 13 months. Both last shipped on November 7, 2026.

Scorecard4 real differences · 6 level
VoxSyn Pro versus Lines: the parameters behind the verdict, then further details
ParameterVoxSyn ProLines
Price$1.99 — better$19.99
Rating3.4 (14 ratings)5.0 (12 ratings) — better
Positive reviews20.0% of reviews100.0% of reviews — better
Number of ratings14 — better12
Update frequencyEvery 2 months — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size43 MB29 MB
Age rating4+4+
DeveloperHarry GohsAudioThing Ltd.

Customer experience

VoxSyn Pro

All ratings14 ratings
Positive50.0%
Neutral21.4%
Negative28.6%
Written reviews15 reviews
Positive20.0%
Neutral20.0%
Negative60.0%

Lines

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

VoxSyn Pro

No in-app purchases

None

Lines

No in-app purchases

Questions

Is VoxSyn Pro free?
VoxSyn Pro costs $1.99, with no in-app purchases.
Is Lines free?
Lines costs $19.99, with no in-app purchases.
Which has better reviews, VoxSyn Pro or Lines?
Lines is rated higher. VoxSyn Pro averages 3.4 out of 5 from 14 ratings, while Lines averages 5.0 from 12 ratings.
Do VoxSyn Pro or Lines have ads?
Neither VoxSyn Pro nor Lines shows ads.
Which is updated more often, VoxSyn Pro or Lines?
VoxSyn Pro ships an update every 2 months, and Lines every 13 months. Most recently, VoxSyn Pro was updated on November 7, 2026 and Lines on November 7, 2026.

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