Comparison

Tera Synth vs TfxMod

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

Head to head
About

Tera Synth

Create unique sounds beyond traditional synthesizers with a modular analog and digital synthesis workstation. Combine physical modeling, wireless patching, and built-in effects for a fat, individual sound. Features a programmable arpeggiator and live playing options.

Highlights
  • Modular analog and digital synthesis
  • Physical modeling modules
  • Wireless patching and modulation routing
  • Built-in distortion, delay, chorus, phaser, and reverb effects
  • Programmable arpeggiator
  • Live playing with onscreen keyboard and MIDI support
  • Audiobus and Inter-App-Audio integration
Read full description

Tera Synth - Modular Analog Synthesizer Explore new sound spaces with Tera Synth that go beyond the emulation of synthesizer legends. Use the power of analog and digital synthesis combined with new modules for physical modelling. Wireless patching of modules combined with an intelligible modulation routing simplifies the development of new synthesizer designs from scratch. Distortion effect, Delay/Chorus/Phaser and Reverb effects give your sounds the final polishing. Tera Synth gives your music an individual character with its unique fat sound. The well-designed algorithms and the economical modular structure provides you with a comparatively high voice yield. Precise timing with the unique built-in Arpeggiator let you feel the rhythm. Tera Synth supports Audiobus and Inter-App-Audio for integration with other Music Apps. Modular Analog Synthesis • Modular synthesizer with free connections between modules. • 25 Sound Modules • 4 Low frequency oscillators • 4 Standard ADSR Envelope generators. • 4 Multi Segment Envelopes with tempo sync. • 64 time/level segments per envelope • Monophonic or polyphonic with up to 32 voices. • More than 920 factory presets, unlimited user presets can be shared. FX • Chorus with four delay lines. • 8 pole Analog Phaser. • Distortion effect with Tube/Tape emulation • Stereo Echo/Delay effect. • Hi end reverberation unit. Live • Play melodies live with the onscreen keyboard. Drag fingers for slides and vibrato. • Optionally use CoreMIDI* compatible hardware keyboard. • Dozens of scales selectable • Variable Keyboard layout for scale optimized playing Full featured programmable Arpeggiator • Uses programmable sequences with up to 32 steps. • Can trigger single notes and chords. • Unique randomizer generates Arpeggios with 100% usability. • 32 Arpeggios included, unlimited useer arpeggios possible. • For each step you can program tie, accent, transposition and note order Global • Audiobus 3 compatible (Input slot) with Preset saving. • Inter App Audio • AudioUnit AUv3 with parameter automation • Ableton Link compatible • Audio pasteboard. Copy audio recordings to Clipboard for use with other Apps • Exchange user presets with File Sharing in iTunes. • Support for MIDI input/output connections. • MIDI learn functionality.

About

TfxMod

This app provides a chorus and flanger audio effect plugin for mobile devices. It emulates the sound of vintage bucket brigade devices with adjustable parameters for delay, feedback, and modulation. It can be used with host applications to process audio input.

Highlights
  • Chorus and flanger effects
  • BBD-inspired delay lines
  • Adjustable delay time, feedback, and modulation
  • Variable LFO rate and waveform
  • Low-pass and high-pass filters
  • Stereo width control
Features
Read full description

TfxMod is a chorus / flanger effect AudioUnit Extension plugin. It uses delay lines which are inspired by BBD (bucket brigade device). The delay line is identical to the delay line of the TfxEcho except its buffer length. The delay line uses fixed length buffer and an artificial clock to sample input signal in variable sampling rate. When the delay time is changed, the delay line can produce pitch change effect which is similar to the behavior of the BBD based chorus / flanger unit. Features AudioUnit Extension Chorus Effect - Delay Time: From 1 ms to 40 ms - Feedback: 0% - Modulation width: From 0 ms to +/- 1 ms Flanger Effect - Modulation Mode: mode1, mode2, and mode3 - Delay Time: From 1 ms to 20 ms (mode1&2), From 1 ms to 13 ms (mode3) - Feedback: From 0 % to 100 % - Modulation width: From 0 ms to 39 ms (mode1), From 0 ms to 19 ms (mode2), From 0 ms to 12 ms (mode3) Common - Adjustable lowpass filter and high-pass filter. - Modulation rate: From 0.01 Hz to 10 Hz - LFO Frequency can be synced to the tempo provided by the host application. - LFO Waveform: Continuously variable from sine wave to triangle wave. - Stereo Width: LFO Phase offset from 0 degree to 180 degree. Host Application - Host application uses system audio input as an audio source and processed audio signal is routed to the system audio output.

Screenshots

TfxMod4 screens

Verdict

The call

Tera Synth and TfxMod both sit at 4.8 stars, but that hides the real split: 100% of TfxMod's written reviews are positive against 86% of Tera Synth's. TfxMod also leads on device support (3 vs 1). Tera Synth's advantage is price ($1.99 vs $4.99) and ratings volume (27 vs 6). On rating, update cadence, 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

Tera Synth costs $1.99 and TfxMod $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Tera Synth against 4.8 for TfxMod. Both are backed by a comparable volume of ratings — 27 and 6 respectively. Written reviews are what separate them: 86% of Tera Synth's written reviews are positive against 100% of TfxMod's.

UpkeepUpdate frequency

Tera Synth ships an update every 4 months, TfxMod every 3 months. Both last shipped on October 7, 2026.

Scorecard4 real differences · 6 level
Tera Synth versus TfxMod: the parameters behind the verdict, then further details
ParameterTera SynthTfxMod
Price$1.99 — better$4.99
Rating4.8 (27 ratings)4.8 (6 ratings)
Positive reviews86.4% of reviews100.0% of reviews — better
Number of ratings27 — better6
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPadiPhone, iPad, iPod — better
Requires iOS12.0 — better13.6
Further details — not scored
Size36 MB1 MB
Age rating4+4+
DeveloperHarry GohsRyo Togawa

Customer experience

Tera Synth

All ratings27 ratings
Positive96.3%
Neutral3.7%
Negative0.0%
Written reviews44 reviews
Positive86.4%
Neutral11.4%
Negative2.3%

TfxMod

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Tera Synth

No in-app purchases

None

TfxMod

No in-app purchases

Questions

Is Tera Synth free?
Tera Synth costs $1.99, with no in-app purchases.
Is TfxMod free?
TfxMod costs $4.99, with no in-app purchases.
Which has better reviews, Tera Synth or TfxMod?
Tera Synth and TfxMod are both rated 4.8 out of 5 on the App Store, from 27 and 6 ratings respectively.
Do Tera Synth or TfxMod have ads?
Neither Tera Synth nor TfxMod shows ads.
Which is updated more often, Tera Synth or TfxMod?
Tera Synth ships an update every 4 months, and TfxMod every 3 months. Most recently, Tera Synth was updated on October 7, 2026 and TfxMod on October 7, 2026.

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