Comparison

TfxMod vs Mantis

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

Head to head
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.

About

Mantis

This audio plugin emulates a vintage 70s analog delay/echo unit, offering a warm, authentic sound. It features four echo taps, swell selectors, and a unique modulation section for chorus-like effects.

Highlights
  • Emulates rare 70s BBD delay/echo
  • Warm analog sound
  • Four echo taps
  • Four swell selectors
  • Rotafaze modulation section
  • Mimics tape echo wow/flutter
  • Chorus-delay effect
Features
Read full description

Mantis is a plugin that emulates a rare BBD (bucket-brigade device) delay/echo unit of the 70s, faithfully recreating its warm and analog sound. Available as AUv3 and Standalone. As the original unit, Mantis features an echo section with four taps and four swell selectors. It also features the rotafaze section, a modulation that can mimic the wow/flutter of a tape echo or turn the unit into a unique chorus-delay.

Screenshots

TfxMod4 screens
Mantis1 screens

Verdict

The call

The clearest difference is price: TfxMod at $4.99 against Mantis's $14.99. TfxMod also leads on update cadence (every 3 months vs every 9 months). Mantis's advantage is rating (5.0 vs 4.8). 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

TfxMod costs $4.99 and Mantis $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Mantis holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 6 and 8 respectively.

UpkeepUpdate frequency

TfxMod ships an update every 3 months, Mantis every 9 months. The most recent releases landed on September 20, 2026 and September 10, 2026 respectively.

Scorecard3 real differences · 7 level
TfxMod versus Mantis: the parameters behind the verdict, then further details
ParameterTfxModMantis
Price$4.99 — better$14.99
Rating4.8 (6 ratings)5.0 (8 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings68 — better
Update frequencyEvery 3 months — betterEvery 9 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.6 — better14.0
Further details — not scored
Size1 MB10 MB
Age rating4+4+
DeveloperRyo TogawaAudioThing Ltd.

Customer experience

TfxMod

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

Mantis

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

TfxMod

No in-app purchases

None

Mantis

No in-app purchases

Questions

Is TfxMod free?
TfxMod costs $4.99, with no in-app purchases.
Is Mantis free?
Mantis costs $14.99, with no in-app purchases.
Which has better reviews, TfxMod or Mantis?
Mantis is rated higher. TfxMod averages 4.8 out of 5 from 6 ratings, while Mantis averages 5.0 from 8 ratings.
Do TfxMod or Mantis have ads?
Neither TfxMod nor Mantis shows ads.
Which is updated more often, TfxMod or Mantis?
TfxMod ships an update every 3 months, and Mantis every 9 months. Most recently, TfxMod was updated on September 20, 2026 and Mantis on September 10, 2026.

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