TfxReverb vs Mantis
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TfxReverb
This audio plugin generates digital reverb effects using a unique algorithm. It offers simple operation with an auto-size mode that adjusts parameters with a single dial, and features delay lines inspired by vintage bucket brigade devices for creative pitch-shifting.
- AudioUnit Extension plugin
- BBD-inspired delay lines
- Adjustable input filters
- LFO modulation
- Tempo sync
- Auto size mode
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TfxReverb is a reverb effect AudioUnit Extension plugin. It uses algorithm to generate digital reverb sound. TfxReverb is designed for simple and easy operation. When auto size mode is enabled, number of parameters can be controlled by a single dial to adjust size of the reverb sound, which can be synced to tempo. It features delay lines which are inspired by BBD (bucket brigade device). 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 unit. Features AudioUnit Extension - Input lowpass filter: From 1KHz to 20KHz - Input high-pass filter: From 20Hz to 500Hz - LFO Frequency: From 0.01Hz to 10Hz - LFO Intensity: From 0.0 to 1.0 - Pre Delay: From 1ms to 100ms - Size: From 0% to 100% - Auto size mode: On / Off - Decay: From 0% to 100% - Damp: From 0% to 100% - Output Lowpass Filter: From 1KHz to 20KHz - Early/Late Mix: From 0% to 100% - Dry/Wet Mix: From 0% to 100% - Tempo Sync: On / Off - Tempo (manual) : From 1bpm to 999bpm - Effect Switch: On / Off Host Application Host application uses system audio input as an audio source and processed audio signal is routed to the system audio output.
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.
- 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
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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
Verdict
The clearest difference is price: TfxReverb at $4.99 against Mantis's $14.99. Mantis's advantage is rating (5.0 vs 4.5). On ratings volume, 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
TfxReverb costs $4.99 and Mantis $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Mantis holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 8 and 8 respectively.
TfxReverb ships an update every 10 months, Mantis every 9 months. The most recent releases landed on September 20, 2026 and September 10, 2026 respectively.
| Parameter | TfxReverb | Mantis |
|---|---|---|
| Price | $4.99 — better | $14.99 |
| Rating | 4.5 (8 ratings) | 5.0 (8 ratings) — better |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 8 | 8 |
| Update frequency | Every 10 months | Every 9 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.6 — better | 14.0 |
| Further details — not scored | ||
| Size | 2 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryo Togawa | AudioThing Ltd. |
Customer experience
TfxReverb
Mantis
In-app purchases
TfxReverb
No in-app purchases
Mantis
No in-app purchases









