TfxEcho vs WoodValvet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TfxEcho
This audio plugin offers a warm, dark echo effect inspired by analog delay units. It allows for adjustable delay times, feedback, and filters, with modulation capabilities and tempo syncing. The plugin captures high-frequency signals for a versatile sound.
- Echo and delay effect
- BBD-inspired delay lines
- Adjustable delay time (20-1200 ms)
- Feedback control (0-100%)
- Low-pass and high-pass filters
- Modulation rate and width
- Tempo sync
Read full descriptionHide full description
TfxEcho is an echo effect AudioUnit Extension plugin. It uses delay lines which are inspired by BBD (bucket brigade device). BBD is used in various analog delay unit and is known for its warm and dark sound. 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 analog delay unit. The delay line is inspired by BBD, but it is not emulation of the any particular BBD. Unlike the typical BBD based delay unit, frequency range of the delay line is not limited. The delay line is capable to capture signal in higher frequency up to about 22KHz. Features AudioUnit Extension - Delay Time: From 20 ms to 1200 ms - Feedback: From 0 % to 100 % - Adjustable lowpass filter and high-pass filter. - Modulation rate: From 0.01 Hz to 10 Hz - Modulation width: From 0 ms to +/- 10 ms - Delay time can be synced to tempo provided by the host application. Host Application Host application uses system audio input as an audio source and processed audio signal is routed to the system audio output.
WoodValvet
This audio effect app emulates tube saturation with multiple stages, offering extensive control over drive, tube types, and circuit configurations. It features advanced filtering, modulation, and output processing for detailed sound shaping.
- 3 tube stages with individual drive control
- Selectable tube types per stage
- Series/parallel stage configuration
- Input band filter with selectable slope
- LFO modulation for drive and filter
- Side chain input for drive modulation
- Visual harmonic generation representation
Read full descriptionHide full description
WoodValvet is a tube emulated saturator with extra features : - has 3 tube stages each with their own “Drive”control. - each stage can be set to a different tube type (ECC82, …). - stage 2 & 3 can be set in series or in parallel to create different harmonics. - stage 1 & 2 are class A circuits, stage 3 is a class AB circuit. - an input band filter allows to add harmonics on the selected band only. - has out-of-band gain control - filter has selectable slope (12 .. 48 dB/oct) - a post tube out lowpass filter allows to reduce the higher harmonics. - a “Constant Level” setting matches the output level with the input level. - has an LFO to modulate the drive and filter settings. - side chain input can modulate the drive settings (increase or duck mode). - has an “Auto Gain Input” mode to automatically bring quiet signals into range. - has a Stereo spread control. - has a brick-wall limiter on output - has a DC blocking output filter - has an output phase switch. - has a visual representation of the generated harmonics. - has oversampling (1 .. 8) - has an extra inter modulation control for extra distortion.
Screenshots
Verdict
The clearest difference is review sentiment: TfxEcho at 80% against WoodValvet's 0%. TfxEcho also leads on price ($4.99 vs $13.99). WoodValvet's advantage is update cadence (fortnightly vs every 3 months) and rating (5.0 vs 4.7). 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
TfxEcho costs $4.99 and WoodValvet $13.99 up front. Neither carries in-app purchases, so what you see is what you pay.
WoodValvet holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 12 and 7 respectively. Written reviews complicate that: 80% of TfxEcho's written reviews are positive against 0% of WoodValvet's, so the app with the better star average is not the one people write more warmly about.
TfxEcho ships an update every 3 months, WoodValvet fortnightly. Both last shipped on November 3, 2026.
| Parameter | TfxEcho | WoodValvet |
|---|---|---|
| Price | $4.99 — better | $13.99 |
| Rating | 4.7 (12 ratings) | 5.0 (7 ratings) — better |
| Positive reviews | 80.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 12 — better | 7 |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.5 | 11.4 — better |
| Further details — not scored | ||
| Size | 1 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryo Togawa | Woodman's Immaculate Maple Syrup Studio |
Customer experience
TfxEcho
WoodValvet
In-app purchases
TfxEcho
No in-app purchases
WoodValvet
No in-app purchases
