TfxEcho vs Things
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
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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.
Things
This app offers an experimental filter bank delay effect for creative sound design. It features up to 10 band pass filters with adjustable resonance and individual delay controls. Users can manipulate various parameters across bands to generate unique echoes, reverbs, and sequences.
- Up to 10 band pass filters
- Controllable resonance per band
- Dedicated delay with feedback per band
- Parameter spread across bands
- AUv3 and Standalone support
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Bubbles is an unusual filter bank effect plugin (AUv3 and Standalone) aimed at experimental sound design. You can use up to 10 band pass filters, represented by bubbles in the UI, with controllable resonance. Each band can have a dedicated delay with feedback. You can spread the cutoff, resonance, delay time, and delay feedback across each band to get very creative effects, from odd-sounding echoes/reverbs to impossible sequences.
Screenshots
Verdict
The clearest difference is update cadence: TfxEcho at every 3 months against Things's every 32 months. TfxEcho also leads on price ($4.99 vs $6.99). Things's advantage is rating (5.0 vs 4.7) and review sentiment (100% vs 80%). 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 Things $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Things holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 12 and 19 respectively. Written reviews point the same way: 80% of TfxEcho's written reviews are positive against 100% of Things's.
TfxEcho ships an update every 3 months, Things every 32 months. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.
| Parameter | TfxEcho | Things |
|---|---|---|
| Price | $4.99 — better | $6.99 |
| Rating | 4.7 (12 ratings) | 5.0 (19 ratings) — better |
| Positive reviews | 80.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 12 | 19 — better |
| Update frequency | Every 3 months — better | Every 32 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.5 | 12.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryo Togawa | AudioThing Ltd. |
Customer experience
TfxEcho
Things
In-app purchases
TfxEcho
No in-app purchases
Things
No in-app purchases









