TfxEcho vs Blip Box
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.
Blip Box
A powerful sixteen-voice drum synthesizer offering a unique digital sound engine inspired by analog and digital synths. It features a touch-friendly interface, complex audio modulation, and versatile effects for creating distinctive electronic music.
- Sixteen-voice drum synthesizer
- Complex audio rate modulation
- Touch-first control interface
- Standalone and AUv3 plugin support
- Universal purchase for Apple platforms
- MIDI controller compatibility
- Pure synthesis engine, no samples
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Blip Box is a sixteen voice drum synthesizer that may look nice but can sound mean. Blip Box takes inspiration from a variety of synths, both analog and digital. We pulled together all the things we love about drum synthesis: complex audio rate modulation, snappy envelopes, harsh effects; and put them together in a compact, touch-friendly package. The result is a truly unique digital sound engine that has taken on a life of its own. Whatever you do, don’t have fun with it! Features: - Focused, fun, and characterful synth engine - Touch-first design, almost the entire screen is part of a control - Runs standalone or as AUv3 plug-in (in compatible host) - Universal purchase on Apple platforms: runs on iPhone, iPad, and Mac - Presets synced across your devices via iCloud - Hook up a MIDI controller to play with a keyboard (optional) Details: - Pure synthesis engine, no samples - Complex digital oscillator with two-way frequency modulation - White noise source - Two snappy AD envelopes with variable shape - Unique mix control for pure oscillator sound or ring mod mayhem - “Choose-your-own-adventure” effect: analog (ish) wavefolder or digital degradation - State variable filter for tone shaping - Envelopes can be routed to modulate oscillator shape, pitch, or filter cutoff - Mix to filter cutoff modulation available for crispy filter FM - Velocity responsive, either in traditional level (gain) mode or brightness mode - Multi-out mode available when running in AUv3 mode - Master tune for keeping tonal drum sounds in tune with your song - Includes 13 inventive and usable factory kits to get you started making music Check out our YouTube: https://www.youtube.com/@sketchaudio Read the manuals: https://sketchaudio.com/manuals/
Screenshots
Verdict
The clearest difference is update cadence: Blip Box at weekly against TfxEcho's every 3 months. Blip Box also leads on review sentiment (90% vs 80%). TfxEcho's advantage is chart position (#185 vs unranked) and price ($4.99 vs $5.99). On rating, ratings volume, 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
TfxEcho costs $4.99 and Blip Box $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.7 for TfxEcho against 4.8 for Blip Box. Both are backed by a comparable volume of ratings — 12 and 20 respectively. Written reviews are what separate them: 80% of TfxEcho's written reviews are positive against 90% of Blip Box's.
TfxEcho ships an update every 3 months, Blip Box weekly. The most recent releases landed on September 20, 2026 and September 9, 2026 respectively.
| Parameter | TfxEcho | Blip Box |
|---|---|---|
| Price | $4.99 — better | $5.99 |
| Rating | 4.7 (12 ratings) | 4.8 (20 ratings) — better |
| Positive reviews | 80.0% of reviews | 90.0% of reviews — better |
| Number of ratings | 12 | 20 — better |
| Update frequency | Every 3 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #185 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 13.5 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryo Togawa | Sketch Audio, LLC |
Customer experience
TfxEcho
Blip Box
In-app purchases
TfxEcho
No in-app purchases
Blip Box
No in-app purchases
Questions
Is TfxEcho free?
Is Blip Box free?
Which has better reviews, TfxEcho or Blip Box?
Do TfxEcho or Blip Box have ads?
Which is updated more often, TfxEcho or Blip Box?
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