Elastic FX vs TfxEcho
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Elastic FX
This app is a versatile multi-effect audio processor with four channels, offering extensive sound shaping and routing capabilities. It allows users to apply up to 40 different stereo effects to various audio sources, including microphones, instruments, and imported sound files. Features like an XY-Pad for intuitive control and automation enhance its creative potential.
- 4-channel multi-effect processor
- 40 stereo effects (Modulation, Pitch, Distortion, Filter, Delay, Reverb, Others)
- Advanced audio routing options
- XY-Pad for effect control and automation
- Master effect section with EQ and compressor
- Inter-App Audio and Audiobus 3 support
- MIDI control and preset management
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EFX is a 4 channels multi-effect processor, that's easy and intuitive to play, but offers complex options to shape the sound and to route the audio effects stream. Connect EFX to any input source, like the devices built in microphone, an external keyboard or guitar (iPad soundcard needed) or to your favorite iOS drum machine or synthesizer via Inter-App Audio or Audiobus. Or import a soundfile into the app and alienate it with with up to 4 different effects at the same time! -------------------------------------------------------------- FEATURES: - Multi-effect app created by the developers of Elastic Drums - 4 effect units with different routing options - Choose one of 40 available stereo effects in each effect unit - Broad range of different effects of the following categories: Modulation, Pitch, Distortion, Filter, Delay, Reverb, Others - Additional master effect section with level meters, 3 band equalizer, compressor, stutter fx - XY-Pad to easily control the most important effect values (Kaoss Pad style) - Possibility to automate/record the XY-Pad tweaks (1,2,4,8,16 bars length) - Automated tweaks and some effects (PingPong Delay) get played in sync via Ableton Link/Inter-App Audio - Audiobus 3 support - Audiobus state save - Audiobus remote control - Inter-App Audio support - Simple audio player to test the effects with audiofiles - Tweak the most important parameters via Midi, Midi learn option - Switch user-presets with Midi Program Change messages - Save, load and share user presets FUTURE PLANS: - More effects
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.
Screenshots
Verdict
The clearest difference is price: TfxEcho at $4.99 against Elastic FX's $9.99. TfxEcho also leads on chart position (#185 vs unranked) and review sentiment (80% vs 69%). Elastic FX's advantage is update cadence (every 5 weeks vs every 3 months) and iOS requirement (11.0 vs 13.5). 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
Elastic FX costs $9.99 and TfxEcho $4.99 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 — 4.6 for Elastic FX against 4.7 for TfxEcho. Both are backed by a comparable volume of ratings — 34 and 12 respectively. Written reviews are what separate them: 69% of Elastic FX's written reviews are positive against 80% of TfxEcho's.
Elastic FX ships an update every 5 weeks, TfxEcho every 3 months. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.
| Parameter | Elastic FX | TfxEcho |
|---|---|---|
| Price | $9.99 | $4.99 — better |
| Rating | 4.6 (34 ratings) | 4.7 (12 ratings) — better |
| Positive reviews | 69.2% of reviews | 80.0% of reviews — better |
| Number of ratings | 34 — better | 12 |
| Update frequency | Every 5 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #185 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13.5 |
| Further details — not scored | ||
| Size | 34 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Oliver Greschke (DE) | Ryo Togawa |
Customer experience
Elastic FX
TfxEcho
In-app purchases
Elastic FX
No in-app purchases
TfxEcho
No in-app purchases









