Comparison

TfxEcho vs Song Chef

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read 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.

About

Song Chef

Create personalized songs from your spoken messages. Simply provide your voice, message, and choose a style, and the app crafts custom lyrics and music. Share your heartfelt creations as audio or text with lyrics.

Highlights
  • Speak-synced vocals
  • Dozens of song styles
  • Custom lyric generation
  • Audio or text + lyrics output
  • Save creations to device
Features
Read full description

Song Chef turns your feelings into custom songs — in your voice. It’s not how it sounds - It’s what it says. No music skills required - just your voice, message, and heart. Not a singer? No problem. This isn’t about hitting notes — it’s about hitting what you want to say. Perfect for: • Love / Romance (Simple love songs, Second Base, Anywhere With You, Kiss and Make Up, more..) • Birthday surprises • Apologies (I'm sorry) • Thank You • Encouragement • Congratulations & Milestones (Graduation) • Holidays (Mother's Day, Father's Day, Christmas, Hanukkah, Happy New Year, Fourth of July) • Friendship (Say Something Nice) • Songs about your dog (Ruff!) • Sweet messages to friends and family Features: • Speak-synced vocals (no singing needed) • Dozens of styles and “recipes” • Custom lyrics created from your answers • Send as audio or text + lyrics • Save your creations on your device. Whether you want to say “I love you,” “I’m sorry,” or “I miss you,” Choose a theme, answer a few questions, and Song Chef writes lyrics, adds music, and syncs your voice to the beat.

Screenshots

TfxEcho2 screens
Song Chef4 screens

Verdict

The call

The clearest difference is in-app purchases: TfxEcho at none against Song Chef's 2. TfxEcho also leads on ratings volume (12 vs 1) and iOS requirement (13.5 vs 16.6). Song Chef's advantage is update cadence (every 10 days vs every 3 months) and rating (5.0 vs 4.7). On ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

TfxEcho costs $4.99 and Song Chef $0.99 up front. Song Chef sells 2 in-app purchases, starting at $5.99 per month. TfxEcho asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Song Chef holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: TfxEcho has 12 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

TfxEcho ships an update every 3 months, Song Chef every 10 days. Both last shipped on November 3, 2026.

Scorecard7 real differences · 3 level
TfxEcho versus Song Chef: the parameters behind the verdict, then further details
ParameterTfxEchoSong Chef
Price$4.99$0.99 — better
Rating4.7 (12 ratings)5.0 (1 ratings) — better
Positive reviews80.0% of reviews—
Number of ratings12 — better1
Update frequencyEvery 3 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.5 — better16.6
Further details — not scored
Size1 MB155 MB
Age rating4+4+
DeveloperRyo TogawaSong Chef LLC

Customer experience

TfxEcho

All ratings12 ratings
Positive91.7%
Neutral0.0%
Negative8.3%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Song Chef

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

TfxEcho

No in-app purchases

2 purchases

Song Chef

Subscriptions2
  • Unlimited access$5.991 Month
  • Song Chef Premium$39.991 Year

Questions

Is TfxEcho free?
TfxEcho costs $4.99, with no in-app purchases.
Is Song Chef free?
Song Chef costs $0.99, and also offers in-app purchases.
Which has better reviews, TfxEcho or Song Chef?
Song Chef is rated higher. TfxEcho averages 4.7 out of 5 from 12 ratings, while Song Chef averages 5.0 from 1 ratings.
Do TfxEcho or Song Chef have ads?
Neither TfxEcho nor Song Chef shows ads.
Which is updated more often, TfxEcho or Song Chef?
TfxEcho ships an update every 3 months, and Song Chef every 10 days. Most recently, TfxEcho was updated on November 3, 2026 and Song Chef on November 3, 2026.

Other comparisons