Comparison

TfxEcho vs AxeScales

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

AxeScales

Read full description

Learn the Major and Minor Scales on Guitar. Select from Heptatonic (7 Note), Hexatonic (6 Note), Pentatonic (5 Note), Blues (6 Note), or Arpeggios (3 Notes), from any Root Note, for each Major and Minor Scale. (A total of 120 different combinations!) Shows the Scale Degree of each note in the Scale, with the Root Notes of each Scale highlighted. Each note will play when clicked. Fret numbers are shown below the Fretboard.

Screenshots

TfxEcho2 screens
AxeScales3 screens

Verdict

The call

The clearest difference is update cadence: AxeScales at every 3 days against TfxEcho's every 3 months. AxeScales also leads on price ($1.99 vs $4.99). TfxEcho's advantage is iOS requirement (13.5 vs 16.2). On ads, in-app purchases 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 AxeScales $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

TfxEcho ships an update every 3 months, AxeScales every 3 days. The most recent releases landed on October 19, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
TfxEcho versus AxeScales: the parameters behind the verdict, then further details
ParameterTfxEchoAxeScales
Price$4.99$1.99 — better
Rating4.7 (12 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings12 — better—
Update frequencyEvery 3 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.5 — better16.2
Further details — not scored
Size1 MB3 MB
Age rating4+4+
DeveloperRyo TogawaJoseph Svantner

In-app purchases

None

TfxEcho

No in-app purchases

None

AxeScales

No in-app purchases

Questions

Is TfxEcho free?
TfxEcho costs $4.99, with no in-app purchases.
Is AxeScales free?
AxeScales costs $1.99, with no in-app purchases.
Do TfxEcho or AxeScales have ads?
Neither TfxEcho nor AxeScales shows ads.
Which is updated more often, TfxEcho or AxeScales?
TfxEcho ships an update every 3 months, and AxeScales every 3 days. Most recently, TfxEcho was updated on October 19, 2026 and AxeScales on October 9, 2026.

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