Comparison

Entonal Tuner vs FrobulatorAU

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

Head to head
About

Entonal Tuner

This app allows you to tune instruments to any imaginable scale, from perfect harmony to extreme dissonance. It accurately recreates global traditional music and can also function as a standard instrument tuner. Explore scales by playing their notes before tuning your instrument.

Highlights
  • Tune to any scale
  • Explore scales by playing notes
  • Adjust root note frequency
  • Recreate traditional music
  • Standard instrument tuner function
Read full description

Tune your instrument to any scale you can imagine. Perfect harmony, or super sharp dissonance, and everything in between. Accurately recreate traditional music from around the world, as well as pre-modern western music. Or use it as a standard instrument tuner! Each scale can be selected, and its notes can be played to get a feel for it before tuning your instrument. Each scale may have a different root note (1/1), and the root note frequency (1/1) can be adjusted while tuning. Entonal Tuner was created when the developer began to learn about Just Intonation and microtonal music. He soon found that it, although some tuning apps support different temperaments and scales, they are difficult to edit, and not a "first class citizen". So the seed was planted... and Entonal Tuner was born.

About

FrobulatorAU

This audio effect plugin transforms sounds with spectral delay, adding unique character to music projects. It's a free and open-source tool designed for use in various audio applications, offering extensive creative possibilities.

Highlights
  • Spectral delay effect
  • AUv3 plugin
  • Use in GarageBand, AUM, and other DAWs
  • Multiple instances per project
  • Free and open-source
  • No ads or in-app purchases
Features
Read full description

Venerable inter-app audio effect Frobulator reborn — at long last — as an AUv3 plugin. Use it in GarageBand, AUM or your favourite audio application. Add multiple instances in the same project. Drag your frobulation kicking and screaming into the 21st century. Frobulator is a spectral delay effect. It makes your noises a little bit stranger. Twiddle the knobs to find something you like, or don't and throw it away. No-one will hold it against you. Frobulator is free as in beer and free as in speech. Freer, probably, given the state of both those things these days. No ads, no in-app purchases, no subscriptions, no surveillance, no nag screens. If you happen to be one of the 6 people who asked for this, rejoice! If you aren't, now's your chance to discover what you've been missing all this time. Or not. I'm not the boss of you.

Screenshots

Entonal Tuner4 screens
FrobulatorAU1 screens

Verdict

The call

The clearest difference is rating: FrobulatorAU at 5.0 against Entonal Tuner's 4.3. FrobulatorAU also leads on in-app purchases (none vs 1). Entonal Tuner's advantage is update cadence (every 3 days vs every 9 days) and iOS requirement (12.0 vs 17.0). On price, ratings volume, 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

Both are free to download. Entonal Tuner sells 1 one-off in-app purchase. FrobulatorAU asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FrobulatorAU holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 14 and 8 respectively.

UpkeepUpdate frequency

Entonal Tuner ships an update every 3 days, FrobulatorAU every 9 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
Entonal Tuner versus FrobulatorAU: the parameters behind the verdict, then further details
ParameterEntonal TunerFrobulatorAU
PriceFreeFree
Rating4.3 (14 ratings)5.0 (8 ratings) — better
Positive reviews85.7% of reviews—
Number of ratings14 — better8
Update frequencyEvery 3 days — betterEvery 9 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size17 MB2 MB
Age rating4+4+
DeveloperNode AudioMatthew Caldwell

Customer experience

Entonal Tuner

All ratings14 ratings
Positive85.7%
Neutral7.1%
Negative7.1%
Written reviews7 reviews
Positive85.7%
Neutral14.3%
Negative0.0%

FrobulatorAU

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Entonal Tuner

One-time1
  • Upgrade to Pro$3.99
None

FrobulatorAU

No in-app purchases

Questions

Is Entonal Tuner free?
Entonal Tuner is free to download, with in-app purchases available.
Is FrobulatorAU free?
FrobulatorAU is free to download, with no in-app purchases.
Which has better reviews, Entonal Tuner or FrobulatorAU?
FrobulatorAU is rated higher. Entonal Tuner averages 4.3 out of 5 from 14 ratings, while FrobulatorAU averages 5.0 from 8 ratings.
Do Entonal Tuner or FrobulatorAU have ads?
Neither Entonal Tuner nor FrobulatorAU shows ads.
Which is updated more often, Entonal Tuner or FrobulatorAU?
Entonal Tuner ships an update every 3 days, and FrobulatorAU every 9 days. Most recently, Entonal Tuner was updated on November 2, 2026 and FrobulatorAU on October 31, 2026.

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