Comparison

Holon vs MuckrakerAU

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

Head to head
About

Holon

This app transforms your movement through cities into a dynamic, real-time musical score. It uses your physical location and activity to generate interactive synth music, encouraging outdoor exploration and turning listeners into performers.

Highlights
  • Human-powered music generation
  • Encourages outdoor activity
  • Zero UI for minimal distraction
  • Environmentally responsive music
  • Real-time synth music creation
  • Optional AirPods and Apple Watch integration
Features
Read full description

Holon makes the city your instrument. It turns your movement in the environment into a synthetic, interactive score that reflects your context, supports your activities and alerts you to changes in the surrounding area. Holon uses physical computing and a geospatial dataset to synthesize music on the iPhone in real time from your data - no streaming or AI involved, just pure DSP and logic. What Holon Does: * Human powered music. Every action generates dynamic, improvised synth music in real time. * Encourages outdoor activities. Holon doesn’t work in your apartment or by shaking your phone around. Move through streets, parks, and transit systems to make the music happen. * Stays out of your way. Zero UI means less screen time, no distractions. * Uses places and spaces to modify the music you make. The environment isn’t background - it’s the score. * The more and further you move, the more things happen in the music. Use your musical agency instead of skipping and swiping. Why Holon Exists:
 Music has been reduced to a commodity and a background activity for consumerism. Holon isn’t here to help you chill when you swipe, scroll and buy more stuff, or improve your focus when working for the Man. Holon is here to break away from the static, one-way relationship of streaming services and to put the human in the loop - yourself. Forget emoting celebrities with their false sincerity, throw overproduced passive soundscapes and statistical algorithms on the dung heap of history. Holon turns listeners into performers and unlocks the musical potential of places. How to Use: * Go outside - Holon needs space to function, just like you. Different districts, parks, bridges, shops, street furniture - all contribute to the musical output. Strolling around your apartment or shaking your phone won’t do. * Put the phone in your pocket or on your dashboard. * Walk, run, drive - the world is now the interface, space is the machine. * Use the big button in the middle to power Holon off when not in use - Auditory AR can be a battery-intensive process! * Optional Apple AirPods support for head-controlled musical interactions! * Optional Apple Watch support for heart rate-synced music (biofeedback) *the Watch app may take a moment to install* Requirements:
 * Available in over 1000 regions in more than 100 countries. * Check coverage or request a new area at holonic.systems/holon. * Best experienced with headphones. Ensure adequate battery level for extended use. * A data plan is required to access our geospatial engine but use of data is low. Holon: Become part of the circuit and… Become Sound™

About

MuckrakerAU

This app offers a modulated distortion audio effect as an AUv3 plugin. It can be used in various audio applications to add grit or completely transform sounds. The effect is free with no ads or in-app purchases.

Highlights
  • AUv3 plugin support
  • Modulated distortion effect
  • Customizable sound roughness
  • Compatible with GarageBand and AUM
  • Free to use
Features
Read full description

Ancient inter-app audio effect Muckraker rises from the grave as an AUv3 plugin. Use it in GarageBand, AUM or your favourite audio application. Muckraker is a truculent modulated distortion effect. It can make your sound just a tiny bit rougher around the edges or ruin it utterly. If you knew its previous incarnation, rest assured it still has the same bad attitude. If not, well. Steel yourself. Muckraker remains 100% free. No ads, no in-app purchases, no subscriptions, no surveillance, no nag screens.

Screenshots

Holon4 screens
MuckrakerAU2 screens

Verdict

The call

The clearest difference is rating: MuckrakerAU at 5.0 against Holon's 4.5. MuckrakerAU also leads on in-app purchases (none vs 2). Holon's advantage is ratings volume (14 vs 2) and iOS requirement (12.0 vs 15.0). On price, 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. Holon sells 2 one-off in-app purchases. MuckrakerAU asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

MuckrakerAU holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Holon has 14 ratings behind it against 2, so its average is the more settled of the two.

Scorecard5 real differences · 5 level
Holon versus MuckrakerAU: the parameters behind the verdict, then further details
ParameterHolonMuckrakerAU
PriceFreeFree
Rating4.5 (14 ratings)5.0 (2 ratings) — better
Positive reviews75.0% of reviews—
Number of ratings14 — better2
Update frequencyEvery 3 months—
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size144 MB2 MB
Age rating4+4+
DeveloperHolonic Systems OyMatthew Caldwell

In-app purchases

2 purchases

Holon

One-time2
  • Apple Watch supportFree
  • Movesense SupportFree
None

MuckrakerAU

No in-app purchases

Questions

Is Holon free?
Holon is free to download, with in-app purchases available.
Is MuckrakerAU free?
MuckrakerAU is free to download, with no in-app purchases.
Which has better reviews, Holon or MuckrakerAU?
MuckrakerAU is rated higher. Holon averages 4.5 out of 5 from 14 ratings, while MuckrakerAU averages 5.0 from 2 ratings.
Do Holon or MuckrakerAU have ads?
Neither Holon nor MuckrakerAU shows ads.

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