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FIELD KIT Playback Engine

by Field Tone Audio, LLC

  • Music
  • Paid
  • Small & simple · 93
View on the App Store
Rating
4.6
5 ratings · US storefront
Top 95%among 151 Music apps
Last update
Oct 3, 2026
Version 1.3.0
Size
12 MB
Category
Music
Tracked since
Oct 9, 2026

Estimated revenue

A model estimate with a likely range, not a reported figure.

No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.

How this estimate is made

Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.

Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.

Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.

Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.

Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.

Full method

Screenshots

As shown on the App Store listing.

About this app

Text from the App Store listing.

FIELD KIT is an audio playback instrument built for turning recorded sound into evolving texture, rhythm, and atmosphere.

Load an audio file and create up to four independent playback windows across the recording. Each window can move through a different section of the source with its own playback speed, direction, crossfade, drive, filtering, level, and pan.

Use FIELD KIT to pull overlapping textures from long field recordings, transform environmental sound into ambient beds, create asynchronous loops, or find entirely new material hidden inside a recording.

Three modulation sources can be routed independently across the playback windows, allowing parameters to drift, pulse, and evolve over time.

Features include:

  • Up to four independent playback windows
  • Forward, reverse, and ping-pong playback
  • Variable playback speed
  • Adjustable loop crossfade
  • Drive and filtering per window
  • Independent level and pan controls
  • Three routable modulation sources
  • SPLICE for working with multiple audio sources
  • Save and recall .fieldkit files to share across platforms
  • Internal recording in Standalone mode
  • Standalone app and AUv3 Audio Unit
  • Host transport support in compatible AUv3 hosts

FIELD KIT was designed around a simple idea: a recording doesn't have to be played from beginning to end. It can be a place to explore.

What’s new

Release notes for the latest version, as written by the developer.

v1.3.0

FIELD KIT 1.3.0 introduces several quality-of-life features and improvements:

  • Route each playback window to its own audio channel in AUv3 hosts
  • Tap a SPLICE divider flag to remove audio to the left or right of a splice
  • Added global Speed, Drive, Filter, Level, and Pan controls
  • LFOs can now be routed to new global parameters
  • Parameters are now exposed within AUv3 hosts for external control and modulation
  • Added relative snapping for commonly used playback speeds (0.5x, 1.0x, and 2.0x)
  • Additional stability and performance improvements

Rank history

Daily position in the France charts. #1 is at the top.

Best rank
#22
Current rank
–

Not charting today

Days charting
5 of 7

On the charts today

Not on any France chart today.

Small & simple score

How realistic it is for a small team to build something like this.

93/100

Small & simple

  • Developer size70% · 25

    Developer: 2 apps on the charts

  • Audience size100% · 20

    Ratings: 5

  • App size100% · 10

    Size: 12 MB

  • Price model100% · 15

    Price model: paid

  • Demand proof100% · 30

    Best rank #1, 11 countries

An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2

How the score works

Version history

  • 1.3.0LatestReleased Oct 3, 2026