Comparison

Circles Music vs FIELD KIT Playback Engine

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

Head to head
About

Circles Music

Discover music through human recommendations, not algorithms. Share your favorite songs or explore what others are listening to. Seamlessly play tracks within your existing streaming service.

Highlights
  • Human-curated music feed
  • Discover songs from friends and tastemakers
  • Play music via existing streaming services
  • Share your own music picks
  • No algorithmic recommendations
Features
Read full description

Music, curated by humans. Not algorithms. Circles is a feed of songs shared by real people with real taste. Open it up and you'll see what curators, tastemakers, and friends are actually listening to right now. Tap any song and it plays in the streaming service you already use: Apple Music, Spotify, Tidal, SoundCloud, Bandcamp, or Qobuz. No algorithm picking for you. No new library to build. No habit to change. Just great music, curated by people who care. Share your own picks whenever you feel like it, or don't. Circles is rewarding from the moment you open it, whether you're here to discover or to share. Find your next favorite song the way music was always meant to be shared: person to person.

About

FIELD KIT Playback Engine

Transform audio recordings into evolving textures, rhythms, and atmospheres. Create up to four independent playback windows with customizable speed, direction, and effects. Explore new sonic material from your recordings.

Highlights
  • Up to four independent playback windows
  • Variable playback speed and direction
  • Drive and filtering per window
  • Routable modulation sources
  • Save and recall .fieldkit files
  • Standalone app and AUv3 Audio Unit
Currently charting
Read full description

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.

Screenshots

Circles Music4 screens
FIELD KIT Playback Engine4 screens

Verdict

The call

The clearest difference is price: Circles Music at Free against FIELD KIT Playback Engine's $9.99. Circles Music also leads on rating (5.0 vs 4.6). FIELD KIT Playback Engine's advantage is chart position (#173 vs unranked). On ratings volume, update cadence, ads and in-app purchases 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

Circles Music is free to download; FIELD KIT Playback Engine costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Circles Music holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 2 and 5 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 7 level
Circles Music versus FIELD KIT Playback Engine: the parameters behind the verdict, then further details
ParameterCircles MusicFIELD KIT Playback Engine
PriceFree — better$9.99
Rating5.0 (2 ratings) — better4.6 (5 ratings)
Positive reviews—80.0% of reviews
Number of ratings25 — better
Update frequencyEvery 2 weeksEvery 2 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank—#173 — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.115.0 — better
Further details — not scored
Size48 MB12 MB
Age rating12+4+
DeveloperCircles Media, IncField Tone Audio, LLC

Customer experience

Circles Music

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

FIELD KIT Playback Engine

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral20.0%
Negative0.0%

In-app purchases

None

Circles Music

No in-app purchases

None

FIELD KIT Playback Engine

No in-app purchases

Questions

Is Circles Music free?
Circles Music is free to download, with no in-app purchases.
Is FIELD KIT Playback Engine free?
FIELD KIT Playback Engine costs $9.99, with no in-app purchases.
Which has better reviews, Circles Music or FIELD KIT Playback Engine?
Circles Music is rated higher. Circles Music averages 5.0 out of 5 from 2 ratings, while FIELD KIT Playback Engine averages 4.6 from 5 ratings.
Do Circles Music or FIELD KIT Playback Engine have ads?
Neither Circles Music nor FIELD KIT Playback Engine shows ads.
Which is updated more often, Circles Music or FIELD KIT Playback Engine?
Circles Music ships an update every 2 weeks, and FIELD KIT Playback Engine every 2 weeks. Most recently, Circles Music was updated on October 30, 2026 and FIELD KIT Playback Engine on October 31, 2026.

Other comparisons