Comparison

Refraktions vs Coil

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

Head to head
About

Refraktions

This app is an 8-track generative MIDI sequencer that uses AI to create personalized loops based on user input over time. It offers a unique approach to music creation, adapting to individual preferences.

Highlights
  • 8-track generative MIDI sequencing
  • Artificial intelligence processing
  • Time-based input adaptation
  • Personalized loop creation
  • User-tailored output
Features
Read full description

Refraktions is an 8-track generative MIDI sequencer with artificial intelligence that processes input over time to create loops tailored to each individual user.

About

Coil

This app simulates the physical behavior of spring reverb tanks, offering two distinct spring types and interactive "hit" features. Control mix, tone, and dwell for unique sonic textures, with an optional amp stage for added grit. It functions as a standalone app or AUv3 plugin.

Highlights
  • Physically simulated springs
  • Two distinct spring tank personalities (Long & Short)
  • Interactive 'hit' function for metallic chaos
  • Adjustable Mix, Tone, and Dwell controls
  • Integrated amp stage with presence and grit
  • AUv3 plugin and standalone app support
  • MIDI learn for all controls
Features
Read full description

Coil is a spring reverb built from the ground up around the thing that makes real spring tanks so good: they're physical. The springs stretch, resonate, build up energy, and get hit, and when you kick the tank, you hear it. There are no impulse responses inside Coil. The springs themselves are simulated while you play. Change the physics and you change the sound. TWO TANKS, TWO PERSONALITIES • LONG — big, slow, heavy springs. More depth, more wobble, more of that surf-era drip. • SHORT — tighter springs with a brighter, immediate response. Less wash, more snap. KRAANG! Hit the pedal and the springs respond with a burst of metallic chaos. Because they're physically simulated, what comes back depends on where the springs are in their motion when you land. Try it while the reverb is already ringing. It's ridiculous. It's also extremely useful. THREE KNOBS, NO MYSTERY • MIX — how much spring you want. • TONE — how fast the top end dies in the steel. Not an EQ: you're changing the behaviour of the spring itself. • DWELL — how long the springs keep moving. AND THE JEWEL Tap it and the whole thing goes through a measured amp stage — presence, grit and all. Nobody will tell you this is there. WORKS EVERYWHERE • AUv3 for GarageBand, Logic Pro, AUM and any Audio Unit host • Standalone app — plug in and play, no DAW needed • MIDI learn on every control • One purchase: Mac, iPad and iPhone No giant metal tank. No springs to break. No road case. A spring you don't have to haul around.

Screenshots

Refraktions4 screens
Coil4 screens

Verdict

The call

The clearest difference is rating: Coil at 5.0 against Refraktions's 4.5. Coil also leads on update cadence (every 3 days vs every 2 months) and price ($0.99 vs $5.99). Refraktions's advantage is ratings volume (28 vs 1). On ads, in-app purchases, monetization model 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

Refraktions costs $5.99 and Coil $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Coil holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Refraktions has 28 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Refraktions ships an update every 2 months, Coil every 3 days. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.

Scorecard4 real differences · 6 level
Refraktions versus Coil: the parameters behind the verdict, then further details
ParameterRefraktionsCoil
Price$5.99$0.99 — better
Rating4.5 (28 ratings)5.0 (1 ratings) — better
Positive reviews90.0% of reviews—
Number of ratings28 — better1
Update frequencyEvery 2 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS14.3 — better15.0
Further details — not scored
Size26 MB27 MB
Age rating4+4+
DeveloperJason SnellJoshua Rideout

Customer experience

Refraktions

All ratings28 ratings
Positive85.7%
Neutral7.1%
Negative7.1%
Written reviews20 reviews
Positive90.0%
Neutral5.0%
Negative5.0%

Coil

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Refraktions

No in-app purchases

None

Coil

No in-app purchases

Questions

Is Refraktions free?
Refraktions costs $5.99, with no in-app purchases.
Is Coil free?
Coil costs $0.99, with no in-app purchases.
Which has better reviews, Refraktions or Coil?
Coil is rated higher. Refraktions averages 4.5 out of 5 from 28 ratings, while Coil averages 5.0 from 1 ratings.
Do Refraktions or Coil have ads?
Neither Refraktions nor Coil shows ads.
Which is updated more often, Refraktions or Coil?
Refraktions ships an update every 2 months, and Coil every 3 days. Most recently, Refraktions was updated on October 10, 2026 and Coil on October 13, 2026.

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