Comparison

Recursion by folina vs Vesper MultiEffect

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

Head to head
About

Recursion by folina

This app creates evolving echoes and feedback effects by mutating sound over generations. It offers unique control over timing, memory, and signal degradation for creative sound design. Explore subtle echoes to unstable ambient spaces.

Highlights
  • Self-mutating recursive delay
  • Generational sound evolution
  • Independent control over recursion depth
  • Continuous drift and instability
  • Smearing for evolving washes
  • Tear events for abrupt mutations
Features
Read full description

Recursion is a delay and feedback effect built around inherited mutation. In a conventional delay, a sound repeats. In Recursion, it evolves. Each generation passes through a changing recursive system before becoming the source for the next. Timing drifts. Memories smear together. Sudden tears disturb the signal. Those disturbances are then inherited by everything that follows. The result can move from subtle animated echoes and strange doubling to deteriorating rhythmic patterns, unstable ambient spaces, and dense halls of increasingly distant memories. Seven controls keep the process immediate. Memory determines the spacing between generations. Recursion determines how deep the family tree grows. Decay determines how long those generations survive. Smear, Drift, and Tear determine how faithfully—or badly—the signal remembers its past. Recursion isn't designed to be a perfectly behaved delay. It's designed to remember. Incorrectly. Features: Self-mutating recursive delay and feedback processing Each generation inherits changes from the generation before it Independent control over recursive depth, memory spacing, and decay time Continuous bounded drift and instability Smearing that transforms distinct echoes into evolving washes Tear events introduce abrupt mutations into the recursive history From subtle animated echoes to deeply unstable feedback structures Designed for drums, synths, guitars, vocals, sound design, and ambient processing. -------------------------------------------------------------------------------------- Behavior Note: Recursion is intentionally less predictable than a conventional delay. At high Mix settings, more of the immediate dry attack is replaced by the delayed recursive signal. Short sounds may therefore seem quieter as Mix approaches fully wet. Around 50% Mix is recommended when you want to preserve the original attack. Recursive processing can also produce occasional abrupt transient or crackle-like textures as generations mutate and interact, particularly with sustained material, aggressive settings, or parameter movement. These behaviors are part of Recursion's unstable character.

About

Vesper MultiEffect

This app is a stereo delay and reverb effect for iPhone and iPad, allowing users to sculpt sound with interactive surfaces for time, space, and pitch manipulation. It offers extensive modulation, sequencing, and a built-in looper for creative audio processing.

Highlights
  • Stereo delay and reverb engines
  • Interactive TIME, SPACE, and FRACTURE surfaces
  • Six echo arrangements and eight space voices
  • Modulation, step sequencing, and pitch processing
  • Three-layer stereo looper
  • 100 factory presets
  • AUv3 audio effect compatible
Features
Read full description

TURN A NOTE INTO SOMEWHERE ELSE. VESPER is a stereo delay and reverb playground for iPhone and iPad. Start with a tight rhythmic echo, stretch it into a suspended room, then pull the sound apart with your fingertips. Use it as a standalone effect or load its AUv3 extension in a compatible music app. TOUCH THE SOUND Open Wave Field and the pedal unfolds into three interactive surfaces: TIME, SPACE and FRACTURE. Drag to reshape connected groups of parameters, from repeat spacing and feedback to room size, pitch and memory. Depth controls add another dimension. Keep the transformation, restore your starting point, or save a new preset. TWO ENGINES. MANY DIRECTIONS. Combine six echo arrangements with eight space voices. Explore pitch-shifted trails, reverse textures, stereo cross-feedback and moving diffusion. Choose how the engines feed each other, place processors across ten insert slots, and move between host-synced subdivisions and free timing. SOUNDS THAT KEEP MOVING Six modulation sources, a sixteen-step sequence and twelve modulation routes bring motion to your sound. The BECOME control performs a dedicated transformation in each factory preset. Freeze a texture, ride the mix, or use Memory Glass to introduce pitched fragments of recent audio. 100 PLACES TO START The included factory collection ranges from Impossible Rooms and Clockwork & Trouble to fractured rhythms, altered gravity and long-form textures. Search sounds by name, collection or tags, mark favourites, compare A/B states, and import or export your own presets. BUILD A PHRASE Capture up to 20 seconds of stereo audio in the iOS looper. Add up to three layers, adjust their levels, reverse playback or switch to half speed. Choose where the loop records and returns in the signal path. MADE TO PLAY A detailed pedal interface brings the main sound controls within reach, with a multifunction display for deeper editing. Dry/Wet and output makeup gain let you place the effect around your source. Wave Field turns sound design into a performance gesture. INCLUDED • Standalone app and AUv3 audio effect for iPhone and iPad • Stereo delay and reverb engines with flexible routing • Interactive TIME, SPACE and FRACTURE surfaces • 100 factory presets with individual BECOME transformations • Modulation, step sequencing, pitch and memory processing • Three-layer stereo looper • Preset search, favourites, A/B comparison and import/export Requires iOS/iPadOS 16 or later. AUv3 operation requires a compatible host app, available separately. Standalone live input requires microphone permission; headphones or an audio interface are recommended. An internal AUDITION phrase lets you explore sounds without connecting an instrument. Loop recordings are session-only and are not stored in presets or host state. Presets can be transferred between standalone and host instances using export/import. Created by NextEpochs.

Screenshots

Recursion by folina1 screens
Vesper MultiEffect4 screens

Verdict

The call

The clearest difference is price: Recursion by folina at $3.99 against Vesper MultiEffect's $19.99. On rating, ratings volume, 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

Recursion by folina costs $3.99 and Vesper MultiEffect $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Recursion by folina against 5.0 for Vesper MultiEffect. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Scorecard1 real difference · 8 level
Recursion by folina versus Vesper MultiEffect: the parameters behind the verdict, then further details
ParameterRecursion by folinaVesper MultiEffect
Price$3.99 — better$19.99
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings11
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size15 MB25 MB
Age rating4+4+
DeveloperJeremy PhillipsMike Gazzaruso

In-app purchases

None

Recursion by folina

No in-app purchases

None

Vesper MultiEffect

No in-app purchases

Questions

Is Recursion by folina free?
Recursion by folina costs $3.99, with no in-app purchases.
Is Vesper MultiEffect free?
Vesper MultiEffect costs $19.99, with no in-app purchases.
Which has better reviews, Recursion by folina or Vesper MultiEffect?
Recursion by folina and Vesper MultiEffect are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Recursion by folina or Vesper MultiEffect have ads?
Neither Recursion by folina nor Vesper MultiEffect shows ads.

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