Comparison

Pepp vs Relic Flow

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

Head to head
About

Pepp

Create electronic music with an intuitive rhythm and harmony engine, no prior musical knowledge required. Design unique sounds, save loops, and mix them live. Sync with other apps and hardware for expanded creative possibilities.

Highlights
  • Intelligent rhythm and harmony engine
  • Twisted groovebox/arpeggiator/synthesizer
  • Sixteen sliders and 16-step sequencer
  • 160 memory slots for loops
  • MIDI sync and sequencing
  • Audiobus integration
  • Ten synth and five drum oscillators
Features
Read full description

"I love the spirit behind the concept. Definitely taking advantage of what can be designed these days. The fact that the controls have influence on each other makes for an extremely wide range of possible textures." -Geoff White "A lot of the musical automata apps out there sound like cheap cheese. This is gourmet cheese." -MuzikAppJunkie Pepp opens up the joy of electronic music making to everyone. Thanks to an intelligent rythm and harmony engine, no musical knowledge is needed. Pepp is immediate, intuitive and vastly musical by nature. Make electronic music like there's nothing to it! Pepp is very easy to use yet it can produce a vast range of sounds. Forget about boring factory sounds. Come up with your own mindbending loops in no time, store them in memory slots, mix them live and jam with your friends. Tweak all parameters to the extreme without destroying your original loops. This twisted groovebox/arpeggiator/synthesizer lets you quickly forge original electronic music using sixteen sliders and a sixteen step sequencer. Instantly save and recall your ideas without missing a beat. With 160 memory slots you're not likely to run out of storage. Pepp can also be synced via MIDI, played live from a MIDI keyboard or sequenced from your favorite DAW. Naturally, all sliders can be mapped to midi controllers. Pepp is also integrated with Audiobus so you can use it with all of your audiobus compatible apps! FEATURES AT A GLANCE Ten synth oscillators Five drum oscillators FM-synthesis Audiobus MIDI Clock in MIDI in (Notes and CC) MIDI Latch/Gate Intelligent arpeggiator Advanced rythm engine Lo-/Hi-pass Filter w/ Resonance Delay Samle and hold Instant resample/reloop Detune Portamento Reverb Gain Glissando Master octave +-2 Tempo multiplier Record and share loops via mail or SMS OSCILLATOR TYPES Sine Square Sawtooth Triangle Wavetable Noise LIMITATIONS Some key features are disabled in this FREE version of Pepp. The full version of Pepp can be unlocked from within the app by using in-app purchase. Been working hard for a long time to create Pepp. I hope you enjoy it and appreciate your support!

About

Relic Flow

Generate unique Lo-Fi rhythms, noise patterns, and drum loops using advanced synthesis algorithms. Explore billions of sound samples with intuitive controls and real-time audio recording. Perfect for musicians and sound designers seeking endless creative possibilities.

Highlights
  • Lo-Fi rhythm and drum loop generation
  • Billions of unique sound samples
  • Real-time audio recording to WAV
  • Multiple input methods (on-screen, PC keyboard, MIDI)
  • Export to WAV, SunVox, and text clipboard
  • iOS Audio Unit Extension (AUv3) support
Features
Read full description

Relic Flow is a generator of Lo-Fi rhythms, noise patterns and drum loops based on unique synthesis algorithms from NightRadio. More than 4 billion samples from the depths of the Mathematical Universe! Features: * search for new sounds with three buttons: next random set, edit code, previous set; each set of 12 sounds corresponds to a code of 8 characters; * three types of keyboards for live performing: on-screen buttons, PC keyboard, MIDI input; * several processing parameters + control via MIDI; * real-time audio recording to WAV (32-bit); * export to: WAV (one file or a set), SunVox (samples + effects in one file), text clipboard; * the LCK button freezes individual samples - they will not change during the search for new sets; * iOS Audio Unit Extension (AUv3). Double clicking on a parameter opens a window for setting the exact value. If you enable the Hold option, the notes will play endlessly, without reacting to key release (noteOff) events; turning the note on again works like turning it off; there are two ways to enable this option: 1) using the Hold parameter in the "MIDI Mapping" window; 2) by pressing the HOLD button, which appears in place of LCK while playing the musical keyboard: press HOLD, release the desired notes - then the released notes will continue to play.

Screenshots

Pepp3 screens
Relic Flow2 screens

Verdict

The call

The clearest difference is review sentiment: Relic Flow at 93% against Pepp's 29%. Relic Flow also leads on in-app purchases (none vs 1) and rating (4.8 vs 4.6). Pepp's advantage is price (Free vs $1.99) and update cadence (every 6 months vs every 17 months). On 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

Pepp is free to download; Relic Flow costs $1.99 up front. Pepp sells 1 one-off in-app purchase. Relic Flow asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Relic Flow holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Relic Flow has 26 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 29% of Pepp's written reviews are positive against 93% of Relic Flow's.

UpkeepUpdate frequency

Pepp ships an update every 6 months, Relic Flow every 17 months. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.

Scorecard8 real differences · 2 level
Pepp versus Relic Flow: the parameters behind the verdict, then further details
ParameterPeppRelic Flow
PriceFree — better$1.99
Rating4.6 (5 ratings)4.8 (26 ratings) — better
Positive reviews29.2% of reviews93.3% of reviews — better
Number of ratings526 — better
Update frequencyEvery 6 months — betterEvery 17 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better12.0
Further details — not scored
Size4 MB6 MB
Age rating4+4+
DeveloperPatrik HedmalmAlexander Zolotov

Customer experience

Pepp

All ratings5 ratings
Positive80.0%
Neutral20.0%
Negative0.0%
Written reviews24 reviews
Positive29.2%
Neutral16.7%
Negative54.2%

Relic Flow

All ratings26 ratings
Positive96.2%
Neutral0.0%
Negative3.8%
Written reviews15 reviews
Positive93.3%
Neutral0.0%
Negative6.7%

In-app purchases

1 purchases

Pepp

One-time1
  • Unlock Pepp$4.99
None

Relic Flow

No in-app purchases

Questions

Is Pepp free?
Pepp is free to download, with in-app purchases available.
Is Relic Flow free?
Relic Flow costs $1.99, with no in-app purchases.
Which has better reviews, Pepp or Relic Flow?
Relic Flow is rated higher. Pepp averages 4.6 out of 5 from 5 ratings, while Relic Flow averages 4.8 from 26 ratings.
Do Pepp or Relic Flow have ads?
Neither Pepp nor Relic Flow shows ads.
Which is updated more often, Pepp or Relic Flow?
Pepp ships an update every 6 months, and Relic Flow every 17 months. Most recently, Pepp was updated on October 5, 2026 and Relic Flow on October 13, 2026.

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