Comparison

Radio Unit 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

Radio Unit

Stream over 35,000 internet radio stations with this app. Enhance your audio experience by using it as an AUv3 plugin with other compatible music apps. Discover new music and save your favorites.

Highlights
  • Access 35,000+ radio stations
  • Enhance audio with AUv3 plugins
  • Intuitive interface
  • Song discovery and saving
  • Favorites sync across devices
  • MIDI control for AUv3 plugin
Read full description

Discover a world of music with Radio Unit, a sleek and powerful Internet radio player with a built-in Audio Unit (AUv3) plugin.  Elevate your listening experience by enhancing streaming audio in real time using your favorite third-party audio processing plugins (not included) within AUv3-compatible hosts like Drambo or GarageBand. Features: • Intuitive Interface: Enjoy a clean, user-friendly design for effortless navigation. • Song Discovery: Tap to add the currently playing song to your favorites, then open it in the Apple Music app or search for it on Google. • Massive Station Library: Access over 35,000 radio stations—search by name, browse by genre or location, and sort by popularity. • Favorites Sync: Save stations and songs to your favorites list, seamlessly synced across your devices. • AUv3 Integration: Use Radio Unit as a standalone app or as an AUv3 plugin in hosts like Drambo, GarageBand, and more, with support for multiple plugin instances. • MIDI Mapping: Control buttons can be triggered by MIDI Note events (C3 to F3). (AUv3 only) • Battery Efficient: Stream music without draining your device. The app requires internet connection.

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

Radio Unit2 screens
Relic Flow2 screens

Verdict

The call

The clearest difference is update cadence: Radio Unit at every 2 months against Relic Flow's every 17 months. Relic Flow's advantage is price ($1.99 vs $6.99) and rating (4.8 vs 4.6). On ratings volume, ads, in-app purchases 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

Radio Unit costs $6.99 and Relic Flow $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Relic Flow holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 59 and 26 respectively. Written reviews point the same way: 81% of Radio Unit's written reviews are positive against 93% of Relic Flow's.

UpkeepUpdate frequency

Radio Unit ships an update every 2 months, Relic Flow every 17 months. The most recent releases landed on September 13, 2026 and September 17, 2026 respectively.

Scorecard6 real differences · 4 level
Radio Unit versus Relic Flow: the parameters behind the verdict, then further details
ParameterRadio UnitRelic Flow
Price$6.99$1.99 — better
Rating4.6 (59 ratings)4.8 (26 ratings) — better
Positive reviews81.5% of reviews93.3% of reviews — better
Number of ratings59 — better26
Update frequencyEvery 2 months — betterEvery 17 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size2 MB6 MB
Age rating4+4+
DeveloperBeepStreetAlexander Zolotov

Customer experience

Radio Unit

All ratings59 ratings
Positive89.8%
Neutral3.4%
Negative6.8%
Written reviews54 reviews
Positive81.5%
Neutral9.3%
Negative9.3%

Relic Flow

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

In-app purchases

None

Radio Unit

No in-app purchases

None

Relic Flow

No in-app purchases

Questions

Is Radio Unit free?
Radio Unit costs $6.99, with no in-app purchases.
Is Relic Flow free?
Relic Flow costs $1.99, with no in-app purchases.
Which has better reviews, Radio Unit or Relic Flow?
Relic Flow is rated higher. Radio Unit averages 4.6 out of 5 from 59 ratings, while Relic Flow averages 4.8 from 26 ratings.
Do Radio Unit or Relic Flow have ads?
Neither Radio Unit nor Relic Flow shows ads.
Which is updated more often, Radio Unit or Relic Flow?
Radio Unit ships an update every 2 months, and Relic Flow every 17 months. Most recently, Radio Unit was updated on September 13, 2026 and Relic Flow on September 17, 2026.

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