Comparison

501 Chorus Echo vs SR

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

Head to head
About

501 Chorus Echo

This audio plugin meticulously models the iconic Roland RE-501 Chorus Echo, offering authentic analog warmth with modern digital flexibility. It provides producers with classic tape delay, BBD chorus, and spring reverb sounds, enhanced by DAW tempo sync and expanded controls for any music genre.

Highlights
  • Authentic analog sound reproduction
  • Extended creative control with DAW sync
  • Intuitive user interface
  • Versatile for any music genre
  • Independent SOS timings
  • Linear preamp option
Read full description

"Legendary Analog Warmth: Authentic Spring Reverb, Classic Tape Delay, and Lush BBD Chorus in a Cutting-Edge Plugin" Rediscover the iconic sound of the Roland RE-501 Chorus Echo*, now reborn as the NA 501 Chorus Echo plugin by Nembrini Audio. This meticulously modeled plugin captures the essence of the legendary tape echo, BBD chorus, and spring reverb, enhanced with modern digital functionality for today's music producers. Ideal for adding rich, analog textures to any genre, the NA 501 is a versatile tool for musicians and producers seeking that classic sound with contemporary flexibility. Key Features:: 1 - Authentic Sound Reproduction: Delivers the classic warmth and character of the Roland RE-501 through precise digital modeling. 2 - Extended Creative Control: Offers advanced features like DAW tempo sync, expanded chorus and delay parameters, and independent SOS timings. 3 - Intuitive User Interface: Designed for ease of use, blending vintage aesthetics with modern digital efficiency. 4 - Versatility for Any Genre: Whether you're producing rock, electronic, ambient, or beyond, the NA 501 fits seamlessly into any musical project. Equipped with features tailored for modern production, the NA 501 includes DAW tempo synchronization, a wide parameter range for the BBD chorus and analog tape delay, separate left and right SOS timings, and a linear preamp option. These technical enhancements ensure that the NA 501 not only emulates the classic sound but elevates it to new levels. Works as a standalone app, AudioUnit v3 effect, or Inter-App Audio effect Legal Disclaimer: RE-501 Chorus Echo is a registered trademark of Roland Inc. NA 501 Chorus Echo was developed by Nembrini Audio SRL based on its modeling techniques. Roland has not endorsed nor sponsored the NA 501 Chorus Echo in any manner, nor licensed any intellectual property for use in this product.

About

SR

This app emulates a rare 80s analog drum machine, offering classic sounds with extensive sound-shaping controls. Build patterns with its sequencer and export them as MIDI files.

Highlights
  • 5 classic analog drum sounds
  • Pitch, pan, and mix sounds independently
  • Low Pass Filter, Overdrive, Compressor, Reverb
  • Sequencer for pattern building
  • MIDI file export
Read full description

SR-88 is a sample-based plugin emulation of the Sound Master Memory Rhythm SR-88, a rare analog drum machine from the 80s. The instrument features 5 classic analog sounds: Kick, Snare, Hi Hat 1, Hi Hat 2, and Cymbal, which can be pitched, panned or mixed independently. You can additionally shape the sound with the Low Pass Filter (Zero Delay Feedback), Overdrive, Compressor and Reverb. The sequencer lets you easily build patterns that can be exported as MIDI files.

Screenshots

501 Chorus Echo1 screens
SR1 screens

Verdict

The call

The clearest difference is ads: SR at none against 501 Chorus Echo's shown. SR also leads on review sentiment (33% vs 0%). 501 Chorus Echo's advantage is price ($8.99 vs $14.99). On rating, ratings volume, in-app purchases and monetization model 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

501 Chorus Echo costs $8.99 and SR $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

501 Chorus Echo holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 8 and 9 respectively. Written reviews complicate that: 0% of 501 Chorus Echo's written reviews are positive against 33% of SR's, so the app with the better star average is not the one people write more warmly about.

Scorecard3 real differences · 7 level
501 Chorus Echo versus SR: the parameters behind the verdict, then further details
Parameter501 Chorus EchoSR
Price$8.99 — better$14.99
Rating4.5 (8 ratings) — better4.3 (9 ratings)
Positive reviews0.0% of reviews33.3% of reviews — better
Number of ratings89 — better
Update frequencyEvery 3 days—
AdsYesNo — better
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size19 MB51 MB
Age rating4+4+
DeveloperNembrini AudioAudioThing Ltd.

Customer experience

501 Chorus Echo

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

SR

All ratings9 ratings
Positive77.8%
Neutral11.1%
Negative11.1%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

501 Chorus Echo

No in-app purchases

None

SR

No in-app purchases

Questions

Is 501 Chorus Echo free?
501 Chorus Echo costs $8.99, with no in-app purchases.
Is SR free?
SR costs $14.99, with no in-app purchases.
Which has better reviews, 501 Chorus Echo or SR?
501 Chorus Echo is rated higher. 501 Chorus Echo averages 4.5 out of 5 from 8 ratings, while SR averages 4.3 from 9 ratings.
Do 501 Chorus Echo or SR have ads?
501 Chorus Echo shows ads; SR does not.

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