Comparison

Music from CDSS Gems vs SL Echo

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

Head to head
About

Music from CDSS Gems

Features
Read full description

CDSS Gems is a compilation of tunes from the Country Dance and Song Society's 75th Anniversary publication. CDSS is pleased to offer these tunes in celebration of their Centennial Celebration. You can find instructions for this app at http://www.TransportedProductions.com/iDeas

About

SL Echo

This app provides an AUv3 delay effect for iPad, allowing musicians to quickly create a range of echo sounds from short slapbacks to long, evolving trails. It offers intuitive controls for time, feedback, tone, and stereo width, and works both standalone and within compatible music hosts.

Highlights
  • AUv3 delay effect
  • Intuitive controls for time and feedback
  • Tone shaping for repeats
  • Stereo width and ducking
  • Standalone preview and AUv3 integration
  • Factory and user presets
Features
Read full description

SL Echo is a focused AUv3 delay effect designed for fast musical decisions on iPad. Move from a close vocal pocket to wide, evolving repeats without navigating complex pages. • Time and feedback for slapback or long trails • Tone shaping for darker or brighter repeats • Stereo width and ducking for a clear dry signal • Factory presets and local user presets • AUv3 support for compatible iPad music hosts Works as a standalone preview app and as an AUv3 effect in GarageBand, AUM, Cubasis, BeatMaker 3 and other compatible hosts.

Screenshots

SL Echo3 screens

Verdict

The call

The clearest difference is price: Music from CDSS Gems at Free against SL Echo's $6.99. SL Echo's advantage is update cadence (weekly vs every 38 months) and device support (3 vs 1). On 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

Music from CDSS Gems is free to download; SL Echo costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Music from CDSS Gems ships an update every 38 months, SL Echo weekly. The most recent releases landed on October 29, 2026 and November 10, 2026 respectively.

Scorecard4 real differences · 5 level
Music from CDSS Gems versus SL Echo: the parameters behind the verdict, then further details
ParameterMusic from CDSS GemsSL Echo
PriceFree — better$6.99
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 38 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPadiPhone, iPad, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size26 MB19 MB
Age rating4+4+
DeveloperTransported ProductionsVIACHESLAV ZHILTSOV

In-app purchases

None

Music from CDSS Gems

No in-app purchases

None

SL Echo

No in-app purchases

Questions

Is Music from CDSS Gems free?
Music from CDSS Gems is free to download, with no in-app purchases.
Is SL Echo free?
SL Echo costs $6.99, with no in-app purchases.
Do Music from CDSS Gems or SL Echo have ads?
Neither Music from CDSS Gems nor SL Echo shows ads.
Which is updated more often, Music from CDSS Gems or SL Echo?
Music from CDSS Gems ships an update every 38 months, and SL Echo weekly. Most recently, Music from CDSS Gems was updated on October 29, 2026 and SL Echo on November 10, 2026.

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