Comparison

ERS_250 vs WaveFace

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

Head to head
About

ERS_250

This audio plugin faithfully replicates the EMT 250, the first digital hardware reverb ever made. It offers adjustable decay time, frequency response, predelay, and a dry-wet ratio, with an optional modern schematic.

Highlights
  • Replication of original EMT 250 schematics
  • Adjustable reverb decay time (0.4-5s)
  • Adjustable low and high frequency response
  • Adjustable predelay
  • Additional low-pass filter
  • Adjustable Dry-Wet ratio
  • Optional 'modern' schematics
Features
Read full description

The ERS 250 reverb audio plugin was originally designed and sold by Harrie Munnik and his Dutch company EmptyRoomSystems. DDMF, having been a part in the development of the first version some years ago, is proud to carry on the legacy by distributing and further developing the set of ERS plugins. This unit is a faithful replication of the first digital hardware reverb ever made, the EMT 250. Only 250 units of that legendary studio tool have ever been produced… needless to say, the availability as an audio plugin has received an enthusiastic welcome by the audio engineering and production community. Now this plugin is finally available for compatible iOS hosts that support either AUv3 or InterAppAudio. Features: - Careful reproduction of the original schematics - Adjustable reverb decay time (from 0.4 to 5 seconds), low frequency response, high frequency response, and predelay - Additional low-pass filter to create darker sounds - Dry-Wet ratio adjustable - Alternative “modern” schematics available

About

WaveFace

Read full description

WaveFace - Interactive Waveform Synthesizer Transform sound into visual art with WaveFace, an innovative synthesizer that brings waveforms to life through an expressive animated character. Features: • 23 unique waveform types - from classic sine and square waves to advanced SuperSaw, FM, and formant synthesis • Interactive character with frequency-responsive animations - watch the mouth shrink with higher pitches • Dual play modes: Individual waveform exploration and chromatic keyboard mode • Visual waveform feedback with real-time frequency scaling • Sustain functionality with intuitive double-tap controls • Smooth, artifact-free audio engine optimized for iOS • Universal app supporting both iPhone and iPad with optimized layouts • Face color dynamically matches selected waveform in keyboard mode Perfect for: • Electronic musicians exploring synthesis techniques • Sound designers creating unique audio textures • Music educators demonstrating waveform characteristics • Anyone curious about the visual nature of sound • Performers seeking expressive touch-based instruments Experience the marriage of visual art and electronic music. See your sound, hear your touch, and discover synthesis through WaveFace's unique interactive approach. Whether you're crafting cutting leads with SuperSaw, or exploring the harmonic complexity of chord synthesis, WaveFace makes every waveform a visual journey.

Screenshots

ERS_2502 screens
WaveFace4 screens

Verdict

The call

The clearest difference is price: WaveFace at $4.99 against ERS_250's $13.99. WaveFace also leads on update cadence (daily vs every 8 months). ERS_250's advantage is iOS requirement (9.3 vs 15.0). On 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

ERS_250 costs $13.99 and WaveFace $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ERS_250 ships an update every 8 months, WaveFace daily. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
ERS_250 versus WaveFace: the parameters behind the verdict, then further details
ParameterERS_250WaveFace
Price$13.99$4.99 — better
Rating4.3 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 8 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.3 — better15.0
Further details — not scored
Size9 MB1 MB
Age rating4+4+
DeveloperChristian SiedschlagJohanna Quiceno

In-app purchases

None

ERS_250

No in-app purchases

None

WaveFace

No in-app purchases

Questions

Is ERS_250 free?
ERS_250 costs $13.99, with no in-app purchases.
Is WaveFace free?
WaveFace costs $4.99, with no in-app purchases.
Do ERS_250 or WaveFace have ads?
Neither ERS_250 nor WaveFace shows ads.
Which is updated more often, ERS_250 or WaveFace?
ERS_250 ships an update every 8 months, and WaveFace daily. Most recently, ERS_250 was updated on October 24, 2026 and WaveFace on October 25, 2026.

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