Comparison

Doubler vs EchoFlower

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

Head to head
About

Doubler

This real-time audio effect plugin creates a natural doubling sound for instruments and vocals. It adds richness and depth, making guitar parts sound massive and enabling flam-like effects on drums. Adjust variation parameters for precise control over the desired doubling effect.

Highlights
  • Real-time stereo doubling
  • Enhances guitar, vocals, and polyphonic instruments
  • Adds richness and depth
  • Creates massive sound for riffs and solos
  • Automatic vocal and instrument doubling
  • Flam-like effects for drums
  • Adjustable variation parameters
Features
Read full description

The Nembrini Audio Doubler tracker turns your guitar performance into a stereo, double-tracked signal in real time, as if two guitarists were playing the same track left and right. Nembrini Audio Doubler is a plug-in designed to enhance your guitar, vocal or polyphonic instrument with a natural doubling effect, adding richness and depth. - Makes your guitar riffs and solos sound massive - Double vocal parts and polyphonic instrument automatically - Add flam-like effects to drums Just put Nembrini Audio real-time Doubler tracking plugin on your track, and adjust the variation parameters controls to create exactly the doubling effect you’re looking for Instant doubling. Works as a standalone app, AudioUnit v3 effect, or Inter-App Audio effect

About

EchoFlower

Enhance your audio with a versatile delay and vintage stereo texture effect. Easily add depth, width, and character to any sound with intuitive controls and professional-grade processing.

Highlights
  • Musical delay system
  • Vintage stereo widening
  • Reverb, Flanger, Chorus textures
  • Multi-band stereo control
  • Intuitive tap tempo
  • Mix-ready processing
Features
Read full description

EchoFlower: Musical Delay + Vintage Stereo Texture In Full Bloom! Add beautiful and musical delay to your tracks with EchoFlower - where classic delay meets vintage-inspired texture. From rhythmic echoes to lush spatial reflections, discover how easy it is to add gorgeous, analog-style dimension and feel to any sound! Professional-grade processing wrapped in an intuitive, inspiring interface. Instantly Transform Your Sound: * Turn static sounds into evolving rhythmic fields * Add vintage-style stereo widening that breathes life into digital recordings * Easily add carefully tuned Reverb, Flanger, or Chorus textures * Create immersive, flowing echoes that dance between channels * Tap or Dial in perfectly synced rhythms that enhance any instrument or voice * Give your instruments that perfect touch of depth and character Made for Everyone: * Producers: Add and control rhythmic dimension that moves in perfect time * Beatmakers: Create rhythmic counterpoints that elevate your patterns * Mix Engineers: Place sounds precisely in the spatial field * Live Performers: Tap in tempo changes that follow your performance * Beginners: Get beautiful and balanced pro results instantly * Experts: Discover endless creative depths beneath the thoughtful interface Professional Features Made Musical: 1. “Echo” Delay System - Our unique delay system delivers everything from classic slapback delay to expansive ping pong echoes. Always musical, always perfectly balanced, easy to set up, and fitting for any genre. 2. “Flower” Blooming Engine - Shape your sound with our analog-inspired processing. Produce stereo widening for tight sounds while adding subtle warmth and Clean, Reverb, Flanger, or Chorus effect textures. From gentle vintage character to deep, yet balanced textures. The perfect amount of analog flavor is at your fingertips. 3. Simple Multi-Band Stereo Control - Experience musical space shaping with Ping Pong mode. Powered by precise timing and dynamic stereo placement, it delivers everything from subtle width enhancement to immersive head bouncing transformations. 4. Mix-Ready Processing - Our intelligent "Sit" control and adaptive output stage ensure professional results every time. Shape the perfect frequency balance, push sounds forward, or pull them back - everything sits flawlessly in your mix. 5. Intuitive Tap Tempo - Playing off the clock? Feel the rhythm and tap it in. Complex timing relationships are surprisingly simple with our musician-friendly design. 6. ValueView parameter display delivers instant feedback that floats above your finger, ensuring precise control without losing sight of your adjustments, even on the smallest screens. Technical Excellence: * AUv3 Plugin Format works in your favorite DAWs (Logic Pro, GarageBand, LoopyPro, Cubasis 3, and other iOS/iPadOS DAWs that support AUv3) * Support for automation of all parameters * Global Preset Manager with factory and user presets (including 10 carefully crafted factory presets) * Precision parameter smoothing for artifact-free modulation * Professional +/-12dB output with automatic gain compensation * High-quality interpolation for a smooth and musical delay experience * Intelligent Dual-shelf tone control for perfect mix placement * Zero-latency real-time processing Transform Your Sound Today: Whether you're adding subtle rhythmic enhancement or pushing creative boundaries into experimental territory, EchoFlower adapts to your style or genre. Get started in seconds, then discover the depths of this unique Hybrid Delay + Vintage Stereo Texture plugin as you explore. Give Your Mix a Textured Rhythmic Dimension with Beautiful Delays That Bloom In Time With Your Music!

Screenshots

Doubler1 screens
EchoFlower3 screens

Verdict

The call

The clearest difference is review sentiment: EchoFlower at 50% against Doubler's 0%. EchoFlower also leads on rating (4.6 vs 3.8). Doubler's advantage is price ($7.99 vs $9.99) and iOS requirement (9.3 vs 12.0). On ratings volume, update cadence, 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

Doubler costs $7.99 and EchoFlower $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

EchoFlower holds the better App Store score, 4.6 against 3.8. Both are backed by a comparable volume of ratings — 6 and 5 respectively. Written reviews point the same way: 0% of Doubler's written reviews are positive against 50% of EchoFlower's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 24, 2026 and September 17, 2026 respectively.

Scorecard4 real differences · 6 level
Doubler versus EchoFlower: the parameters behind the verdict, then further details
ParameterDoublerEchoFlower
Price$7.99 — better$9.99
Rating3.8 (6 ratings)4.6 (5 ratings) — better
Positive reviews0.0% of reviews50.0% of reviews — better
Number of ratings6 — better5
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.3 — better12.0
Further details — not scored
Size32 MB12 MB
Age rating4+4+
DeveloperNembrini AudioSimon Alexander

Customer experience

Doubler

All ratings6 ratings
Positive50.0%
Neutral33.3%
Negative16.7%
Written reviews3 reviews
Positive0.0%
Neutral33.3%
Negative66.7%

EchoFlower

All ratings5 ratings
Positive80.0%
Neutral20.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

None

Doubler

No in-app purchases

None

EchoFlower

No in-app purchases

Questions

Is Doubler free?
Doubler costs $7.99, with no in-app purchases.
Is EchoFlower free?
EchoFlower costs $9.99, with no in-app purchases.
Which has better reviews, Doubler or EchoFlower?
EchoFlower is rated higher. Doubler averages 3.8 out of 5 from 6 ratings, while EchoFlower averages 4.6 from 5 ratings.
Do Doubler or EchoFlower have ads?
Neither Doubler nor EchoFlower shows ads.
Which is updated more often, Doubler or EchoFlower?
Doubler ships an update every 3 weeks, and EchoFlower every 3 weeks. Most recently, Doubler was updated on September 24, 2026 and EchoFlower on September 17, 2026.

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