# EchoFlower vs KP Viewer

The clearest difference is review sentiment: KP Viewer at 100% against EchoFlower's 50%. KP Viewer also leads on rating (5.0 vs 4.6) and update cadence (weekly vs every 3 weeks). EchoFlower's advantage is price ($9.99 vs $19.99) and iOS requirement (12.0 vs 15.0). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

EchoFlower costs $9.99 and KP Viewer $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

KP Viewer holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 5 and 3 respectively. Written reviews point the same way: 50% of EchoFlower's written reviews are positive against 100% of KP Viewer's.

EchoFlower ships an update every 3 weeks, KP Viewer weekly. The most recent releases landed on October 4, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | EchoFlower | KP Viewer |
| --- | --- | --- |
| Price | **$9.99** | $19.99 |
| Rating | [4.6 (5 ratings)](https://appshunter.io/ios/app/echoflower/id6742573030/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/kp-viewer/id6807597087/reviews)** |
| Number of ratings | **5** | 3 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Paid | Paid |
| Size | 12 MB | 3 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Simon Alexander](https://appshunter.io/developer/1789202493) | [DEREK BERNARD](https://appshunter.io/developer/6807597090) |

## What reviewers say

### EchoFlower

[App page](https://appshunter.io/ios/app/echoflower/id6742573030)

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:** Vision Pro support

**In-app purchases:** none


### KP Viewer

[App page](https://appshunter.io/ios/app/kp-viewer/id6807597087)

This app provides a clear, at-a-glance display for Kemper Profiler Player users during live performances. It shows current bank, rig name, effect status, morph status, and an automatic tuner, turning older devices into a dedicated stage display.

**Highlights:** Live performance display, Bank and Rig information, Rig name display, Effect status indicators, Automatic tuner, Dedicated stage display

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is EchoFlower free?

EchoFlower costs $9.99, with no in-app purchases.

### Is KP Viewer free?

KP Viewer costs $19.99, with no in-app purchases.

### Which has better reviews, EchoFlower or KP Viewer?

KP Viewer is rated higher. EchoFlower averages 4.6 out of 5 from 5 ratings, while KP Viewer averages 5.0 from 3 ratings.

### Do EchoFlower or KP Viewer have ads?

Neither EchoFlower nor KP Viewer shows ads.

### Which is updated more often, EchoFlower or KP Viewer?

EchoFlower ships an update every 3 weeks, and KP Viewer weekly. Most recently, EchoFlower was updated on October 4, 2026 and KP Viewer on October 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*