# IMPULSation vs Doubler

IMPULSation and Doubler both sit at 3.7 stars, but that hides the real split: 50% of IMPULSation's written reviews are positive against 0% of Doubler's. IMPULSation also leads on chart position (#176 vs unranked) and iOS requirement (11.0 vs 15). Doubler's advantage is update cadence (monthly vs every 4 months). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 3.7 for IMPULSation against 3.8 for Doubler. Both are backed by a comparable volume of ratings — 14 and 6 respectively. Written reviews are what separate them: 50% of IMPULSation's written reviews are positive against 0% of Doubler's.

IMPULSation ships an update every 4 months, Doubler monthly. The most recent releases landed on September 26, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | IMPULSation | Doubler |
| --- | --- | --- |
| Price | $9.99 | $9.99 |
| Rating | [3.7 (14 ratings)](https://appshunter.io/ios/app/impulsation/id1469723900/reviews) | **[3.8 (6 ratings)](https://appshunter.io/ios/app/doubler/id1611386721/reviews)** |
| Number of ratings | **14** | 6 |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Paid | Paid |
| Best chart rank | **#176** | — |
| Size | 139 MB | 22 MB |
| Requires iOS | **11.0** | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MIDIculous LLC](https://appshunter.io/developer/579058990) | [Nembrini Audio](https://appshunter.io/developer/1493296895) |

## What reviewers say

### IMPULSation

[App page](https://appshunter.io/ios/app/impulsation/id1469723900)

**Currently charting:** #176 Top Paid · Music (US App Store)

This app is a powerful convolution reverb that lets you load custom impulse responses for endless sound possibilities. Recreate classic amp tones, spaces, and delays with optimized signal processing. It offers a user-friendly interface with essential controls for precise sound shaping.

**Highlights:** Load custom impulse responses (.wav, .aif), AUv3 and AAX plugin support, 88 factory presets, MIDI Learn and Program Change, Pre-Delay, Wet/Dry, Decay controls, Stereo Widener, iCloud Backup and Sharing

**Features:** Vision Pro support

**In-app purchases:** none


### Doubler

[App page](https://appshunter.io/ios/app/doubler/id1611386721)

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:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is IMPULSation free?

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

### Is Doubler free?

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

### Which has better reviews, IMPULSation or Doubler?

Doubler is rated higher. IMPULSation averages 3.7 out of 5 from 14 ratings, while Doubler averages 3.8 from 6 ratings.

### Do IMPULSation or Doubler have ads?

Neither IMPULSation nor Doubler shows ads.

### Which is updated more often, IMPULSation or Doubler?

IMPULSation ships an update every 4 months, and Doubler monthly. Most recently, IMPULSation was updated on September 26, 2026 and Doubler on October 13, 2026.

---

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