# jAmpler — AUv3 Sampler & Granular Synth

> AUv3 sampler and granular synth for iOS and macOS with extensive sample manipulation. (iPhone/iPad app by Jan Maes.)

- Source: https://appshunter.io/ios/app/jampler/id6757974471 (this page in markdown: same URL + `.md`)
- Developer: [Jan Maes](https://appshunter.io/developer/1550506252)
- Category: Music
- Price: Free with in-app purchases
- Rating: 4.50/5 from 4 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 1.4 GB
- Languages: American English
- Released: 2026-02-11
- Data updated: 2026-08-03
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/jampler/id6757974471/reviews.md

## What is jAmpler?

jAmpler is a sample-based instrument plugin for iOS and macOS, designed as an Audio Unit v3 (AUv3) instrument. It enables you to record, import, assign, and manipulate samples with a rich set of controls and global effects — all accessible in a compact, intuitive interface.

Features:

* 4 banks, each with 8 samples.
* Each sample is represented by a unique color.
* Record samples directly using your device’s built-in microphone.
* Import audio files to use as samples.
* Assign samples to keyboard keys using their color codes.
* Detailed controls per sample:
    - Copy, paste, and trim samples.
    - ADSR envelope (Attack, Decay, Sustain, Release).
    - Crossfade and crossfade overlap for seamless looping.
    - Octave shifting and drive/distortion.
    - Filter and pitch shift options.
    - Granular synthesis controls (wet, density, size, spray, stereo spread, window shape).
* Global effects:
    - Velocity Controlled Filter.
    - Low Frequency Oscillator.
    - Compressor.
    - Distortion.
    - Equalizer.
    - Chorus.
    - Cabinet.
    - Reverb.
* Adjustable velocity curve and keyboard temperament.

## Key features

- Record and import audio samples
- Assign samples to keyboard keys
- Granular synthesis controls
- Extensive per-sample editing
- Global effects suite
- Adjustable velocity curve and temperament

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| jAmpler Activation | $7.99 | one-time |


## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/jampler/id6757974471/reviews.md

### 4/5 — Pretty alright

*2026-03-28*

I think this is a nice sampler. Though it could do with a little trimming here and there because it takes up way too much space

### 4/5 — Decently good UX, colossal filesize

*2026-03-07*

Auto-trim + auto-tune sample a nice feature. Good sample import support. Some crashing / missing icons here and there on iOS 16.6.1, would be nice to be able to delete whole sample folders instead of each sample tediously one-by-one, but overall nice experience. Unfortunately app will spend the majority of the time offloaded due to massive factory sample library, which cannot be deleted.

### 4/5 — Decently good UX, colossal filesize

*2026-03-06*

Auto-trim + auto-tune sample a nice feature. Good sample import support. Microphone always on = not ideal, some crashing here and there, would be nice to be able to delete whole sample folders instead of tediously one-by-one, but overall nice experience. Unfortunately app will spend the majority of the time offloaded due to massive factory sample library, which cannot be deleted.

## Frequently asked questions about jAmpler

### What is jAmpler?

jAmpler is a sample-based instrument plugin for iOS and macOS that functions as an AUv3 instrument. It allows users to record, import, and manipulate audio samples with a variety of controls and effects.

### How many samples can jAmpler hold?

jAmpler features 4 banks, and each bank can hold 8 individual samples, totaling 32 samples per instrument setup.

### Can I record audio directly into jAmpler?

Yes, you can record samples directly into jAmpler using your device's built-in microphone. You can also import existing audio files to use as samples.

### What kind of editing options are available for samples in jAmpler?

Each sample in jAmpler can be copied, pasted, and trimmed. It also offers ADSR envelope controls, crossfade and crossfade overlap for looping, octave shifting, drive/distortion, filter, and pitch shift options.

### Does jAmpler support granular synthesis?

Yes, jAmpler includes granular synthesis controls, allowing you to adjust parameters like wetness, density, size, spray, stereo spread, and window shape for unique sound design.

### What global effects are included in jAmpler?

jAmpler comes with a suite of global effects including Velocity Controlled Filter, Low Frequency Oscillator, Compressor, Distortion, Equalizer, Chorus, Cabinet, and Reverb.

### What devices is jAmpler compatible with?

jAmpler is available for iPhone, iPad, and iPod. It is designed to work within the iOS and macOS ecosystems.

### When was jAmpler last updated?

jAmpler was last updated on February 14, 2026, with the latest version being 1.1.

## Version history (last 3 releases)

### 1.2 — 2026-07-22

- Fixed a bug where the first 0.25 seconds of a MIDI-to-audio render were silent.
- Fixed a bug where, when bouncing in a DAW, the instrument was sometimes not fully loaded.
- Fixed preset save/load when using a DAW host.
- Added an option in General Settings to choose a different pitch-shifting algorithm. Three pitch-shifting algorithms are currently available. The previous pitch-shifting behavior remains the default.

### 1.1 — 2026-02-14

- Bug fix: import audio samples works correctly now on iOS devices.
- Option to add mic input to the output signal.
- Loading or exporting of data is now done asynchronous and a waiting screen is shown to the user.
- SF2 (SoundFont) import functionality.

### 1.0 — 2026-02-12

No release notes.

## More apps by Jan Maes

- [Groovy Metronome](https://appshunter.io/ios/app/groovy-metronome/id1550506250)
- [Losing chess](https://appshunter.io/ios/app/losing-chess/id1556993151)
- [Groovy Pianotuner](https://appshunter.io/ios/app/groovy-pianotuner/id1565645496)
- [ASMR Marble](https://appshunter.io/ios/app/asmr-marble/id1576763348)
- [jAmp 8100](https://appshunter.io/ios/app/jamp-8100/id6450633716)
- [Cab ML](https://appshunter.io/ios/app/cab-ml/id6469339928)

All apps by Jan Maes: https://appshunter.io/developer/1550506252

## Related topics

[decent sampler](https://appshunter.io/ios/topics/decent-sampler)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-03.*