# Krill Synthesizer vs Aether Learn

The clearest difference is price: Aether Learn at $2.99 against Krill Synthesizer's $11.99. Krill Synthesizer's advantage is update cadence (weekly vs every 4 weeks) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

Krill Synthesizer costs $11.99 and Aether Learn $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Krill Synthesizer ships an update weekly, Aether Learn every 4 weeks. The most recent releases landed on October 11, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Krill Synthesizer | Aether Learn |
| --- | --- | --- |
| Price | $11.99 | **$2.99** |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/krill-synthesizer/id6443337049/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 weeks |
| Monetization | Paid | — |
| Size | 8 MB | 3 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Genuine Soundware](https://appshunter.io/developer/1560880481) | [Diego Ponciano](https://appshunter.io/developer/1578805003) |

## What reviewers say

### Krill Synthesizer

[App page](https://appshunter.io/ios/app/krill-synthesizer/id6443337049)

This virtual analog polyphonic synthesizer offers a streamlined interface for creating quick synth sounds on iPad. It features two oscillators, an LFO, a low-pass filter, two envelopes, and stereo effects, all accessible from a single screen.

**Highlights:** Virtual analog polyphonic synthesizer, Single-screen interface, Two oscillators, One LFO, Low-pass filter, Stereo chorus and ping-pong delay, 64 presets

**Features:** Vision Pro support

**In-app purchases:** none


### Aether Learn

[App page](https://appshunter.io/ios/app/aether-learn/id6786776504)

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

**In-app purchases:** none


## Frequently asked questions

### Is Krill Synthesizer free?

Krill Synthesizer costs $11.99, with no in-app purchases.

### Is Aether Learn free?

Aether Learn costs $2.99, with no in-app purchases.

### Do Krill Synthesizer or Aether Learn have ads?

Neither Krill Synthesizer nor Aether Learn shows ads.

### Which is updated more often, Krill Synthesizer or Aether Learn?

Krill Synthesizer ships an update weekly, and Aether Learn every 4 weeks. Most recently, Krill Synthesizer was updated on October 11, 2026 and Aether Learn on October 20, 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.*