Qithesizer vs Async Sampler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Qithesizer
This advanced music synthesizer combines virtual analog, wavetable, and physical modeling sound engines. It offers extensive modulation capabilities, a built-in sequencer, and on-screen keyboard for creating complex sounds.
- Multiple sound engines (virtual analog, wavetable, physical modeling)
- Extensive modulation sources and destinations
- Full MIDI mapping
- 16-step sequencer with pattern editor
- Waveform and dynamic visualizations
- On-screen keyboard
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Meet Qithesizer, a powerful multi-engine hybrid software synthesizer. Designed with wind controller in mind, it combines virtual analog, wavetable, and physical modeling in one. 【Features】 ∙ Multiple sound engines: basic waveforms, hundreds of digital waveforms, multiple physical models ∙ 11 modulation sources, 27 modulation destinations ∙ Full midi mapping ∙ 16-step sequencer with powerful pattern editor, save patterns by preset ∙ Waveform and dynamic visualizations ∙ Full-size, on-screen keyboard Our site: www.robkoo.com Facebook Page: @RobkooMusic Twitter: @Robkoo_Music Feedback: cuimingwei@robkoo.com
Async Sampler
Create captivating sound collages, dynamic textures, and rhythmic patterns with this powerful musical instrument. It offers asynchronous and synchronous playback modes, a versatile LFO, and an effects processor to elevate your sound design.
- Standalone and AUv3 versions
- Three independent samplers
- Extensive sample library
- Upload your own samples
- Asynchronous and synchronous playback
- Flexible LFO system
- Effects processor
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Async Sampler, a powerful musical instrument designed to bring your soundscapes to life. This flexible tool is dedicated to crafting captivating sound collages, dynamic asynchronous textures, rhythmic patterns, and rich sound designs. It opens up a world of creative possibilities, making it the perfect companion for music producers, sound designers, ambient, and noise enthusiasts. Whether you're a seasoned musician or a curious explorer, Async Sampler is here to inspire and elevate your musical journey. App comes with a rich library of unique samples, and you can easily upload and use your own sounds. Async Sampler fundamentally consists of three samplers that can reproduce sound asynchronously, meaning they can operate without being tied to a specific BPM, or synchronously, using an external MIDI clock source or the tempo of your project if you're using Async Sampler as an AUv3 plugin. The instrument features a versatile LFO that allows you to control any parameter. Async includes an effects processor and a master bus section. Also, you have the option to use external MIDI controllers, save and load your custom presets and samples, among other features. Key features: — Standalone and AUv3 versions — Three independent samplers — Extensive sample library out of the box — Ability to upload your own samples — Asynchronous and synchronous playback modes for each sample — Flexible LFO system that can control almost any parameter — Effects processor — Ability to save presets — And much more
Screenshots
Verdict
The clearest difference is rating: Async Sampler at 4.5 against Qithesizer's 4.1. Async Sampler also leads on iOS requirement (11.0 vs 15.0). Qithesizer's advantage is price ($12.99 vs $14.99). On review sentiment, ratings volume, update cadence and ads 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
Qithesizer costs $12.99 and Async Sampler $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Async Sampler holds the better App Store score, 4.5 against 4.1. Both are backed by a comparable volume of ratings — 11 and 18 respectively. Written reviews split almost evenly too, at 77% and 78% positive.
Qithesizer ships an update fortnightly, Async Sampler every 2 weeks. The most recent releases landed on October 13, 2026 and September 30, 2026 respectively.
| Parameter | Qithesizer | Async Sampler |
|---|---|---|
| Price | $12.99 — better | $14.99 |
| Rating | 4.1 (11 ratings) | 4.5 (18 ratings) — better |
| Positive reviews | 76.9% of reviews | 77.8% of reviews — better |
| Number of ratings | 11 | 18 — better |
| Update frequency | Fortnightly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 235 MB |
| Age rating | 4+ | 4+ |
| Developer | Robkoo Information & Technologies Co., Ltd. | Sergei Zhulkov |
Customer experience
Qithesizer
Async Sampler
In-app purchases
Qithesizer
No in-app purchases
Async Sampler
No in-app purchases
Questions
Is Qithesizer free?
Is Async Sampler free?
Which has better reviews, Qithesizer or Async Sampler?
Do Qithesizer or Async Sampler have ads?
Which is updated more often, Qithesizer or Async Sampler?
Other comparisons
