Krill Synthesizer vs Qithesizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Krill Synthesizer
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.
- Virtual analog polyphonic synthesizer
- Single-screen interface
- Two oscillators
- One LFO
- Low-pass filter
- Stereo chorus and ping-pong delay
- 64 presets
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The GSi Krill Synthesizer was born from a design originally conceived to work as a mono synthesizer on an embedded processor (RP2040), then it was modified to be polyphonic for a more powerful processor (ARM H7) and finally we thought it would be perfect as a AUv3 for iPad, for those quick and dirty synth sounds you sometimes need without getting lost in endless parameter navigation and menu diving. So here it is, just one screen, one knob - one function, what you see is what you get. Two oscillators, one LFO, one low pass filter, two envelopes, stereo chorus, ping-pong delay, 64 presets. Have fun!
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
Screenshots
Verdict
The clearest difference is rating: Krill Synthesizer at 5.0 against Qithesizer's 4.1. Krill Synthesizer also leads on review sentiment (100% vs 77%) and price ($11.99 vs $12.99). On ratings volume, update cadence, ads and in-app purchases 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
Krill Synthesizer costs $11.99 and Qithesizer $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Krill Synthesizer holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 6 and 11 respectively. Written reviews point the same way: 100% of Krill Synthesizer's written reviews are positive against 77% of Qithesizer's.
Krill Synthesizer ships an update weekly, Qithesizer fortnightly. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.
| Parameter | Krill Synthesizer | Qithesizer |
|---|---|---|
| Price | $11.99 — better | $12.99 |
| Rating | 5.0 (6 ratings) — better | 4.1 (11 ratings) |
| Positive reviews | 100.0% of reviews — better | 76.9% of reviews |
| Number of ratings | 6 | 11 — better |
| Update frequency | Weekly — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 8 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Genuine Soundware | Robkoo Information & Technologies Co., Ltd. |
Customer experience
Krill Synthesizer
Qithesizer
In-app purchases
Krill Synthesizer
No in-app purchases
Qithesizer
No in-app purchases
