KQ Sampei 26 vs SynthStamp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KQ Sampei 26
This powerful sampler synthesizer allows musicians to load and switch between various sound set formats, including SoundFont and DLS. It offers multi-timbral operation across multiple MIDI channels and supports standard and riff MIDI files for flexible music production and live performance.
- Supports SoundFont (sf2), Compressed SoundFont (sf3), and DLS formats
- Multi-timbral operation across multiple MIDI channels
- Plays Standard MIDI Files (SMF) and RIFF MIDI Files
- AUv3 plugin for use with DAWs
- Micro-tuning with AnaMark TUN files
- Load on Demand / Streaming mode for large sound sets
- External and virtual MIDI connections
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KQ Sampei is a powerful sampler synthesizer for iOS that allows you to load and switch sound sets with ease. It supports multi-timbral operation across multiple MIDI channels, giving you rich flexibility for music production and live performance. Key Features - Supports SoundFont (sf2), Compressed SoundFont (sf3), and Downloadable Sound (DLS) formats - Multi-timbral operation across multiple MIDI channels with high polyphony depending on device performance - Compatible with GM, GS, XG, and MPE MIDI message sets - Plays Standard MIDI Files (SMF) and RIFF MIDI Files with multiple ports and loop support - AUv3 for use with GarageBand, AUM, Cubasis, and other apps - Micro-tuning with AnaMark TUN files for alternate tuning systems - Load on Demand / Streaming mode for handling large sound sets beyond device RAM limits - Supports external and virtual MIDI connections - Includes “GeneralUser GS v1.471” sound set with prepared modifiers - No user data collection beyond what iOS/iPadOS inherently collects Perfect For - MIDI/DTM users who want to play old SMF/GS/XG files - Musicians using SoundFont or DLS libraries - Mobile producers looking for a plugin synth with deep customization - Users needing micro-tuning or alternate temperament support Tips - For best compatibility with other SoundFont players, use Engine V3 and disable Custom GS Controllers, Slow LPF, and Smooth Volume Level. - With large sound sets, streaming mode is recommended. Machine generated text is included in this application and description.
SynthStamp
Explore vintage synthesizers with fully modeled engines and familiar interfaces. Patch, save, and share your creations across devices. Features real-time effects processing and models based on iconic hardware.
- Fully modeled vintage synth engines
- Patchable semi-modular synthesizer
- Circuit-bendable sampling keyboard
- Real-time effects processing
- Audio Unit (AUv3) plugin support
- Cross-device preset sharing
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The Vintage Synth Playground You Can Take Anywhere SynthStamp is a celebration of the history of electronic music, featuring fully modeled engines and familiar interfaces of some of the most desirable synthesizers. Tap and drag to patch, save your patch as a preset, and export presets to share across all of your devices including Mac, iPhone, and iPad. Yes, that's right—iPhone. --- Model based on the ARP 2600—finally on mobile Circuit-bendable model based on the SK-1—we haven't seen one either Stereo audio input for realtime effects processing --- Choose Your Adventure 5001 Analog Synthesizer: dynamically patchable, semi-modular, monophonic analog synthesizer from the late '70s, with stereo preamplifier. A real idea factory, from classic analog synth leads to creative sound design, this synth is a tool for exploration and experimentation. You'll truly fall in love with the snappy, milky quality of the voltage-controlled filter. B500 Sampling Keyboard: circuit-bendable ROMpler from the mid '80s, with 4-voice polyphony, multi-channel note memory, and stereo sampler. Bend, sample, and compose melodies with this portable gem. Combine with continuous live sampling to create sounds that simply shouldn't exist. Flexibly Configurable, Infinitely Creative SynthStamp can be run as a standalone application or as an Audio Unit (AUv3) plugin inside supported DAWs, either as an Instrument with mono side chain input, or as a Music Effect on stereo/mono audio tracks for realtime processing, with full MIDI support. Presets can be imported and exported for easy sharing across devices, while on the same device, presets are stored in a common location across standalone and Audio Unit installations for shared access. Features - Universal App available on Mac, iPad & iPhone - Run as Standalone or Audio Unit (AUv3) App Extension - Stereo Audio Input/Output - MIDI Support - DAW Clock/Tempo Sync - Folder-Based Preset System - Preset Import/Export - Zoomable Mobile Interface - NEW MIDI Clock Support Privacy Policy: https://themusicologygroup.com/privacy/
Screenshots
Verdict
The clearest difference is rating: KQ Sampei 26 at 4.8 against SynthStamp's 4.4. KQ Sampei 26 also leads on review sentiment (67% vs 44%). SynthStamp's advantage is price ($4.99 vs $9.99) and update cadence (weekly vs every 3 weeks). On ads, in-app purchases, monetization model and device support 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
KQ Sampei 26 costs $9.99 and SynthStamp $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
KQ Sampei 26 holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 4 and 12 respectively. Written reviews point the same way: 67% of KQ Sampei 26's written reviews are positive against 44% of SynthStamp's.
KQ Sampei 26 ships an update every 3 weeks, SynthStamp weekly. Both last shipped on October 25, 2026.
| Parameter | KQ Sampei 26 | SynthStamp |
|---|---|---|
| Price | $9.99 | $4.99 — better |
| Rating | 4.8 (4 ratings) — better | 4.4 (12 ratings) |
| Positive reviews | 66.7% of reviews — better | 43.8% of reviews |
| Number of ratings | 4 | 12 — better |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryouta Kira | The Musicology Group, Inc. |
Customer experience
KQ Sampei 26
SynthStamp
In-app purchases
KQ Sampei 26
No in-app purchases
SynthStamp
No in-app purchases
Questions
Is KQ Sampei 26 free?
Is SynthStamp free?
Which has better reviews, KQ Sampei 26 or SynthStamp?
Do KQ Sampei 26 or SynthStamp have ads?
Which is updated more often, KQ Sampei 26 or SynthStamp?
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