Therimax vs SynthStamp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Therimax
Create music using hand gestures, the camera, or touch screen. No prior musical knowledge or physical contact is required. Experience the future of gestural music creation.
- Gesture-based music creation
- Camera input
- Touch screen control
- Magnet input
- No prior musical knowledge needed
- Intuitive hand-waving interface
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Therimax is a musical instrument designed for the iOS. Using the camera, a hand-held magnet, or the touch screen, Therimax allows you to create music without physical touch, without frustrating callouses or irritating music lessons, and without knowing a lick of music. All simply by waving your hands in the air. The era of gestural music is at hand!
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 price: Therimax at Free against SynthStamp's $4.99. Therimax also leads on review sentiment (83% vs 47%) and iOS requirement (11.0 vs 16.0). SynthStamp's advantage is in-app purchases (none vs 3) and update cadence (weekly vs every 2 months). On ratings volume, ads 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
Therimax is free to download; SynthStamp costs $4.99 up front. Therimax sells 3 one-off in-app purchases. SynthStamp asks for nothing beyond the download.
SynthStamp holds the better App Store score, 4.5 against 4.2. Both are backed by a comparable volume of ratings — 9 and 13 respectively. Written reviews complicate that: 83% of Therimax's written reviews are positive against 47% of SynthStamp's, so the app with the better star average is not the one people write more warmly about.
Therimax ships an update every 2 months, SynthStamp weekly. The most recent releases landed on November 1, 2026 and November 9, 2026 respectively.
| Parameter | Therimax | SynthStamp |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 4.2 (9 ratings) | 4.5 (13 ratings) — better |
| Positive reviews | 83.3% of reviews — better | 47.1% of reviews |
| Number of ratings | 9 | 13 — better |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Best chart rank | — | #197 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 16 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | 3rd Street Productions LLC | The Musicology Group, Inc. |
Customer experience
Therimax
SynthStamp
In-app purchases
Therimax
- Banners Off$1.99
- Sound Effects On$1.99
- Enable Therimax as a Midi controller$1.99
SynthStamp
No in-app purchases









