# Therimax vs SynthStamp

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.

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.

## The numbers

| Metric | Therimax | SynthStamp |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [4.2 (9 ratings)](https://appshunter.io/ios/app/therimax/id528864495/reviews) | **[4.5 (13 ratings)](https://appshunter.io/ios/app/synthstamp/id6760490718/reviews)** |
| Number of ratings | 9 | **13** |
| Positive reviews | **83.3% of reviews** | 47.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#197** |
| Size | 16 MB | 59 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [3rd Street Productions LLC](https://appshunter.io/developer/523218009) | [The Musicology Group, Inc.](https://appshunter.io/developer/1061725506) |

## What reviewers say

### Therimax

[App page](https://appshunter.io/ios/app/therimax/id528864495)

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.

**Highlights:** Gesture-based music creation, Camera input, Touch screen control, Magnet input, No prior musical knowledge needed, Intuitive hand-waving interface

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Banners Off | $1.99 | one-time |
| Sound Effects On | $1.99 | one-time |
| Enable Therimax as a Midi controller | $1.99 | one-time |


### SynthStamp

[App page](https://appshunter.io/ios/app/synthstamp/id6760490718)

**Currently charting:** #197 Top Paid · Music (US App Store)

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.

**Highlights:** 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

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is Therimax free?

Therimax is free to download, with in-app purchases available.

### Is SynthStamp free?

SynthStamp costs $4.99, with no in-app purchases.

### Which has better reviews, Therimax or SynthStamp?

SynthStamp is rated higher. Therimax averages 4.2 out of 5 from 9 ratings, while SynthStamp averages 4.5 from 13 ratings.

### Do Therimax or SynthStamp have ads?

Neither Therimax nor SynthStamp shows ads.

### Which is updated more often, Therimax or SynthStamp?

Therimax ships an update every 2 months, and SynthStamp weekly. Most recently, Therimax was updated on November 1, 2026 and SynthStamp on November 9, 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.*