# Model610 vs SKIIID

The clearest difference is price: SKIIID at $3.99 against Model610's $19.99. SKIIID also leads on update cadence (every 4 days vs every 21 months) and chart position (#199 vs unranked). Model610's advantage is rating (4.7 vs 4.4) and review sentiment (83% vs 74%). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Model610 costs $19.99 and SKIIID $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Model610 holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 12 and 31 respectively. Written reviews point the same way: 83% of Model610's written reviews are positive against 74% of SKIIID's.

Model610 ships an update every 21 months, SKIIID every 4 days. The most recent releases landed on September 17, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Model610 | SKIIID |
| --- | --- | --- |
| Price | $19.99 | **$3.99** |
| Rating | **[4.7 (12 ratings)](https://appshunter.io/ios/app/model610-synth-controller/id979456894/reviews)** | [4.4 (31 ratings)](https://appshunter.io/ios/app/skiiid/id1516634571/reviews) |
| Number of ratings | 12 | **31** |
| Positive reviews | **83.3% of reviews** | 73.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 4 days** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#199** |
| Size | 1 MB | 20 MB |
| Requires iOS | **9.3** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bill Mitsakos](https://appshunter.io/developer/979456893) | [Stephan Bolch](https://appshunter.io/developer/1516634570) |

## What reviewers say

### Model610

[App page](https://appshunter.io/ios/app/model610-synth-controller/id979456894)

Control your Sequential Circuits Six-Trak synthesizer with an intuitive interface. Explore new sound possibilities with dedicated modes and manage your patches with cloud backup. Requires a Six-Trak synthesizer and an iOS-compatible MIDI interface.

**Highlights:** Hands-on synthesis parameter control, MONO and STACK modes, Built-in patch librarian, Automatic cloud patch backup, Easy configuration

**Features:** macOS Compatibility

**In-app purchases:** none


### SKIIID

[App page](https://appshunter.io/ios/app/skiiid/id1516634571)

**Currently charting:** #199 Top Paid · Music (US App Store)

This app is a percussion synthesizer designed for live performance. It features four morphing pads where finger position controls sound parameters and velocity. Explore deep sound design with a step sequencer, auto-mutation, and chaos engine for instant sound generation.

**Highlights:** Four morphing percussion pads, Real-time parameter control via touch, 16-step sequencer per pad, Auto-mutate sound evolution, Chaos engine for instant sound generation, AUv3 plugin support, MIDI input and Ableton Link sync

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Model610 free?

Model610 costs $19.99, with no in-app purchases.

### Is SKIIID free?

SKIIID costs $3.99, with no in-app purchases.

### Which has better reviews, Model610 or SKIIID?

Model610 is rated higher. Model610 averages 4.7 out of 5 from 12 ratings, while SKIIID averages 4.4 from 31 ratings.

### Do Model610 or SKIIID have ads?

Neither Model610 nor SKIIID shows ads.

### Which is updated more often, Model610 or SKIIID?

Model610 ships an update every 21 months, and SKIIID every 4 days. Most recently, Model610 was updated on September 17, 2026 and SKIIID on October 4, 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.*