Comparison

Model610 vs SKIIID

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Model610

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
Read full description

Model610 is an indispensable tool for owners of the Sequential Circuits Six-Trak synthesizers. Features: - Hands on control of all synthesis parameters in an intuitive layout - Special MONO and STACK modes for new sound and performance possibilities - Built in patch librarian for easy patch naming and management - Automatic patch backup to the cloud - Easy configuration via dedicated design. Requirements: - A Sequential Circuits Six-Trak Synthesizer - An iOS capable MIDI interface (or network MIDI solution) - Any iPad running iOS 8.0 or later

About

SKIIID

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
Currently charting
Read full description

SKIIID is a percussion synthesizer built for real-time performance. Four pads. Each one is a sound sculpted by where your finger lands. Move left or right to morph between synth parameters. Move up or down to control velocity. Simple to play, deep to explore. — PADS — Four independent drum voices. Each pad morphs between parameter extremes based on X-axis position. Velocity is Y-axis. — STEP SEQUENCER — 16-step sequencer per pad. Variable step length for polyrhythms. Reverse playback, shuffle, pin and random step modes. Sync to Ableton Link or run free. — AUTO-MUTATE — Evolves your sound automatically. Individual interval and intensity per pad, synced to tempo. — CHAOS ENGINE — RANDOM, CHAOS, and MUTATE modes generate new sounds instantly. — AUv3 PLUGIN — Run SKIIID inside AUM, ApeMatrix, Audiobus, or any AUv3 host. Multiple instances work independently — different patches, different sequencers, no shared state. — MIDI — MIDI In for pad triggering. MIDI Learn for external controller mapping. Ableton Link for tempo sync. — WORKS ON — iPhone and iPad, all modern screen sizes. Landscape mode.

Screenshots

Model6101 screens
SKIIID2 screens

Verdict

The call

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 (#179 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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 5 level
Model610 versus SKIIID: the parameters behind the verdict, then further details
ParameterModel610SKIIID
Price$19.99$3.99 — better
Rating4.7 (12 ratings) — better4.4 (31 ratings)
Positive reviews83.3% of reviews — better73.9% of reviews
Number of ratings1231 — better
Update frequencyEvery 21 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#179 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.3 — better16.0
Further details — not scored
Size1 MB20 MB
Age rating4+4+
DeveloperBill MitsakosStephan Bolch

Customer experience

Model610

All ratings12 ratings
Positive91.7%
Neutral0.0%
Negative8.3%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

SKIIID

All ratings31 ratings
Positive83.9%
Neutral6.5%
Negative9.7%
Written reviews23 reviews
Positive73.9%
Neutral13.0%
Negative13.0%

In-app purchases

None

Model610

No in-app purchases

None

SKIIID

No in-app purchases

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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