Comparison

Syntien 2 vs Accel

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

Head to head
About

Syntien 2

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Syntien 2 recognizes a variety of input sources, including touch, movement, and sound, and converts them into data for your creative work. Syntien 2 can connect to other devices and software via MIDI, OSC, and BLE. It comes with all the standard controls you'd expect -- buttons, labels, sliders, knobs, etc. -- plus a unique set of tools that go far beyond the basics. • Use an adjustable, resizable Keyboard control to send MIDI note and velocity data, in addition to pitch bend, expression, and more. • The Touch Pad control takes full advantage of your device's multi-touch capabilities. Track multiple touches independently. Use a stylus like an Apple Pencil to send highly-expressive data with pressure and tilt sensitivity. • The IMU control uses data from your device's accelerometer, gyroscope, and magnetometer to transmit your device's acceleration, rotation, or nearby magnetic field strength. • Use the Level Meter to track audio input levels, and use the Pitch Detector control to detect pitch. • Transform and scale outputs directly in Syntien 2 without any complex scripting! • Connect controls to each other using Macros. Use buttons to toggle a Keyboard's sustain pedal, set up a Slider to modulate the frequency of an LFO, and more! • Create your own interfaces and modify the behavior of controls in-app, on any iPhone or iPad, without the need for a separate desktop editor! Place and resize controls exactly how you want them using intuitive drag-and-drop gestures. • Modify controls mid-performance by sending data from your computer to Syntien. Incoming OSC messages are displayed on the screen and color-coded, so you'll know exactly what messages Syntien is receiving and whether or not they're being interpreted. Works with Ableton, Max/MSP, SuperCollider, TouchDesigner, and any MIDI- or OSC-compatible software.

About

Accel

Features
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Build speed, steadier timing, and confident playing with a metronome that adapts to your practice plan. Accel gradually raises the pace for you, then tests your inner clock by dropping out for whole bars. • Create a tempo plan with a starting speed, step size, target, and hold time • Practise through rising and falling speed changes without touching the controls • Use fixed, random, or ladder gaps to strengthen your internal pulse • Follow clear progress for upcoming tempo changes, bars, and silent sections • Keep playing with precise audio, background playback, and screen-off support Set your starting BPM, choose how much to increase at each step, and decide how long each tempo should last. Accel changes speed on the bar line, keeping every transition musical and predictable. When you reach your target, run the plan back down to the starting speed. The gap trainer silences complete bars while the beat continues underneath. Choose a repeating pattern, random gaps, or a ladder that gradually increases the challenge. A preview of upcoming bars helps you prepare without breaking concentration. Use the metronome for scales, exercises, difficult passages, groove work, auditions, rehearsals, or daily practice. Choose from common time signatures, subdivisions, accent patterns, and click sounds to match your instrument and style. Accel is made for guitarists, drummers, pianists, vocalists, string players, and any musician who wants a structured way to play faster while staying in time. Your settings are remembered between sessions, and the clean interface keeps practice focused. Download Accel and turn every practice session into a clear, progressive timing workout.

Screenshots

Syntien 24 screens
Accel4 screens

Verdict

The call

The clearest difference is in-app purchases: Syntien 2 at none against Accel's 1. On price, ads, device support and iOS requirement 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

Both are free to download. Accel sells 1 one-off in-app purchase. Syntien 2 asks for nothing beyond the download.

Scorecard1 real difference · 5 level
Syntien 2 versus Accel: the parameters behind the verdict, then further details
ParameterSyntien 2Accel
PriceFreeFree
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size35 MB60 MB
Age rating4+4+
DeveloperModuliiVerena Zaiser

In-app purchases

None

Syntien 2

No in-app purchases

1 purchases

Accel

One-time1
  • Accel Pro$2.99

Questions

Is Syntien 2 free?
Syntien 2 is free to download, with no in-app purchases.
Is Accel free?
Accel is free to download, with in-app purchases available.
Do Syntien 2 or Accel have ads?
Neither Syntien 2 nor Accel shows ads.

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