Comparison

TouchOSC vs RDTap

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

Head to head
About

TouchOSC

This app provides a powerful and flexible modular control surface for MIDI and OSC messages. It features a GPU-powered editor for creating complex layouts, cross-network synchronized editing, and a scripting engine for deep customization. It's designed for musicians and audio professionals seeking advanced control over their digital audio workstations and other compatible software.

Highlights
  • Modular control surface
  • Powerful integrated editor
  • MIDI and OSC message support
  • Cross-network synchronized editing
  • Scripting engine for customization
  • Wired & wireless MIDI connections
Features
Currently charting
Read full description

Brand-new app. Brand-new powerful editor. We've listened for the past 10 years and we've re-written the application from the ground up - with speed, features and usability in mind. A GPU-powered, fast and advanced integrated editor is part of TouchOSC on all platforms - create the most complex of control layouts with ease and precision. MIDI, OSC and more... TouchOSC supports sending and receiving any number of MIDI and OSC messages on many connections simultaneously. On top of OSC over UDP & TCP, we support every type of wired & wireless MIDI connection your device can offer, including MIDI over USB. Cross-Network. Synchronized editing. Multiple instances of TouchOSC can be connected on the network for synchronized editing. Use the precision of your desktop's mouse and keyboard for fine-grained, detailed editing - test-drive and preview in real-time on all connected touch-screen devices at the same time. Scripting and local messages. A lightweight and fast scripting engine allows deep access to all aspects of your controller and enables limitless customization and interactivity. For less complex tasks we've added local messages - simply wire up controls to transmit or display values; no need to break out the big (code) guns. Easy. This is only the beginning... We've supported and updated TouchOSC Mk1 for more than 10 years and we're planning to do the same for this new version. We've already got a whole bunch of features cooking that were just not quite ready yet. There is so much more to come... Welcome to the next generation!

About

RDTap

Control and configure SUB 90XX series subwoofers with access to internal parameters. Offers professionally tuned presets for seamless integration with top speakers and supports rapid setup for ground stacking or sub cluster configurations.

Highlights
  • Access internal subwoofer parameters
  • Advanced Crossover Engine (ACE) presets
  • Professionally tuned level and phase matching
  • Ground stacking and sub cluster configuration
  • Rapid setup for speaker designs
Features
Read full description

RDTap is dedicated to the SUB 90XX family of touring subwoofers (https://www.rcf.it/en/sub-9000-series), providing full access to their internal parameters. Several presets are available for their internal Advanced Crossover Engine (ACE), offering a professionally tuned match, both in level and phase, between the subwoofer itself and a selection of top speakers. In addition, a Ground Stacking or Sub Cluster combination of up to 3 subwoofers and one or more top speakers (defined as Design) can be rapidly defined and configured, with simple programming steps.

Screenshots

TouchOSC4 screens
RDTap3 screens

Verdict

The call

The clearest difference is price: RDTap at Free against TouchOSC's $19.99. RDTap also leads on update cadence (fortnightly vs every 6 weeks). TouchOSC's advantage is review sentiment (72% vs 50%) and chart position (#41 vs unranked). On ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

RDTap is free to download; TouchOSC costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

TouchOSC ships an update every 6 weeks, RDTap fortnightly. The most recent releases landed on October 12, 2026 and October 4, 2026 respectively.

Scorecard6 real differences · 5 level
TouchOSC versus RDTap: the parameters behind the verdict, then further details
ParameterTouchOSCRDTap
Price$19.99Free — better
Rating4.6 (232 ratings) — better—
Positive reviews71.7% of reviews — better50.0% of reviews
Number of ratings232 — better—
Update frequencyEvery 6 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#41 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size39 MB36 MB
Age rating4+4+
DeveloperHexler LLCRCF spa

Customer experience

TouchOSC

All ratings232 ratings
Positive90.1%
Neutral2.2%
Negative7.8%
Written reviews99 reviews
Positive71.7%
Neutral9.1%
Negative19.2%

RDTap

Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

TouchOSC

Reported bugs

12 issues
  • App crashes and won't reopen
  • Connection drops between iPad and computer
  • OSC not transmitting despite showing connected
  • Screen goes blank when typing text
  • Document tree scrolling jumps erratically
Show 7 more
  • Pen input unresponsive on iPad
  • Control surfaces appearing upside down
  • Inconsistent mirror editing from desktop
  • MIDI over USB connection issues on Windows
  • Automatic 'untitled' file creation on connection
  • Studio One integration failures
  • Logic Pro mapping inconsistencies

Requested features

17 requests
  • Bluetooth MIDI support on iOS devices
  • VST/AU plugin version for DAWs
  • Better documentation and video tutorials
  • Cross-control scripting capabilities
  • Image and background customization
Show 12 more
  • Global variables for state management
  • Improved document tree navigation
  • Batch editing for multiple controls
  • Real-time cloud synchronization
  • Radial radio button controls
  • Audio analyzer for frequency/BPM detection
  • Background mode operation
  • Joycon controller support
  • NRPN MIDI support
  • Better grid snapping options
  • Position lock for interface elements
  • Standalone app compilation/export

RDTap

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

TouchOSC

No in-app purchases

None

RDTap

No in-app purchases

Questions

Is TouchOSC free?
TouchOSC costs $19.99, with no in-app purchases.
Is RDTap free?
RDTap is free to download, with no in-app purchases.
Do TouchOSC or RDTap have ads?
Neither TouchOSC nor RDTap shows ads.
Which is updated more often, TouchOSC or RDTap?
TouchOSC ships an update every 6 weeks, and RDTap fortnightly. Most recently, TouchOSC was updated on October 12, 2026 and RDTap on October 4, 2026.

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