Comparison

MOTU AVB Discovery vs RackDocs

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

Head to head
About

MOTU AVB Discovery

This application locates MOTU AVB devices on your WiFi network. It provides one-touch access to control all device settings directly from your mobile device.

Highlights
  • Locates MOTU AVB devices on WiFi
  • One-touch access to device settings
  • Works in portrait and landscape
  • Large, one-handed controls
Features
Read full description

The MOTU AVB Discovery from MOTU, Inc. finds all MOTU AVB Devices on your WiFi network, whether they are connected via ethernet or a computer with Thunderbolt or USB. Tap a MOTU AVB device in the list to open the MOTU AVB Control Panel, giving you access to all the device's settings. MOTU AVB Discovery works in both portrait and landscape orientations. Designed with comfortably large controls, MOTU AVB Discovery can easily be used with only one hand by pressing the desired menu choice and buttons with your thumb. Feature highlights: - Quickly view all MOTU AVB devices on your WiFi network - One-touch access to your MOTU AVB Device's settings

About

RackDocs

Document your modular synthesizer modules with photos and detailed notes. Capture every switch position, LED behavior, and hidden feature. Sync across devices and access your documentation offline.

Highlights
  • Photo-based module documentation
  • AI annotation extraction from manuals
  • Multi-context documentation
  • LED behavior tracking
  • Switch position guides
  • Community library of documented modules
  • Offline access and iCloud sync
Features
Read full description

Remember When You Knew What Everything Did? You know the feeling. You're three hours deep into a patch on your Eurorack (or Buchla, or Serge, or 5U rig), riding that creative flow, when you can't remember if that switch toggles the quantizer or unlocks some hidden LFO mode you discovered last month at 2 AM. Or worse, you finally saved up for that complex module everyone raves about. The manual is 87 pages of dense tables. There's a switch upper left. And three knobs. A mysterious LED that blinks in morse code. You patch something, it sounds incredible... then forget how you got there. RackDocs was born from exactly these moments. Built by someone staring at their rack, trying to remember what switch position enables through-zero FM. YOUR RACK, ACTUALLY DOCUMENTED Forget dusty manuals and half-remembered forum posts. Take a photo of your module, mark it up with everything you discover, build your own personal wiki. Every hidden feature. Every switch position. Documentation on your terms. Works with Eurorack, 1U, 5U/MU, Serge, Buchla, and more. BUILT FOR EXPLORATION • NEW: AI annotation extraction—point at a manual or PDF, get all controls identified automatically • Photo-based—faceplates are already the perfect reference • Auto-snap to controls (tap near a jack or knob, circles detected automatically) • Smart image editing (crop that cluttered desk out) • Import specs from ModularGrid (why type HP and mA manually?) • Multi-format support (3U, 1U, 5U, Serge, Buchla—we don't discriminate) • Annotation tools that make sense DOCUMENT EVERYTHING YOU DISCOVER • 12 annotation types for every control (not just "knob goes brr") • Multi-context documentation (Normal Mode vs. Secret Alt Firmware Mode) • LED behavior tracking (solid/blinking/pulsing/existential crisis) • Switch position guides (up = quantized, down = chaos, center = ???) • Multi-step operation notes (tap this while holding that) • Copy/paste annotations CURATED NEWS FEED • Eurorack news, videos, and new module releases - all in one place COMMUNITY LIBRARY • Many modules documented by fellow patch nerds • Share your discoveries • Vote on documentation (yay or meh) • Verified accounts prevent random chaos SYNC EVERYWHERE, WORK OFFLINE • iCloud sync across iPhone, iPad, and Mac (patching happens everywhere) • Full offline mode (studio has no WiFi anyway) • Your data stays yours (unless you decide different) ORGANIZE THE BEAUTIFUL CHAOS • Search by name, manufacturer, or custom tags • Sort however your brain works • Export cheat sheets as PDFs or images (print them, share them, flex on Instagram) PRICING Start free with 5 modules, 5 community downloads and 5 exports. Try it, see if it fits your workflow. If you like it: • Monthly - No commitment. Cancel anytime. • Yearly - Best value. Less than a patch cable. • Yearly Supporter - Locks your price forever. New features, same rate. For those who hate price increases. Supporter badge! • Lifetime - Pay once, own forever. No subscriptions, no renewals. Support indie development, not investors. Why subscriptions? Servers cost money. Development costs time. This keeps the lights on and lets me build what you need. WHO MADE THIS? A modular enthusiast tired of scribbling notes at 3 AM. Someone who's bought complex modules, discovered secrets over weeks, then forgot everything after a creative break. PERFECT FOR: • Beginners drowning in manuals and tutorials • Live performers needing instant reference (no PDFs on stage) • Collectors managing systems too big to memorize • Gear heads who RTFM and want to share knowledge • Anyone who's thought "this module did something cool last week" Download RackDocs. Document your discoveries. Patch with confidence. Your rack is unique. Your documentation should be too. Screenshots show the app documenting third-party hardware. Module designs © their respective manufacturers. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

MOTU AVB Discovery3 screens
RackDocs4 screens

Verdict

The call

The clearest difference is review sentiment: RackDocs at 100% against MOTU AVB Discovery's 5%. RackDocs also leads on rating (5.0 vs 2.3) and update cadence (every 6 days vs every 20 months). MOTU AVB Discovery's advantage is in-app purchases (none vs 4) and ratings volume (26 vs 4). On price, ads 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

Both are free to download. RackDocs sells 4 in-app purchases, starting at $0.99 per month. MOTU AVB Discovery asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

RackDocs holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: MOTU AVB Discovery has 26 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 5% of MOTU AVB Discovery's written reviews are positive against 100% of RackDocs's.

UpkeepUpdate frequency

MOTU AVB Discovery ships an update every 20 months, RackDocs every 6 days. Both last shipped on October 24, 2026.

Scorecard7 real differences · 3 level
MOTU AVB Discovery versus RackDocs: the parameters behind the verdict, then further details
ParameterMOTU AVB DiscoveryRackDocs
PriceFreeFree
Rating2.3 (26 ratings)5.0 (4 ratings) — better
Positive reviews5.3% of reviews100.0% of reviews — better
Number of ratings26 — better4
Update frequencyEvery 20 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS7.1 — better18.0
Further details — not scored
Size7 MB31 MB
Age rating4+4+
DeveloperMOTU Inc.TheMM

Customer experience

MOTU AVB Discovery

All ratings25 ratings
Positive28.0%
Neutral0.0%
Negative72.0%
Written reviews19 reviews
Positive5.3%
Neutral10.5%
Negative84.2%

RackDocs

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

MOTU AVB Discovery

No in-app purchases

4 purchases

RackDocs

Subscriptions3
  • Monthly Subscription$0.991 Month
  • Yearly Subscription$3.991 Year
  • Yearly Supporter$8.991 Year
One-time1
  • Lifetime Access$44.99

Questions

Is MOTU AVB Discovery free?
MOTU AVB Discovery is free to download, with no in-app purchases.
Is RackDocs free?
RackDocs is free to download, with in-app purchases available.
Which has better reviews, MOTU AVB Discovery or RackDocs?
RackDocs is rated higher. MOTU AVB Discovery averages 2.3 out of 5 from 26 ratings, while RackDocs averages 5.0 from 4 ratings.
Do MOTU AVB Discovery or RackDocs have ads?
Neither MOTU AVB Discovery nor RackDocs shows ads.
Which is updated more often, MOTU AVB Discovery or RackDocs?
MOTU AVB Discovery ships an update every 20 months, and RackDocs every 6 days. Most recently, MOTU AVB Discovery was updated on October 24, 2026 and RackDocs on October 24, 2026.

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