Comparison

B00GA vs RackDocs

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

Head to head
About

B00GA

Create experimental rhythms and tonal textures with this unique sound design tool. Inspired by vintage lab equipment, it generates clicks, pulses, and noise for grooves, drones, and radiophonic effects. Perfect for musicians and sound designers seeking unconventional sonic exploration.

Highlights
  • Experimental rhythm generation
  • Tonal texture creation
  • Vintage-flavored effects suite
  • Sequencing clicks, pulses, and noise
  • Drone and tonal structure creation
  • Radiophonic sound design
Features
Currently charting
Read full description

B00GA is a studio and live instrument designed by Hainbach to create experimental rhythms and tonal textures. Inspired by a rare piece of lab equipment, the Hewlett-Packard Word Generator 8006A, it offers an excitingly different way to sequence clicks, pulses, and noise. Use it to create tight grooves, off-kilter beats, and forever shifting micro-sound patterns. Speed them up into rich drones and tonal structures. It comes with a suite of five vintage-flavored effects that allow for unique radiophonic effects. From brain-dance to the dance floor to advanced sound design, let’s B00GA!

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

B00GA1 screens
RackDocs4 screens

Verdict

The call

The clearest difference is price: RackDocs at Free against B00GA's $12.99. RackDocs also leads on update cadence (every 6 days vs every 5 months) and rating (5.0 vs 4.7). B00GA's advantage is in-app purchases (none vs 4) and chart position (#197 vs unranked). On 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

RackDocs is free to download; B00GA costs $12.99 up front. RackDocs sells 4 in-app purchases, starting at $0.99 per month. B00GA asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

RackDocs holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 18 and 4 respectively. Written reviews point the same way: 83% of B00GA's written reviews are positive against 100% of RackDocs's.

UpkeepUpdate frequency

B00GA ships an update every 5 months, RackDocs every 6 days. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.

Scorecard9 real differences · 2 level
B00GA versus RackDocs: the parameters behind the verdict, then further details
ParameterB00GARackDocs
Price$12.99Free — better
Rating4.7 (18 ratings)5.0 (4 ratings) — better
Positive reviews83.3% of reviews100.0% of reviews — better
Number of ratings18 — better4
Update frequencyEvery 5 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
Best chart rank#197 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size44 MB31 MB
Age rating4+4+
DeveloperAudioThing Ltd.TheMM

Customer experience

B00GA

All ratings18 ratings
Positive94.4%
Neutral0.0%
Negative5.6%
Written reviews12 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

RackDocs

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

In-app purchases

None

B00GA

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 B00GA free?
B00GA costs $12.99, with no in-app purchases.
Is RackDocs free?
RackDocs is free to download, with in-app purchases available.
Which has better reviews, B00GA or RackDocs?
RackDocs is rated higher. B00GA averages 4.7 out of 5 from 18 ratings, while RackDocs averages 5.0 from 4 ratings.
Do B00GA or RackDocs have ads?
Neither B00GA nor RackDocs shows ads.
Which is updated more often, B00GA or RackDocs?
B00GA ships an update every 5 months, and RackDocs every 6 days. Most recently, B00GA was updated on October 16, 2026 and RackDocs on October 12, 2026.

Other comparisons