B00GA vs RackDocs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Experimental rhythm generation
- Tonal texture creation
- Vintage-flavored effects suite
- Sequencing clicks, pulses, and noise
- Drone and tonal structure creation
- Radiophonic sound design
Read full descriptionHide 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!
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.
- 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
Read full descriptionHide 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
Verdict
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
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.
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.
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.
| Parameter | B00GA | RackDocs |
|---|---|---|
| Price | $12.99 | Free — better |
| Rating | 4.7 (18 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 83.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 18 — better | 4 |
| Update frequency | Every 5 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Best chart rank | #197 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 44 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | AudioThing Ltd. | TheMM |
Customer experience
B00GA
RackDocs
In-app purchases
B00GA
No in-app purchases
RackDocs
- Monthly Subscription$0.991 Month
- Yearly Subscription$3.991 Year
- Yearly Supporter$8.991 Year
- Lifetime Access$44.99









