Vehicle Select
Browse a Make → Year → Model accordion, or add a new vehicle in a few taps with a quick wheel-picker flow. Every install lives under the vehicle it belongs to.
Built for installers, by an installer
Every vehicle. Every install. Logged.
Retained Access Program is an offline Android app for tracking automotive 12-volt installs — vehicles, products, wiring notes, and install photos, plus a set of on-device tools for tuning and diagnostics. No cloud. No accounts. No subscriptions.
Android 8.0+
Works offline
No account
Free
Ford F-1502021 · XLT · 4 sections filled
No signal neededEverything stays on the phone
31.62 VDMM target, 500 W at 2 Ω
Vehicle Records
Stop forgetting more than you can remember.
Build out a vehicle by make, year, and model, then attach everything that belongs to it — Input wire information, compatible parts, pathing taken, photos of the completed install.
Whether you're working on a lot of the same type of vehicles or when a customer calls back six months later asking what you ran under their dash, the answer is already there.
Tagged notesSaved to the vehicle
Real-Time Analyzer
Tune by what the mic actually hears.
The built-in Real-Time Analyzer reads live input from your phone or an external mic, with configurable bands, Peak Hold, a Zero Out baseline, and switchable Mic Profiles so readings stay consistent from one vehicle to the next.
This feature is currently under development.
Everything in one app
The tools you actually reach for on a job.
No bloat, no dashboards you never open. Just the digital tools you need, built to work with no signal in the shop.
Make Note
Capture photos, write quick notes, tag them, and assign to a vehicle on the spot — so what you saw under the dash today is still there next time.
Products
A Category → Manufacturer → Product library with room to attach manuals and spec sheets as PDFs, so reference material travels with the part.
Real-Time Analyzer
Live mic spectrum analysis with configurable bands, Peak Hold, a Zero Out baseline, and Mic Profiles, plus a picker for which input device to read from.
Shutdown Timer
A lap stopwatch built for timing remote-start and retained-accessory-power attempts, with results saved straight into the vehicle's Amp category.
Tone Generator
A live sine and square wave generator from 1 Hz to 40 kHz for checking drivers and crossovers, plus a Tuning Media player for reference tracks.
DMM Tuning ConverterNew
Enter your amp's RMS wattage and the final impedance to get the target AC voltage for setting gains with a multimeter, with the working shown and step-by-step instructions.
Time Align Converter
Converts speaker-distance measurements between centimeters, inches, and feet, with both results shown side by side.
Share
Pass on the knowledge. With Wi-Fi Direct sharing, or easy file export; you can pass along the experiences, knowledge, tips & tricks you have obtained over time. Also used as a simple way to back up your data in case of phone migration.
Search
Search across every vehicle, note, product, and manual on the local device, with filters by tag, product, or vehicle — so you're never digging through menus to find something you logged months ago.
Real screens from version 3.48
Straight from the app.
Vehicle Detail
For installers, by an installer.
While techs have a Fitment Guide of preference already, we all take photos of diagrams, grab scrap paper to jot down a few wire colors, and the countless times getting up and down due to forgetting that one pin position.
Retain the wasted energy you've expended writing up notes for the vehicles you've seen dozens of times and build out your digital journal! Keep information organized with quick tiles for fast app navigation, and with everything baked into the app, slow network speeds won't delay an appointment again.
Ready to remember more than you've forgotten?
Free to download. Runs entirely on your device.