Doing business as RLTW.
SEDX, LLC builds focused mobile reference, training, and utility apps — pocket-sized field manuals, professional reference, and everyday tools. Built for people who need answers fast, offline, and without distraction.
And built the way software should be: you pay once and own it — no ads, no subscriptions, no selling your data. Premium features that competitors gate behind pricey recurring plans are a single, low-cost unlock here, and your information stays on your device whenever it possibly can.
Unlock premium features with one low-cost purchase — often a fraction of what competitors charge over a year of subscriptions.
Nothing to renew, nothing to cancel, and nothing between you and the app — no banners, pop-ups, or tracking pixels.
We don't sell or share your information. No analytics middlemen profiting off how you use our apps.
Your data is stored and processed right on your phone wherever it's technically possible — private by design.
Start using any app the moment you open it. No sign-up, no email, no login wall standing between you and your tools.
Built to run without a connection — your reference and tools don't depend on our servers being up or your signal being strong.
AI on your terms — without the AI subscription
Where our apps use AI, you're never pushed into a monthly AI plan. You choose how it runs:
Use your existing Claude or OpenAI key — pay only for what you actually use, at cost, with no marked-up subscription.
Run AI models locally — free, offline, and private. Nothing leaves your phone, and no key is needed.
Grab any app and start using it right away — no account, no email, no trial countdown.
Want the premium features? A single low-cost purchase unlocks them — never a subscription.
It's yours for good — working fully offline, on your device, with nothing phoning home.
The Ranger Handbook (TC 3-21.76), interactive and offline. Field-ready for tactical reference.
Bugle Notes and cadet knowledge — study, search, and recite. Built for cadets, by the standard.
The complete U.S. Army survival field manual — searchable, offline, and built for the field.
A TCCC combat-casualty-care reference with MARCH-PAWS workflows and field tools — training use only.
Coming SoonThe Infantry branch handbook — tactics, weapons, and small-unit doctrine, offline and field-ready.
Coming SoonThe Armor branch handbook — mounted maneuver, gunnery, and combined arms reference.
Coming SoonThe Aviation branch handbook — rotary-wing operations, aircrew coordination, and air-ground integration.
Coming SoonThe Field Artillery branch handbook — fire support, gunnery, and targeting reference.
Coming SoonThe Medical Corps handbook — combat casualty care, TCCC, and field medicine reference.
Coming SoonThe Military Police branch handbook — law enforcement, detainee operations, and security reference.
Coming SoonA searchable library of U.S. Army Field Manuals and doctrinal publications, all in one place.
Coming SoonRecord video with a live stopwatch overlay and split times. Built for athletes and coaches.
The FAA Helicopter Flying Handbook with flashcards, checklists, and study tools.
The FHWA Manual on Uniform Traffic Control Devices, with a searchable library of all 945 signs.
Explore wildlife sightings on a live map — observations from naturalists worldwide, filterable by species, group, and source.
Team coordination and sideline management for coaches, captains, and crews.
Navigation Rules, Boat Crew Seamanship, signal codes, and PQS reference — fully offline.
Coming SoonRead the Bible, Torah, and Quran side by side, with cross-referenced passages across all three.
Coming SoonTrack & field meet management with live results — modern, fast, and built for the sport.
Coming SoonA calm GTD task manager — six focused views for capturing, planning, and finishing what matters.
Coming SoonNIMS / Incident Command System reference with forms, span-of-control tools, and study quizzes — training use only.
Coming SoonCalorie tracking with food-photo recognition and a comprehensive nutrition database.
Coming SoonA 3D physics puzzle — tilt the cutting plane and try to slice procedurally-generated objects into perfect 50/50 halves.
Coming Soon