Master Inventory Catalog
Browse battle-tested, verified turnkey software systems ready for immediate deployment and commercial resale.
Showing 48 software systems in warehouse core under Android APK
SupremeCourtCases Pro: Landmark Supreme Court Legal Precedents
Summaries of Marbury v. Madison, Brown v. Board, Miranda v. Arizona, and more.
ConstitutionRights Pro: US Constitution & Bill of Rights Text
Search the complete unedited text of the Constitution and all 27 Amendments.
PresidentsBiographies Pro: All 46 US Presidents & Key Events
Complete bios, election maps, landmark legislation, and Cabinet secretaries.
WorldTimeHistory Pro: Chronological World History Timeline
Scroll through human history from ancient Mesopotamia to the 21st century.
BrailleAlphabet Pro: 6-Dot Unified English Braille Reference
Visual reference for Grade 1 and Grade 2 Unified English Braille contractions.
SignLanguageBasics Pro: ASL Finger-Spelling Alphabet Cards
Learn American Sign Language A-Z alphabet and common emergency signs offline.
PhoneticAlphabet Pro: NATO Aviation Phonetic Alphabet Drills
Master Alpha, Bravo, Charlie, and Delta military radio voice communications.
SpeedReader Pro: RSVP Rapid Serial Visual Presentation Reader
Read articles at 500+ words per minute by eliminating ocular saccade movements.
LatinRootWords Pro: Greek & Latin Etymology Dictionary
Unlock 10,000+ English vocabulary words by studying their original Greek/Latin roots.
BinaryHexConverter Pro: Binary, Octal, Decimal & Hex Converter
Convert numbers between base 2, 8, 10, and 16 with bitwise bit shift operations.
BooleanLogic Pro: Digital Logic Truth Tables & Karnaugh Maps
Simplify digital circuit logic with interactive AND, OR, XOR, NOT, and NAND tables.
StatisticsSummary Pro: Descriptive Statistics & Variance Calc
Enter data sets to instantly calculate mean, median, mode, IQR, and standard deviation.
ProbabilityDist Pro: Normal & Poisson Distribution Calculator
Compute z-scores, p-values, and standard bell curve area under the curve.
MatrixLinearAlgebra Pro: Matrix Determinants & Dot Product
Calculate 2x2, 3x3, and 4x4 matrix inverses, cross products, and eigenvalues.
CalculusDerivatives Pro: Calculus Derivatives & Integrals Sheet
Product rule, chain rule, integration by parts, and trigonometric substitution tables.
OrganicChemistry Pro: Organic Functional Groups Reference
Master alcohols, esters, ketones, SN1/SN2 reactions, and aromatic substitutions.
ElementValence Pro: Chemical Bonding & Valence Rules
Determine ionic and covalent bond geometries using Lewis dot rules and VSEPR theory.
GeoQuizCapital Pro: World Borders & Geography Mastery
Test your knowledge of landlocked countries, major rivers, and mountain ranges.
SolarSystemExplorer Pro: Planetary Orbits & Gravity Physics
Interactive scale model of the sun, 8 planets, asteroid belt, and major moons.
StarConstellation Pro: Offline Constellation & Star Map
Identify 88 astronomical constellations, bright navigational stars, and nebulae.
AnatomyAtlas Pro: Human Skeletal & Muscular Reference
Searchable medical reference detailing all 206 bones and major muscle insertions.
FlagQuizPro: All 195 World National Flags & Capitals
Interactive geographical quiz testing flags, capital cities, and country outlines.
MorseCodeTrainer Pro: Audio & Visual Morse Code Trainer
Learn CW telegraphy using the Koch method with customizable WPM transmission speeds.
UnitConverterUniversal Pro: High-Precision Universal Converter
Convert over 1,000 units across length, mass, pressure, energy, and radiation.
MathSolver Pro: Step-by-Step Offline Algebra Solver
Solve quadratic equations, factor polynomials, and simplify rational expressions.
PeriodicTable Pro: Interactive Chemistry Periodic Table
Atomic numbers, electron configurations, isotopes, melting points, and discovery history.
FormulaSheet Pro: Physics, Chemistry & Math Formula Sheet
Over 500 essential equations with variable definitions and metric/imperial units.
FlashMaster Pro: Spaced-Repetition Leitner Flashcards
Master languages, medical terms, and law using proven spaced-repetition memory.
PettyCashBox Pro: Petty Cash Drawer Voucher Reconciliation
Log cash drawer drops, cash payouts, and end-of-day register reconciliation.
PocketLedger Pro: Double-Entry Accounting T-Accounts
Clean debit and credit accounting ledger for small business bookkeeping on the go.
CheckbookReconcile Pro: Classic Bank Checkbook Register
Keep a running balance of uncleared checks, debit transactions, and deposits.
BankHolidayCalendar Pro: Federal Reserve Banking Holiday Guide
Know the exact days when wire transfers, ACH deposits, and stock markets are closed.
ColdStorageAudit Pro: BIP-39 Paper Backup Verification Log
Safely test your knowledge of seed word positions without typing full phrases.
GasFeeGwei Pro: EVM Gas Fee Gwei to Dollar Cost Calculator
Calculate exact transaction fees for token transfers and smart contract calls.
TokenUnlockWatch Pro: Crypto Token Vesting & Cliff Schedule
Track upcoming team and investor token unlocks that could cause sell pressure.
StakingYield Pro: Proof-of-Stake Compounding Staking APY
Project annual token rewards with daily and weekly compounding reinvestment.
LiquidityPoolCalc Pro: DeFi Impermanent Loss Calculator
Calculate impermanent loss when supplying tokens to automated market makers (AMMs).
MiningProfitability Pro: Crypto Mining Wattage & ROI Calc
Calculate net daily mining yield after subtracting kilowatt-hour electrical costs.
CryptoDcaCalc Pro: Bitcoin Dollar-Cost Averaging Simulator
Simulate historical returns of buying $25 of Bitcoin every week over 5 years.
BarterTradeLog Pro: Goods & Services Barter Trading Ledger
Track non-cash trades of labor, tools, farm produce, and mechanical repairs.
PiggyBankGoal Pro: Visual Savings Target Jar & Milestones
Watch a graphical savings jar fill up coin-by-coin as you get closer to your goal.
DailySpendingCap Pro: Safe Daily Spending Allowance Counter
Know exactly how many dollars you can spend today without exceeding monthly goals.
ContractorDraw Pro: Construction Loan Draw Schedule Manager
Track bank inspection draw milestones, percentage completions, and retainage.
FlipProfitCalc Pro: House Flip Renovation Margin Calculator
Calculate purchase cost, rehab budget, holding costs, and estimated gross profit.
PropertyRentalCashflow Pro: Real Estate Cap Rate & NOI Calc
Analyze gross rents, vacancy rates, property management, and cash-on-cash returns.
RentVsBuy Pro: Rent vs Buy Real Estate Wealth Analyzer
Compare buying a house vs renting and investing the difference in the stock market.
CarTrueCost Pro: Total Cost of Vehicle Ownership (TCO)
Compare annual depreciation, fuel, insurance, and maintenance across two vehicles.
HourlyWageEquiv Pro: True Hourly Wage After Commute Costs
Subtract commute fuel, car maintenance, and unpaid overtime to find your real rate.