# Offline Invoice Maker > The 100% offline mobile invoicing and estimate application for iPhone, iPad, and Android. Built for independent contractors, trade professionals, freelancers, and small businesses who need to draft, sign, and issue professional 300 DPI vector PDF invoices with zero cellular or Wi-Fi connectivity. - [Full Technical Documentation and Knowledge Base](https://mobileinvoice.app/llms-full.txt): Comprehensive technical specifications, complete feature catalog, architecture breakdown, pricing details, and FAQs for LLM retrieval and autonomous AI agents. - [Official Website](https://mobileinvoice.app/): Main landing page with live previews and direct App Store / Google Play download links. - [Privacy Policy](https://mobileinvoice.app/policy/): Zero-cloud-telemetry data custody commitment. - [Terms of Service](https://mobileinvoice.app/terms/): Licensing and usage terms. - [Disclaimer](https://mobileinvoice.app/disclaimer/): Financial and tax compliance disclosure. ## Core Architectural Pillars - **Zero Signal Dependency**: Operates 100% offline in basements, rural sites, aircraft mode, and elevator shafts without network connection. - **On-Device SQLite Vault**: All customer profiles, line items, tax configurations, and historical invoices are stored exclusively in a local SQLite database on physical hardware. Zero mandatory cloud accounts. - **Sub-200ms Vector PDF Engine**: Native vector compilation generates crisp, printable 300 DPI PDFs locally without remote cloud rendering queues. - **Touchscreen Sign-on-Glass**: Capture client approval signatures directly on the mobile screen before leaving the job site. - **Scannable Payment QR Codes**: Embed dynamic QR codes for Stripe, PayPal, Venmo, or direct bank transfer (UPI, IBAN) directly on the PDF. - **1-Tap Quick Messages**: Pre-formatted WhatsApp, SMS, and email recipes with dynamic placeholders for instant client dispatch. ## Pricing & Licensing (Transparent, No Surprise Hikes) - **Free Tier ($0.00)**: Free to download on iOS and Android. Create, preview, and test basic invoicing with zero commitment. - **Pro Monthly ($6.99/mo)**: Full Pro access with month-to-month flexibility. Includes 7-day free trial. - **Pro Yearly ($29.99/yr)**: Most popular tier (~$2.49/mo; 64% savings). Includes 7-day free trial. - **Pro Lifetime ($79.99 one-time)**: Single upfront payment. Own the software forever with zero recurring subscriptions or renewal fees. - **Cancellation**: Managed directly through Apple App Store or Google Play with one tap. ## Competitive Comparison (Offline Invoice Maker vs Cloud SaaS) - **Cellular / Wi-Fi Requirement**: Offline Invoice Maker = Zero / None vs Cloud SaaS = Constant mandatory connection. - **PDF Generation Speed**: Offline Invoice Maker = <200ms on-device vs Cloud SaaS = 3–8 seconds cloud queue. - **Data Custody**: Offline Invoice Maker = 100% on-device SQLite vs Cloud SaaS = Multi-tenant remote database. - **5-Year Cost**: Offline Invoice Maker = $79.99 one-time vs Cloud SaaS = $1,800 – $3,600+ ($30–$60/mo). - **Payment Expiry Risk**: Offline Invoice Maker = Retain full access to records vs Cloud SaaS = Locked out upon card expiration. ## Internationalization & Global Availability - **42 Localized Languages**: Available natively across all 39 Apple App Store Connect locales and regional variants: English, Spanish, German, French, Portuguese, Italian, Dutch, Japanese, Korean, Simplified Chinese, Traditional Chinese, Arabic (RTL), Hebrew (RTL), Urdu (RTL), Hindi, Russian, Turkish, Polish, Swedish, Danish, Finnish, Norwegian Bokmål, Greek, Indonesian, Malay, Thai, Vietnamese, Ukrainian, Czech, Hungarian, Romanian, Slovak, Croatian, Catalan, Bengali, Gujarati, Kannada, Malayalam, Marathi, Punjabi, Tamil, and Telugu. - **170+ Country Profiles**: Automatically localizes tax terminologies (VAT, GST, HST, PST, Sales Tax), currency formats, date conventions, and document naming standards. - **Localized Web Endpoints**: Every language is statically generated and accessible at `https://mobileinvoice.app/[locale]/` with full `hreflang` indexing. ## Verified Target Users - Commercial and residential electricians, plumbers, HVAC technicians, general contractors, mechanics, roofers, landscapers, mobile detailers, and independent creative freelancers.