Hermai vs Gerber Viewer

Hermai is a minimalist companion app for TRMNL e-ink device owners. Named after the ancient Greek inscribed stone pillars that displayed information at crossroads, Hermai brings calm, focused device management to your pocket. See your fleet at a glance View all your TRMNL devices in one place. Each device card shows its name, status, battery level, WiFi strength, and a thumbnail of what's currently on screen — so you know everything is running without opening a browser. Inspect any device in detail Tap into a device to see its full profile: firmware version, MAC address, signal quality, refresh rate, battery voltage, and Developer Edition status. The current display section shows a large preview of exactly what your TRMNL is showing right now. Set up devices and retrieve API keys Select your device model and provision it directly from the app. Once set up, your Device API Key is stored securely and ready to copy with a single tap. Preview your screens See what each device is displaying without advancing the playlist. The current screen preview loads the live image from your device so you can inspect e-ink rendering on the go. Built for developers Quick access to Device API Keys, Friendly IDs, and MAC addresses. Everything a Developer Edition user needs to integrate, debug, and manage their TRMNL setup. Private by design Hermai has no backend server. Your API keys are stored exclusively on your device using iOS Keychain, never transmitted anywhere except directly to the TRMNL API. No analytics, no tracking, no cloud sync. Logout erases everything. Calm technology No push notifications. No badges. No urgency. Just pull-to-refresh when you want. A monochrome, e-ink-inspired interface that respects your attention — just like TRMNL itself.

The Ultimate Mobile PCB & Gerber File Inspector. Whether you are a hardware engineer, an electronics hobbyist, or a manufacturer, Gerber Viewer provides a desktop-grade experience for opening, inspecting, and verifying your printed circuit board designs directly on your iPhone or iPad. No need to wait until you are at your computer. Open both native CAD PCB layouts and manufacturing Gerber files instantly from your email, cloud storage, or local files. Key Features: Instant ZIP Archive Support: Simply open a .zip bundle of your design! The app automatically decompresses the archive and intelligently matches all layers for you. Advanced Layer Management: Toggle specific layers on and off effortlessly. Isolate copper traces, solder masks, silkscreen layers, and board outlines. Precise Measurement Tools: Check clearances, pad distances, and trace widths on the go with high-precision measurement tools. Smooth Render Engine: Built for speed. Experience fluid zooming, panning, and rendering of complex, high-density multi-layer boards without lag. Secure & Offline: Your designs are safe. All file rendering happens locally on your device, keeping your intellectual property completely secure and accessible offline. Comprehensive File Support: Our robust engine is designed to recognize and render all standard EDA exports automatically: Gerber Files (PCB Layer Artwork): General Gerber: .gbr, .ger Copper Layers: .gtl, .gbl, .cmp, .sol Silkscreen Layers: .gto, .gbo, .plc, .pls Soldermask Layers: .gts, .gbs, .stc, .sts, .st, .sb Board Outline / Keep-out: .gko, .gm1, .gm2, .gml, .profile, .outline, .cut, .out Layer Aliases: .top, .bottom, .bot, .ts, .bs Excellon Drill Files (CNC Holes): Supports: .drl, .txt, .xln, .tap, .drd, .drill, .pth, .npth Gerber ZIP Archives: Direct import of .zip files containing any of the Gerber and Drill files listed above with automatic layer matching! Premium Subscriptions & Plans: Unlock the full power of Gerber Viewer with our flexible premium plans designed to fit your production and engineering workflow. Choose the plan that best suits your needs: Weekly Subscription: $2.99 / week — Perfect for quick project checks and short-term manufacturing reviews. Monthly Subscription: $4.99 / month — Ideal for active hardware developers and engineering students. Yearly Subscription: $19.99 / year — Best value for professionals, offering full year-round access at a massive discount. Note: Payments will be charged to your iTunes Account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Account will be charged for renewal within 24 hours prior to the end of the current period. You can manage or turn off auto-renew in your Apple ID Account Settings at any time after purchase. Legal & Privacy: Terms of Service: https://sites.google.com/view/gerber-terms/home Privacy Policy: https://sites.google.com/view/gerber-policies/home