RayLab vs Lattice

RayLab is an application for design and simulation of optics. It can be used either as a learning tool or for the design of real optical systems. Basic version includes: • Ability to model 2D lenses and mirrors • Full control over placement and shape of optical components • Full control over aspheric surface shape parameters • Full geometric ray tracing • Sequential and Non Sequential analysis • Front Focal Length, Back Focal Length, Principle Surface calculations • Sample Models Upgrade to RayLab Pro enables: • 3D Modeling • Advanced Optical Elements such as Lens Arrays, Diffraction Gratings, Prisms, Fresnel Lenses, etc. • Polarization Ray Tracing * Ray Splitting / Beam Splitter modeling • Multi-Configuration Manager and animation functionality • Ability to perform optimizations of design parameters • Ray Transfer Matrix calculation • Various commercial glass catalogs • Zemax Importer • Multiple Analysis Windows: -- Fan Ray Diagram. -- Wavefront Error Plot. -- Grid Distortion Plot. -- Spot Diagram. -- Chromatic Aberration. -- Gaussian Spot Size. -- Polarization Analyzer. Upgrade is available with in-app purchases of various modules OR as a full featured subscription. • The subscription offers a 7 day free trial period. Subscription begins immediately but payment will only be charged to iTunes Account at the end of the trial period. • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. • The account will be charged for renewal within 24-hours prior to the end of the current period, at the same monthly price as the original subscription. • You may manage your subscriptions and auto-renewal may be turned off by going to your iTunes Account Settings after purchase. • No cancellation of the current subscription is allowed during active subscription period. • Any unused portion of a free trial period will be forfeited if the subscription is cancelled. Privacy Policy and Terms of Use: https://www.raymak.com/wp/privacy-policy

Forget flash cards. Forget boring worksheets. Lattice is a times-tables app that feels like a game. The screen splits in two — one number on top, one on the bottom. Drag your thumb and watch the colours, numbers, and answers change in real time. That's it. That's how learning starts. No logins. No setup. Just open and swipe. — EXPLORE — Every factor gets its own bold colour tile. Drag freely, discover patterns, and watch the equation on the central seam update instantly. Kids naturally start quizzing themselves within minutes. — QUIZ — A timed challenge with three lives and a ticking clock. Correct answers earn bonus seconds and build your streak. Wrong ones cost a life. Simple rules, intense focus — "just one more round" is the most common thing you'll hear. — TABLES — Lock one factor, scroll the other. Finally nail those 7s and 8s that always trip you up. Focused repetition without the boredom. — 8 HAND-CRAFTED THEMES — Bold primaries. Dusty pastels. Stark monochrome. Jewel-tone gemstones. Liquid metallic gradients. Every number gets its own hue. Switch themes in a tap — the whole app transforms. — TRACK YOUR PROGRESS — See every pair you've mastered. Earn Bronze, Silver, and Gold for each multiplication fact. Watch your daily streak grow. Celebrate the moment you complete the full 12×12 grid. — WHY KIDS LOVE IT — It feels like a game, not homework. The colors. The haptics. The satisfying thud when you hit the boundary. The rush of a long streak in Quiz mode. They'll practice without being asked. — WHY PARENTS LOVE IT — No accounts. No social features. No tracking. Just pure maths practice with a beautiful interface. Works offline. Designed to be safe for young learners. — LATTICE PRO — One-time purchase. Unlock all 20 times tables (and beyond, to 99), three premium metallic themes (Gold, Steel, Copper), Family Sharing for up to six, and progress sync across your devices. Yours forever — no subscription. Download Lattice. Hand it to your kid. Watch them discover that multiplication can actually be fun.