O vs Lumtime

GMORS O-Ring Master is the completed tool for standard rubber seal sizes. When you use this APP, you don't need to have internet and catalog. Except O-Ring sizes, it also includes the search functions of X-Ring and Back-Up Ring. Otherwise, you can also use O-Ring Housing to choose suitable O-Ring in your application. Main functions are as follows: Dimension Search：O-Ring, X-Ring and Back-Up Ring. - MM and Inch are both available. - Full standard O-Ring series: AS568, BS 4518, GB/T 3452.1, JIS B2401 P, JIS B2401 G, JIS B2401 S, JIS B2401 V, SMS 1586 and METRIC. - Collocated Back-Up for AS-568 O-Ring. - Substitutable O-Ring sizes within tolerance are available. O-Ring Housing： Piston Sealing、Rod Sealing and Face Sealing. - MM and Inch are both available. - Support calculation for both Static and Dynamic sealing applications (Face sealing is with static calculation only). - Up to 7 O-Ring standards ( AS568, METRIC, JIS B2401 P/G/S/V, JASO F404, GB/T 3452.1, BS 4518 and SMS 1586) for most of size requirement of different groove design.

Lumtime — a completely free focus & habits & efficiency toolkit. 【AI Voice To-Dos, Habits & Countdowns — Go Hands-Free】 Driving, cooking, or too groggy in the morning? Just say: *"Remind me to study vocab at 8 AM tomorrow"* or *"Submit the report next Wednesday."* The AI instantly understands your intent and automatically creates timed reminders and to-do lists. Supports natural language conversations—jot down fleeting ideas anytime, anywhere. 【Pomodoro Focus — 25-Min Deep Immersion, Beat Distraction】 Based on the scientific Pomodoro Technique: 25 minutes of focus + 5 minutes of rest, with automatic daily focus time tracking. Top grad school preppers average 6+ hours of focus daily—your focus data doesn't lie. Supports custom focus durations, whether it's a 25-minute standard Pomodoro or a 50-minute deep work session. Auto-generates focus reports so you can clearly see your daily progress. 【Smart To-Do List — Never Miss a Task, Never Fail a Plan】 AI smart reminders automatically recognize task time and priority. Exam prep schedules, meeting arrangements, daily chores—leave it all to Lumtime. Supports sub-task splitting, tag categorization, and due date reminders. You can even record your own or a family member's voice as the reminder tone! Powerful recurring reminders (daily/weekly/monthly/yearly/custom). Supports Live Activity + Widgets + iCloud sync. The daily to-do overview tells you exactly what to do the moment you open the app, saying goodbye to "where do I start" anxiety. 【Habit Tracker — 21 Days to Build a Good Habit】 Vocab, practice tests, working out, waking up early... Check in daily and visualize your persistence. Continuous streak days, completion rate stats, and habit heatmaps make self-discipline visible. Supports custom habit frequencies (daily/weekly/custom) to flexibly fit your pace. When you see a 30-day streak, you won't want to break it. 【Countdown — Every Day Brings You Closer to Your Goal】 Grad school countdown, exam countdown, project deadlines... Desktop-level countdown widgets constantly remind you how far away your goals are. Run multiple countdowns simultaneously for different subjects, accurate to the day. Expired countdowns automatically archive into milestone records of your hard work. 【App Lock — Lock Out Temptation, Focus on the Now】 Block social media and games while studying to enforce strict focus. Supports Scheduled Lock (e.g., auto-locking distraction apps from 7 PM to 10 PM during study time) and Manual Lock for spontaneous focus needs. Locked apps cannot be opened—helping you truly achieve "phone in hand, mind in the book." 【More Productivity Tools】 Junk Cleaner: Clear duplicate photos and invalid contacts to free up space and stop phone lag. Calculator: Scientific calculations + history log, an essential for exams and work. Timer: Precise stopwatch + countdown, perfect for oral practice. White Noise: Rain, ocean waves, café—create your focus space. World Clock: See time zones at a glance for global meetings. Currency Converter: Real-time exchange rates for business trips and travel. Why do 100,000+ users choose Lumtime? One app replaces multiple standalone tools, saving space and data. All AI tools are deeply optimized for study and work scenarios—not just a simple pile of features. Pure focus experience. Continuous updates with new practical tools every month. Most features are completely FREE to use! Download Lumtime Assistant today and make every day count! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/