EARBOOST for better listening vs Hinge Door Angles

The app is compatible with commercially available Bluetooth earphones and wired earphones, letting you use your smartphone and earphones like a hearing aid. ■Compatible with commercially available earphones The app is compatible with commercially available Bluetooth earphones and wired earphones, letting you use your smartphone and earphones like a hearing aid. ■Easily adjust to your usage context With ambient noise suppression and volume control, you can adjust what you hear to different situations, such as conversations or movies. ■Adjust the sound to what you are hearing Set amplification/reduction levels for the low, medium, high, and super high tone ranges. This lets you achieve a sound tailored to your ears. ■Adjust left and right ears separately Adjust the sound to the differences in your left and right ears. [Recommended for] ■Those who feel they have started having trouble hearing ■Those who don't feel a need for a full hearing aid ■Those looking to hear distant conversations and small sounds better [Key features] ■Easy steps to performing a hearing test The hearing test is simple: just tap the button when you hear a sound. This lets you perform a hearing test at 125, 250, 500, 1000, 2000, 4000, and 8000 Hz for the left and right ears. ■View audiometry results in a graph After taking the test, check your results in a graph format. ■The app automatically adjusts audio based on measurement results. The app automatically amplifies frequencies that are difficult to hear, using the results of your measurements. ■Save multiple audio settings You can save multiple sound settings that you've adjusted to your preferences. You can then switch between these saved preferences depending on the usage context or your desired sound. [Pricing] The "hearing aid" function, which is the main feature of this app, can be used by subscribing to one of the following usage tiers. - Annual payment - Monthly payment - Weekly payment *There is no difference in functionality among these tiers. The hearing measurement functionality is available free of charge. ■Automatic recurring billing If you do not cancel automatic renewal within 24 hours of the scheduled renewal date, the cycle will automatically renew. ■Unsubscribing To cancel, Select Settings > iTunes Store and App Store > Subscriptions > Ear Boost > Cancel Subscription. ■Restoring purchases If you have an existing subscription, you can restore it via the "Restore purchase information" section in the app's menu. ■Cancellation Canceling a subscription can only be done by the methods above. ■Terms of Use https://earboost.jp/enTermsOfService.html

Hinge is a door-hardware reference tool for homeowners, carpenters, and builders. It covers door swing geometry and hinge selection — nothing else. DOOR SWING ANGLES The Angles tab shows visual diagrams of a door at six swing positions: 30°, 45°, 60°, 90°, 120°, and 180°. Each diagram renders the clearance arc swept by the door and calculates the approximate floor-space depth required at each angle, so you can check whether a door fits a space before installation or renovation. HINGE CATALOGUE The Hinges tab is a reference guide to 12 common hinge types used in residential and commercial construction: - Butt hinge — the standard mortised interior and exterior door hinge - Continuous (piano) hinge — full-length hinge for even load distribution - Pivot hinge — top-and-bottom mount for heavy frameless and glass doors - Concealed (Euro) hinge — fully hidden cabinet hinge with 3-way adjustment - Barrel hinge — cylindrical hinge that recesses into the door edge - Spring-loaded hinge — self-closing hinge for fire doors and screen doors - Gate hinge — heavy-duty outdoor hinge for garden and farm gates - Double-action hinge — allows door to swing in both directions - Ball-bearing hinge — smooth, low-friction hinge for high-traffic doors - T-strap hinge — surface-mounted strap hinge for barn and shed doors - H-hinge — traditional surface-mounted hinge for cabinets and shutters - Knife hinge — thin mortised hinge for precision inset cabinet work Each entry lists typical use cases and load capacity, so you can select the right hardware for the load and application. MY DOOR SPECS The Specs tab lets you save your own door measurements: door name, width in centimetres, swing direction, current open angle, and clearance notes. A computed clearance depth is shown for each saved door so you can track what space each door sweeps. Everything works fully offline. No account, no network access, no ads, no tracking. All door spec data is stored locally on your device.