Horizontal Accelerometer vs Hotaglow

“Horizontal Accelerometer” displays horizontal acceleration in real time and uses sound to indicate changes in acceleration. (Uses) • Automotive: Measures vehicle acceleration, deceleration, and lateral G-force. Color zones and sound make changes in acceleration easier to recognize while driving. • Table leg rigidity testing: Evaluate the rigidity of table legs by measuring acceleration. • Engineering education: Students can measure and experience acceleration firsthand, helping them understand the equations of motion. • Children’s toy: The Smooth mode of the Acceleration intensity sound feature, which changes sound according to acceleration, is a big hit with children! • Musical instrument: You can also use it as a musical instrument. Give it a try! (How to Use) 1. Secure the Device Secure your device (iPhone or iPad) to the object being measured. It does not need to be level. • Measuring vehicle acceleration: Secure the iPhone firmly to the dashboard at an angle that makes the screen easy to see. • Testing table leg rigidity: Place the iPhone on the tabletop. If it slides when you shake the table, secure it with tape or a similar material. • Using it as a toy: Hold it in your hand and move it around freely. 2. Calibration Tap “Calibration" button, then tap "Calibrate". The horizontal acceleration value will begin to appear. When measuring vehicle acceleration, perform calibration while the vehicle is stationary on a level road. 3. Acceleration intensity sound When Acceleration intensity sound is enabled, sound begins playing in response to acceleration as soon as the horizontal acceleration value starts being displayed. (Screen Display) • The number at the top of the screen shows the real-time horizontal acceleration value. • Peak Hold shows the peak horizontal acceleration value. It resets after the configured time has elapsed. • Max shows the maximum horizontal acceleration value. Tap Reset Max to reset it. • The acceleration value can change color to red or yellow according to the configured thresholds. (Sound) • Acceleration intensity sound can be turned on or off. You can choose between Smooth and Step modes for sound variation. • Sound can be played when the acceleration value changes color. • Adjust the volume using the iPhone’s volume buttons. Sound also stops when you close the app. (Calibration Dialog) Tap “Calibration" button on the main screen to open the Calibration dialog. • Run Calibration: Calibrates the device in its current mounted position. • Load Calibration: Loads a previously saved calibration. • Save Calibration: Saves the current calibration. (Settings Dialog) Tap “Settings" or "Settings / Remove Ads” button on the main screen to open the Settings dialog. • Settings: Opens the Settings screen. • Remove Ads & Add Features: Opens the in-app purchase screen. (Settings Screen) • Color zone (Value G or more): Set the color zone thresholds and turn color changes and sound on or off. • Peak hold time (s): Set how long the peak value is retained. • Harshness cut filter: Turn the Harshness Cut Filter on or off. Harshness refers to impact vibrations. • Desensitization (%): Set the percentage by which sensitivity is reduced. • Acceleration intensity sound: Turn the feature on or off and select Smooth or Step mode. • The values in parentheses to the right of each setting indicate the default values. (Notes) • Tilting the device also tilts the horizontal plane established during calibration, causing the acceleration value to change. • Do not look at or operate the device screen while driving. Secure the device and complete all necessary settings in a safe location before driving. • The developer assumes no responsibility for any loss or claims by third parties which may arise from the use of this app. Terms of Use: This application is provided under the Apple Standard End User License Agreement (EULA). https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Hotaglow turns your phone into an offline SOS beacon using light, sound, and radio - for the outdoors and for emergencies. From the trail, the campsite, and the dark walk home, to blackouts and disasters: call for help even with no signal, no Wi-Fi, and no power. WHEN YOU'LL USE IT - Hiking, camping, fishing, solo trips - signal your position with a powerful light after dark - Walking home at night - a safety alarm and light to protect yourself - Car camping, blackouts, outages - light your hands and send a signal - Festivals and events - a beacon when you get separated from your group - And earthquakes, typhoons, and outages - ready when the network goes down FULLY OFFLINE BY DESIGN - We run no servers - zero analytics SDKs, zero ad SDKs, no account - Every rescue feature works in airplane mode and out of coverage - Your data never leaves your device - the only thing that needs a connection is buying or restoring PRO, which the App Store handles BE SEEN - LIGHT - Screen strobe: flashes the whole display at maximum brightness as a rescue light - SOS in Morse (... --- ...) and steady flashes visible from a distance - Marquee banner: shows SOS / HELP in large scrolling text BE HEARD - SOUND - 8 survival sound signals: rescue whistle, personal alarm, CPR 100 BPM pacer, high-freq alert, and more - Acoustic modem: send short messages by sound when your voice can't carry BE FOUND - RADIO (no network needed) - Nearby mesh relay (TTL 5): hops your SOS phone-to-phone with no cell tower (iPhone to iPhone, or Android to Android; acoustic and QR work between any devices) - QR carousel: show a QR on screen, the other phone reads it with its camera - fully offline - Inbox to read messages from people nearby READY FOR DISASTERS, TOO The gear you use outdoors becomes your emergency kit. When the network drops first, Hotaglow keeps working on the device alone - no new skills to learn. Everyday use is your drill. HOTAGLOW PRO (one-time ¥500 / in-app purchase) Unlocks tools you'll use every day, outdoors and at home. All rescue features stay free. - Custom light (color & rate) for a camp lantern or signal flash - Custom tone / any-BPM metronome - Offline QR maker - Outdoor sounds (bear bell, animal deterrent) to prevent encounters - Free-text SOS broadcast - Marquee presets - Custom home layout DESIGN A fixed tactical UI - pure-black background, a single accent color, monospaced type - for low power draw and maximum legibility in the dark and under stress. ------------- IMPORTANT SAFETY NOTICE Hotaglow is NOT a replacement for official emergency services (911 / 119 / 112, etc.). In an emergency, contact the authorities first whenever possible. This app does not guarantee rescue or survival; it is a tool to supplement and extend your ways of signaling for help. The screen-strobe and light-flash features produce intense flashing light - use with caution if you have a history of photosensitive epilepsy.