TinySci is a scientific calculator built for the Pebble Time 2 touch screen.

MATH THAT LOOKS LIKE MATH
What you type shows as real math as you go: fractions stack, powers rise, and the square root, pi and times signs are drawn properly. Hold on the display for a cursor to edit anywhere. Pull down from the top for a full-screen formula view.

EXACT ANSWERS
Answers come out exact when they can: 1/3 + 1/4 = 7/12, sqrt 12 = 2 sqrt 3, sin 60 = sqrt 3 / 2. The S<>D key switches between the exact form and the decimal.

SOLVE WITH THE = KEY
Type an equation in x, like x^3 - 2x = 1, and press =. No starting guess needed: it finds the roots in view and widens the search when there are none. Polynomials also get exact answers, like (1 - sqrt 5)/2, and the equation simplified. Put a y in it and it asks for a second equation, then solves the pair, curves included (a circle and a line). Three linear equations in x, y and z work too. Turn on the graph to see both sides plotted with the roots marked.

CALCULUS, AS NUMBERS OR FORMULAS
Definite integrals and derivatives at a point, or leave the limits empty to get the formula: d/dx of x^2 sin x is 2x sin x + x^2 cos x, and the integral of x sin x is sin x - x cos x + C. Factor and Expand work on polynomials: x^2 - x - 6 = (x + 2)(x - 3). Sums and products over a range too.

GRAPHING
Graph y = f(x), both sides of an equation, or curves in x and y like x^2 + y^2 = 25. Drag, zoom, and tap to read off points.

TOOLS
- Statistics: mean, median, standard deviation, min and max, and a straight-line fit with correlation
- Probability: normal distribution (density, P(Z < x) and its inverse), random numbers, prime factors
- Complex numbers: i, conjugate, real and imaginary parts, argument; polar and rectangular conversion
- Units: length, area, volume, mass, speed, temperature, pressure, energy, power and more
- Constants: physics, astronomy and math constants
- Bases: hex, octal and binary, with and, or, xor, not and shifts
- Memories A to F, plus x, y and z
- Number formats: normal, FIX, SCI and ENG

HISTORY
Your last 8 answers are saved. Tap one to bring it back and keep calculating with it.

YOUR WAY
In the app's settings on your phone, choose what each button does (pressed and held), turn the solver graph on or off, and set the number format, key buzz and backlight.

ALSO
sin, cos, tan, sinh, cosh, tanh and their inverses in degrees or radians, nCr, nPr, mod, gcd, lcm, round, floor, ln, log, log base b, e^x, 10^x, square, cube and nth roots, x^2, x^3, x^y, n!, |x|, %, 1/x, EE and Ans.

HOW TO USE IT
Swipe left or right to switch between the number and function keys, and swipe up for the solver keys. Select is =, Back deletes, Down clears and Up changes the page. Hold Up for History. Pull down from the display, or hold Down, for the formula view.

Nothing leaves your watch: no account, no internet, no tracking.

One app instead of five. Daily brings your reminders, notes, weather, parking spot and steps together on one glanceable watch screen. Hold Up, say “bins out at 8pm”, done, before your phone would have unlocked. No accounts, no setup, no learning curve. Your Pebble stops being a notification screen and becomes the whole answer. Phone stays in pocket. 

What’s next? Your upcoming reminders with a countdown. Hold Select and say it (“bins out at 8pm”), and the watch buzzes when it’s due. You can mark it done or snooze it.
Where am I going? Places you’ve saved by standing there (Home, Work, the car), with distance, direction and a compass arrow to walk you back.
What do I need to remember? Quick voice notes you tick off when done.
How am I doing today? Steps compared with your usual by this time, reminders done and left, the weather now and when rain is due.

Principles: one-second interactions, no typing or setup, no accounts. It’s deliberately not a fitness, messaging or social app. Settings are optional and taps only. Reminders can also appear in the Timeline.

Runs on: Pebble Time 2, Time / Time Steel, Pebble 2 and 2 Duo.

Deutsch

Nasu ist eine Medikamenten-Erinnerungs-App für die Pebble Time 2 – mit einer kleinen Krankenschwester, die dich auf ihrer Vespa begleitet und daran erinnert, deine Medikamente zu nehmen. Weil ich vergesslich bin und nichts Cooles gefunden habe, habe ich mir die App einfach selbst programmiert. Der Name spielt auf das japanische ナース (nāsu) für „Nurse / Krankenschwester“ an.

Verwalte bis zu 16 Medikamente. Deine Tabletten werden mit Form, Farbe, Größe und Beschriftung möglichst realistisch nachgebildet und als kleine physikalische Objekte auf der Uhr dargestellt, die auf die Bewegung deines Handgelenks reagieren. Darunter findest du eine detaillierte Liste mit Name, Dosierung, Menge und Beschreibung. Auch Injektionspens werden unterstützt.

Ob täglich, wöchentlich, monatlich oder alle X Tage: Du bestimmst den Einnahmerhythmus. „Alle X Tage“ lässt sich zwischen 2 und 255 Tagen mit einem Startdatum konfigurieren – beispielsweise alle 10 Tage. Alternativ kannst du Stundenintervalle von 2, 3, 4, 6, 8 oder 12 Stunden mit einer Startzeit einstellen.

Erinnerungen können per Ton und Vibration erfolgen und wiederholt werden, bis die Einnahme bewusst per Gedrückthalten bestätigt wurde.

Auf dem Smartphone kannst du Medikamente hinzufügen, bearbeiten, kopieren und per Ziehen umordnen. Mit Hell-/Dunkel-Theme und deutscher und englischer Oberfläche passt du Nasu an deine Wünsche an.

Nasu ist freie Software unter der GPLv3, ein Komfortwerkzeug und kein Medizinprodukt.


English

Nasu is a medication reminder app for the Pebble Time 2, featuring a little nurse who accompanies you on her Vespa and reminds you to take your medication. Because I’m forgetful and couldn’t find anything cool, I just programmed it myself. The name is a play on the Japanese word ナース (nāsu), meaning “nurse”.

Manage up to 16 medications. Your pills can be recreated with their shape, color, size and imprint and appear on the watch as small physical objects that react to the movement of your wrist. Below the simulation, a detailed list shows the medication name, dosage, quantity and description. Injection pens are also supported.

Choose daily, weekly, monthly or every-X-days schedules. Every-X-days schedules support intervals from 2 to 255 days with a start date—for example, every 10 days. Alternatively, set an hourly interval of 2, 3, 4, 6, 8 or 12 hours with a start time.

Reminders can use sound and vibration and repeat until the medication is deliberately confirmed with a press-and-hold interaction.

Add, edit, copy and reorder medications by dragging on your phone. Light and dark themes and German and English interfaces let you customize Nasu to your preferences.

Nasu is free software licensed under the GPLv3, a convenience tool and not a medical device.

Get the latest D.C. Metro train ETAs for your closest stations!

This app shows you live arrivals for WMATA train stations while incorporating the flair of D.C. Metro's iconic pylons and departure boards. The app shows your five closest stations and allows you to set up to five favorites as well so you can have quick access whenever you need it.

ETAs automatically update every ~30 seconds for as long as the app is open and the closest station will automatically update as you travel. 

F.A.Q:
Q: Is this app constantly tracking my location?
A: No! Your location data never leaves your phone. The app uses a custom server that compresses ETAs for the entire WMATA system into a ~1kb download. Your phone will then use your location and preferences to pick which stations get sent to your Pebble. This also has the benefit that once ETAs are loaded, scrolling through all the stations is instant.

Q: Why do the ETAs only update every 30 seconds?
A: WMATA only updates the underlying API every 30 seconds so there is minimal value in updating much more often than that. 

Q: Why does it sometimes take a long time to load ETAs when opening the app?
A: There's an issue I haven't found a solution for yet where the Pebble app takes its sweet time launching the  phone-side code that fetches ETAs. I'm hoping to solve this soon.

Find any Bluetooth device nearby by its signal strength: warmer, colder, found it.
Lost your earbuds, the tracker on your keys or the TV remote? Find My Anything turns your Pebble into a Bluetooth finder. The companion Android app scans for devices nearby, the watch lists them and guides you to the one you pick. Your phone can stay in your pocket.

NEEDS THE FREE ANDROID APP (not in the Play Store): get it at github.com/n0va-SIDEffects/pebble-findmyanything/releases, the settings page links to it. Android only, no iPhone.

Features
- Devices nearby, strongest first: trackers (AirTag, SmartTag, Tile), earbuds, phones, computers, watches, TVs, sensors
- Search screen: big signal number and a band that fills up as you get closer, green to red on colour screens; an arrow shows whether you are getting closer
- Buzzes faster the closer you get; Time 2 and Pebble 2 Duo beep as well
- Filter by type, a calm list that holds still while you scroll, touch on Time 2 and Round 2
- Settings in the Pebble app or in the phone app
- 7 languages: English, Deutsch, Français, Italiano, Español, Português, Nederlands

Buttons
List: Select searches the device, hold Select to filter.
Search: Select switches sound/vibration, Up resets the best value, Down turns on the backlight.

Good to know: signal strength tells you warmer or colder, not an exact distance. Only devices that are switched on and sending can be found; connected earbuds often stay silent.

Vibe coded from start to store. That is the only reason it exists alongside a full time job.

Free, open source (MIT) and without ads. If you enjoy it: buymeacoffee.com/SIDEffects

Vibe coded timer app, set the time (5s intervals), tap the screen to count down, it vibrates, tap again to restart. Remembers timing between opens. I use it for timing rest between gym sets, without having to fiddle with starting/stopping/setting the time every time.

Ukraine Alerts brings real-time air raid alert monitoring and situational awareness directly to your Pebble smartwatch. Featuring an interactive vector map of Ukraine, the app tracks sirens across all regions and districts with live updates every 15 seconds.

Compatible with Pebble Time (basalt), Pebble Time Round (chalk), and next-gen Pebble hardware (emery, gabbro).

Key Features:

🗺️ On-Device Vector Map: Custom lightweight scanline engine renders full vector boundaries for all 26 regions and districts with instant color-coded threat levels (green, yellow, orange, red). 
📍 "My Safety" & GPS Pin: Translates your phone's GPS location into an on-map marker and prioritizes alert status for your immediate area. 
⏱️ Active Sirens & Durations: Dedicated list view showing all alarmed regions and raions with live elapsed time counters (minutes, hours, days).

Controls:

• UP / DOWN (short click): Step / cycle through active alert regions & districts with auto-zoom 
• UP / DOWN (long press): Manual zoom in & out (1.0x – 4.0x) 
• SELECT: Open Active Alerts & "My Safety" list 
• BACK: Reset zoom / Clear selection / Exit
• Touch / Drag (emery, gabbro): Free pan across Ukraine, tap any oblast or raion for details

Privacy & Data:

Geolocation is processed locally on your phone to compute your relative position within Ukraine; it is never stored, logged, or shared externally. Data sources: vadimklimenko.com & ubilling.net.ua.

Get two-step sign-in codes on your Pebble, even when your phone is out of reach. Press Select to reveal up to three codes at once. Each account has its own countdown and timer bar so you can see how long its code will last. Press Back to hide the codes.

Press Up or Down to scroll one row at a time. On Pebble Time 2 and Round 2, you can also drag the list and release to snap it into place. To switch between light and dark, hold Up, press Select, then press Back. Your watch remembers your choice.

Set up GAuth in the standard Pebble phone app.

1. Open GAuth on your connected watch. In the Pebble phone app, open GAuth’s settings gear. Hold Select on the watch, then enter the 16 groups of four button presses shown on the phone. Keep the sequence private. Check that the eight characters on both screens match, press Select on the watch to save, and confirm on the phone.
2. In Google Authenticator, choose Transfer codes → Export codes. In GAuth settings, tap Choose QR image and select a photo or screenshot for each export QR. If you have two images, add both in either order to see one account list. On Android the camera option requests the rear camera. If your phone opens a photo picker, take a photo with the Camera app and select it. You can also paste export links or individual TOTP setup links and tap Review accounts.
3. Choose the accounts and labels you want and confirm replacement. Each import replaces every account on the watch, so include all the ones you want to keep. Tap Transfer to watch and press Select on the watch to approve.

After import, codes refresh automatically from the watch clock, even with Bluetooth off. GAuth supports six- and eight-digit time-based codes (TOTP) with SHA-1, SHA-256 or SHA-512 and up to 32 accounts, depending on label and key sizes. Counter-based codes (HOTP) are unsupported. To pick up later account changes, import a fresh export.

GAuth reads QR images on your phone and encrypts the selected accounts for your paired watch before transfer. Export photos, screenshots and links contain reusable keys. Keep them private and keep your original authenticator for recovery.

Say something in English or German and read it in the other language a second later. Opens straight into dictation; tap the screen or press SELECT to translate again, and scroll long translations by dragging or with UP/DOWN. Single German nouns come with their article. Needs your own OpenRouter API key (openrouter.ai), entered on the app's settings page in the phone app; it stays on your phone. You can also pick a different model there (default: Claude Haiku 5.5). Uses the phone app's dictation, so set speech recognition up there first.

A Pebble watchapp that shows the status of your Hyundai, Kia or Genesis car at a glance: whether the doors are locked, whether it is charging, and the battery level.

Data comes from the Pleos Vehicle Data API, the official vehicle data API of Hyundai Motor Group.

All data is processed locally on your Pebble and phone. Your API credentials are stored only on your phone and are sent only to Hyundai Motor Group's API (api.pleos.ai), never to any third party.

WARNING:
EU only. The app only works for cars registered in Europe. Hyundai currently provides the Vehicle Data API only in Europe, and issues My Vehicle Data API keys only to users there. It has been tested with a Hyundai IONIQ 5. Kia and Genesis use the same API but are untested.



CarGlance is an independent project. It is not affiliated with, endorsed by or sponsored by Hyundai Motor Company, Kia Corporation, Genesis Motor or Hyundai Motor Group. Hyundai, Kia, Genesis, Pleos, Bluelink, IONIQ and all other product and company names are trademarks or registered trademarks of their respective owners. They are used here only to describe compatibility.

Identify the music playing around you. Press Identify and your watch listens for up to ten seconds, then shows the song's title, artist and album. Your last ten matches stay on the main screen.

Needs a watch with a microphone (Pebble Time 2, Pebble 2 Duo or Pebble Round 2) and a phone app that streams the watch microphone to the phone. The recording is sent to Core Devices' recognition service, which uses AudD to find the song. No account or setup needed.

Lost your phone? Pick Find My Phone in your watch's launcher and hit select to start ringing your phone

Read your T3 Code threads and reply from Pebble Time 2.

Browse Ended, Working, Snoozed and Settled threads across your linked machines. Hold Up to change category. Titles use two lines and more threads load automatically as you scroll.

Select opens a thread. Select again opens saved replies, starting with a three-line summary. Scroll up for Refresh all, Settle, Snooze and Mark unread. Replies are shown as drafts before sending. System dictation is available when supported by your phone app and speech service.

Create a new thread from the Select-button menu: choose a machine and project, dictate your request, review and confirm. T3 uses the project defaults within your watch permissions. Interrupted creation can be resumed with the same request ID. Writing access and working system dictation are required.

Paste a T3 pairing link in settings to fill the server address and code automatically, or enter them separately. One connection includes machines linked in T3. No developer-hosted relay, account or analytics. Your phone needs HTTPS access or a Tailscale VPN to your server. Read-only permissions are available. Requesting a summary sends a prompt to your agent and may use provider credits.

English by default; French selectable in settings without reconnecting. Community translations welcome on GitHub.

Time 2 only in this release. Android has been used on hardware. iPhone setup and dictation are not yet validated: please share successful setups and problems through the iPhone compatibility form on GitHub.

Requires T3 Code with MCP and OAuth pairing support. Done means completed and unread on this watch; this read state is independent of desktop T3.

Unofficial client, open source under MIT.
Setup: https://g-cyrille.github.io/t3-pebble/
Privacy: https://g-cyrille.github.io/t3-pebble/privacy.html
Source and feedback: https://github.com/G-Cyrille/t3-pebble

Offline ophthalmology reference and refraction calculator for Pebble Time 2. Browse cup-to-disc ratio, Van Herick grading, gonioscopy landmarks and Shaffer grades, plus refraction tools for transposition, spherical equivalent, optical cross, retinoscopy working-distance correction, and vertex conversion. Designed for fast button and touch navigation and stores no patient data. Educational reference only; not a diagnostic or treatment system.

Current 2.0 Version: Simple app that uses the new Microphone API and sends raw audio data in a wav file format to a user configurable URL. Quick Launching it starts the dictation automatically and exits 3 seconds after displaying the response. Used for a personal project to route around the built in Cloud APIs and send .wav files to a personal server.

Previous 1.0 Version: Simple app that sends your Voice Dictation and displays the response without saving anywhere. Quick Launching it starts the dictation automatically and exits 3 seconds after displaying the response. Used for a personal project to route around the built in Cloud APIs and send .wav files to a personal server.