Work
18 run in the browser. 10 went through Apple review and ship natively on macOS or iOS. All 27 are free, everywhere, with no paid tier — and 26 of them open with no account at all. Each entry says what problem it solves and what it is built with, and every link goes to the running product.
Free. All but one open with no account at all.
An academic workspace that plans the week with the student
Students juggle a planner, a notes app, a flashcard app and a reminders list that never agree with each other.
Offline-first. Writes queue locally and reconcile on reconnect, so the planner keeps working with no network.
204 interactive physics, chemistry and maths simulations
Exam physics is taught as formulas to memorise rather than systems to manipulate and observe.
Each simulation is a self-contained engine with its own state model, not a shared template with swapped constants.
222 STEM missions where the answer comes out of a real equation, with Ask AI and Quiz me
Most educational games ask for a number that was decided first and dressed up as a story afterwards.
Every mission solves an actual equation. The target is derived from the physics, never authored to fit. The Ask AI tutor guides without giving away the answer, and every quiz question is solved a second time, blind, before a student sees it.
Forecasts and fifteen hazard engines with a multilingual assistant
Weather apps report conditions but not risk, and hazard warnings live on separate government portals.
Fifteen independent hazard engines behind one API, with a provider abstraction so the model layer can be swapped.
Speed tests, sixteen diagnostics and a copilot for a connection
When a connection is slow, the tools that could explain why are scattered across a dozen sites.
Ships as a web app and a native Mac app from one product definition.
A charting studio with editable cells and an axis quick-bar
Making one good chart usually means opening a spreadsheet, then a second tool to make it presentable.
Documents save to a portable .graphiq file, so a chart is not trapped in the tool that made it.
Paint-style pixel editor, 2D vector canvas and 3D modeller in the browser
Quick visual work forces a choice between a heavyweight desktop app and a toy.
21 QR types with gradients, logos and scan-health scoring
A styled QR code often stops scanning, and nothing tells you until it fails in the real world.
Scores scan reliability as you design and can repair a code that would have failed.
38 invoice templates with your logo, exported as PDF, PNG and more
Making a tidy invoice usually means a sign-up, a watermark or a spreadsheet, and your client details end up on someone else's server.
Nothing is saved: logos are resized on the device and the document lives only in the open tab.
Browser meetings with noise cancellation and no install
Joining a call should not require an account, a download, or a plugin.
A resume optimiser that keeps the resume on the device
Resume tools ask you to upload the most sensitive document you own to a server you do not control.
No accounts and no server-side storage. The key stays in the browser and the document never leaves it.
A single-page Gantt chart maker with no project to set up
Drawing one schedule should not mean adopting a project-management platform.
One file, no framework and no build step — it loads and runs in under a second.
Trip costs split between friends, with a budget, a forecast and an Ask button
Sharing a trip's costs usually means one friend keeps a spreadsheet and everyone else trusts it, or everyone signs up for an app that keeps the group's spending on its servers.
Local-first: each member's phone holds the whole group and devices sync directly, so there is no server copy to lose or leak. Typed questions to Ask can use AI only when the admin turns it on and each person agrees, and names are replaced with labels before anything is sent.
The cheapest Indian domestic flight by day and by time of day
Finding the cheapest day and hour to fly a domestic route means checking each date one search at a time and keeping the numbers in your head.
Fares are read from Google Flights and every result opens there to book; nothing is sold here, and no account, cookies or search history are kept.
A personal Happy Diwali card from 63 designs, in English or 12 Indian languages
Most free greeting-card sites want an account, add a watermark or upload your names and photo to make a card.
Cards are drawn in the browser and downloaded as PNG, JPG or PDF; names, wishes and photos never leave the device.
A private, offline diabetes logbook with doctor reports and carer links
Diabetes logbook apps usually keep every reading on their own servers, behind an account, before they will show a single trend.
Beta. The whole log stays on the device with no server account; it is a logbook, not a medical device, and never recommends doses.
22 tools for the jobs around a UPI payment, in English and 22 Indian languages
A small shop that takes UPI still makes its counter QR, its credit book, its receipts and its GST invoices by hand — and has no quick way to tell a scam QR or a fake payment screen from a real one.
Runs in the browser and keeps working offline after one visit. It never moves money, and the optional AI assistant never sees the saved UPI ID.
238 tools for files, images, video, audio, text, money and code
The everyday file jobs — merge a PDF, shrink an image, unzip an archive — mean handing the file to a website that keeps a copy.
No file is ever uploaded — every file tool reads it on the device and never transmits it, and works offline once loaded. The AI writing tools are the one exception: they take typed text, never a file.
Native Mac apps on the Mac App Store. Free downloads.
Speed tests, sixteen diagnostics and a copilot for a connection
When a connection is slow, the tools that could explain why are scattered across a dozen sites.
Ships as a web app and a native Mac app from one product definition.
Screenshot annotation and painting, processed on the device
Annotating a screenshot of something confidential should not involve a round trip to someone's server.
On-device inference through Apple's frameworks. Nothing is uploaded and no API key is needed.
System-wide search for files, apps and content
Finding a file by what is inside it is slower than it should be.
Background security and privacy monitoring
Security tools tend to demand attention constantly or disappear entirely.
A resource monitor that shows what the machine is actually doing
Activity Monitor answers what is running, not what is responsible for the fan noise.
Disk cleanup that explains what it is about to remove
Cleaners free space by deleting things they will not name in advance.
Native iPhone apps on the App Store. Free downloads.
Patrol tracking and incident reporting for security teams
Guard patrols are still logged on paper, which cannot prove where anyone actually was.
Checkpoints are GPS-verified and timestamped, so a completed patrol is evidence rather than a claim.
A calculator that reads expressions written in plain language
Real calculations arrive as sentences, and calculators only accept keypresses.
PDF compression that runs entirely on the phone
Shrinking a PDF usually means uploading it to a website that keeps a copy.
Local processing only. The document is never transmitted.
Compliant passport and ID photos from the camera roll
Passport photo rules are exacting, and a rejected photo costs an appointment.