Mac Sai: the open-source Mac cleaner, optimizer, and malware scanner. A free, Apple-notarized alternative to CleanMyMac, built with Swift 6 and SwiftUI.

Your Claude Code, Everywhere.

Free, open-source CleanMyMac alternative for macOS that frees disk space without deleting anything it shouldn't.

Free Community Edition standalone amp sim and guitar effects rack with a local signal chain, cabinet IR, tuner, looper, recorder, and reusable presets.

The high-velocity, shortcut-first brain dump for Windows. ThoughtsPlus eliminates the friction of bloated productivity tools, allowing power users to capture ideas, sketch, and track progress without ever leaving their workflow. No cloud, no telemetry, just pure focus.

A privacy-first, subscription-free iOS period and cycle tracker. No cloud, no accounts—just your data on your device, exactly where it belongs.

Free & Offline currency exchange API with 25+ years of historical rates for 160+ currencies. In-memory database, instant conversions, no external calls, no third party, Docker-ready.

Community hub for Your Trainer — an indoor-cycling Android app, developed in Ireland. Records personal bests per rider, supports multiple riders per install, works on a one-time purchase. Use Discussions for Q&A, feature ideas, workout / route exchange, and compatibility reports; Issues for confirmed bugs.

Free, private GitHub notes. No backend. No subscription. ChatGPT integrated.

Right-click any folder to launch your local AI coding assistant and email assistant. Offline, no subscription, no data leaving your network.

TOEIC 買い切り（サブスクなし・広告なし）アプリの厳選リスト — 単語・リスニング・総合型をタイプ別に整理。Curated pay-once TOEIC apps.

Docs for BatchFile Organiser — bulk file organisation tool for Windows. Sort, rename, and arrange files in batches. Detect duplicates, undo changes. Fully local, no cloud, no subscription.

Curated iPhone & iPad apps for health & wellness — period tracking, sleep, focus — on-device, ad-free, pay-once

Docs for BatchResize Image — bulk image resizer for Windows. No subscription, fully local. Resize folders for social, web, email, and marketplaces with presets, crop controls, and live preview.

Beautiful OG images in one line of code. No monthly fees. 9 one-time payment, use forever.

Curated pay-once (no-subscription) iPhone/iPad to-do & checklist apps — the rare one-time-purchase, no-ads options vs subscription alternatives.

Curated list of pay-once (no-subscription) iPhone & iPad apps

Docs for BatchWatermark Image — batch watermark tool for Windows. Add text and logo watermarks to full image folders. Preview, tune placement and opacity. Fully local, no cloud, no subscription.

Docs for BatchEnhance Image — batch image upscaler for Windows. Upscale and prepare image folders for high-quality print. Fully local, no cloud, no account, no subscription.

3thousand30 — affordable, privacy-first, buy-once tools that make ordinary people more capable, creative, and independent. No subscriptions, no tracking, no lock-in. Built for 3030, not for next quarter.