PromptKit
App
PromptKit saves AI prompts as reusable templates with fillable variables, tags, search, Quick Paste and an iOS keyboard extension. Your library is stored locally, with optional sync through your own iCloud account.
ZelonAI
ZelonAI · Catalogue
Explore apps, browser tools and open-source projects. Check each product’s availability, platforms, pricing and privacy details before choosing.
Small tools, careful systems, and local-first workflows for everyday work.
Manifesto
No. 00We believe good software should behave like a well-balanced pen: ready the instant you pick it up, silent the moment you set it down. Every product does one clear job and does it properly — and that focus delivers more ease and speed than any feature list ever could.
Explore apps, browser tools and open-source projects. Check each product’s availability, platforms, pricing and privacy details before choosing.
We only build tools that are valuable and inventive. Fewer releases rather than repeats; every launch must add something genuinely new — a faster path, a lighter step, a calmer screen. If it cannot, it does not ship. That is the whole editorial standard.
— The ZelonAI Workshop
Category
No. 01iOS and Mac applications built by ZelonAI for productivity, privacy, and hands-on AI learning.
14 modules
App
PromptKit saves AI prompts as reusable templates with fillable variables, tags, search, Quick Paste and an iOS keyboard extension. Your library is stored locally, with optional sync through your own iCloud account.
App
ImageTiny compresses, resizes, crops and converts photos on-device, and can remove EXIF and GPS metadata before sharing. Its free tier allows 2 images per batch and 50 per day; Pro raises the batch limit to 200.
App
FractionSolver calculates fractions and mixed numbers with step-by-step working. It includes arithmetic, simplification, comparison, decimal and percentage conversion. Camera scanning, history and worked-solution image export are Premium features.
App
MathBoard creates arithmetic practice sets and handwriting whiteboards, with automatic marking and a wrong-answer book. Core problem types are free; Pro adds PDF export, fuller explanations, drills, reports and batch generation.
App
PresentCam turns PDFs and images into annotated explainer videos with a presenter camera and teleprompter. It exports a composed MP4 without a watermark; free export reaches 1080p at 30 fps, while Pro adds higher-resolution and HDR options.
App
PresentCast builds ordered playlists of PDFs, photos and videos for AirPlay or compatible DLNA/UPnP receivers. Presenter View shows current and next content on the phone. Demo Display lets you rehearse without an external screen.
App
MegaText turns an iPhone or iPad into a large-text sign, scrolling LED banner or dot-matrix display. It saves reusable word sets and can recognize words from photos on-device. The current US App Store listing is a paid download.
App
MoodTide records five-level mood check-ins and short notes, with a calendar, insights and home-screen widgets. Records are local by default and can optionally sync through iCloud. Core journaling is free; Pro adds themes, enhanced widgets and export.
App
PopJoy is an offline bubble game with tap, shooter and two rain modes, themed sounds and haptics. Optional Pro plans add premium themes, materials and unlimited Endless mode; the listing names monthly and yearly plans.
App
MicroAgent is a 12-lesson visual course on agent loops, tools, planning, memory and multi-agent coordination. Replayable demonstrations and Swift/Python examples explain the runtime. Lessons s01–s03 are free; full course access is a one-time unlock.
App
MicroClaw is a preview of a runtime-systems course with shell and Python exercises. The described labs are planned teaching workflows, not proof of a released runtime or an approved App Store app.
App
SpeedPlayer helps you practice with your own audio or video using variable speed, A–B loops and per-file playback memory. Precision review uses 0.01x–0.24x; continuous playback uses 0.25x–4.00x. Optional Pro adds history, favorites and visual options.
App
FeelTemp plays built-in layered wind sounds with intensity controls, a sleep timer and background playback. Wind mode is free; a one-time lifetime unlock adds Rain, Snow, Storm and premium options. It does not physically cool a room.
App
HanziStroke teaches Chinese characters with stroke-order animations, pinyin, radicals, vocabulary and custom practice sets. Basic reference and one practice set are free; Premium unlocks tracing, demo-then-practice and more collections.
Category
No. 02Production web utilities for conversion, generation, compression, and image workflows.
10 modules
Web tool
BeConverter offers browser tools for units, files, images, text, data formats and localization. Choose a specific converter to see its accepted input, output and limitations rather than relying on a single accuracy promise.
Web tool
DoGenerator provides generators for mock data, identifiers, passwords, QR codes, barcodes and text assets. Tools expose their own format, validation and export options; the public product site is available now.
Web tool
LetCompress provides image, PDF, video and archive workflows. Choose the format-specific tool and inspect its processing notes; compression cannot always reach a chosen file size without a quality trade-off.
Web tool
ImageLean offers browser image compression, format conversion and editing workflows. Its format-specific pages explain output behavior and supported inputs so you can choose between file size, transparency and compatibility.
Web tool
GEOWriter combines search-result research, content briefs, drafting and publishing workflows for SEO and generative search. The official site lists account-based access, WordPress publishing and Google Docs export.
Web tool
OhToolBox Image Converter changes supported image formats in the browser, with batch and quality options. Select the output to match the recipient's requirements, not just a smaller extension.
Web tool
OhToolBox JWT Parser decodes a token's header and payload and shows signature information. Reading claims or expiry is not cryptographic signature verification and does not prove the token is trustworthy.
Web tool
OhToolBox Unit Converter converts length and other measurements, including weight, volume and area. Input a value with the source and target units explicitly selected.
Web tool
OhToolBox PDF Converter offers image or Word-to-PDF workflows, PDF merging and splitting, and PDF-page image export. Choose the task first and check the format-specific notes.
Web tool
OhToolBox Word Converter creates Word documents from supported text, Markdown and image inputs. Verify the exported document in your target editor before treating formatting as preserved.
Category
No. 03Open standards and toolchain components for next-generation AI workflows.
1 module