A privacy-focused personal knowledge management system that allows offline use and encrypted data synchronization. It combines blocks, outlines, and bidirectional links to help users organize and refine their thoughts.

109+ iOS apps & games curated and reviewed
Finding the right siyuan app can be overwhelming with so many options. We've analyzed 109+ apps and games to bring you the best choices for 2026, from free options to premium solutions with advanced features.

A privacy-focused personal knowledge management system that allows offline use and encrypted data synchronization. It combines blocks, outlines, and bidirectional links to help users organize and refine their thoughts.






Organize your thoughts and ideas with a powerful knowledge base that utilizes local Markdown files. This app acts as your personal second brain, accessible on your mobile device for seamless note-taking and idea connection.






This open-source outliner helps you write, organize, and share your thoughts using local Markdown and Org-mode files. Manage tasks, build a digital garden, and integrate with various services for enhanced productivity.


This app functions as a knowledge treasury and creative toolkit, featuring bidirectional linking to create an interconnected web of ideas. It offers hierarchical tagging for structured organization, a spaced repetition system for efficient review, and panoramic statistics to visualize your learning journey. Data is securely stored using iCloud for privacy and continuity.




Capture adorable selfies with a variety of pink-themed filters and textures designed for a soft, fairy-like aesthetic. Enhance your photos with professional editing tools and flexible cropping options to perfectly suit your needs.


Capture, organize, and enhance your thoughts with a versatile digital notebook. Seamlessly blend handwriting, typing, and multimedia to annotate documents, record lectures, and generate summaries. Ideal for students and professionals seeking to boost productivity and learning.


This app allows users to edit photos with a variety of retro film filters, light leak effects, and vintage frames. It aims to give photos a nostalgic, analogue aesthetic, reminiscent of old film cameras. New content is frequently added to enhance the editing experience.


This platform connects singles seeking serious relationships. It offers intelligent matching algorithms, location-based discovery, and a social sharing feature to help users find compatible partners and build connections.


This minimalist app helps you stay organized with customizable widgets for your phone's home screen. It offers to-do lists, text notes, and a 28-day habit tracker. Personalize your notes with various styles, fonts, and colors.


Enhance your photos with a variety of charming filters designed to give them a sweet, Japanese-inspired aesthetic. Easily adjust filter intensity and save your creations in high quality. Share your beautifully edited images with friends and family.


Create unique and trendy photos with a vaporwave aesthetic. This app offers distinctive filters, professional editing tools, and various cropping options to make your images stand out.


Guide firefighters to rescue citizens from burning buildings by constructing ladders. Strategically extend ladders to save resources and build human chains when needed. Become a city hero by saving everyone.




A casual fighting game where players collect jelly men of different colors. Drop them onto drawing boards to create unique paintings and capture areas to win. Achieve higher star ratings by covering larger graffiti areas.




This is a four-player board game simulating world army wars, popular in China as Siguo-Junqi. It offers multiple game modes, including local and online play for two or four players, with various game types and language support.




Capture fleeting thoughts, interesting articles, or tasks to tackle later. This app consolidates search queries, notes, and unread articles into a single, organized list for efficient management and focus.


Design unique looks with a vast selection of clothing, accessories, and hairstyles. Get fashion matching suggestions and stay updated on trends. Simple click-based gameplay offers a pleasant and creative styling experience.