SSH Client vs SQL Guide

Lightning fast SSH terminal with remote file access. No other app fuses your SSH servers and iOS devices as well as Secure ShellFish. Tap Get and see for yourself. Terminal supports standard text editing gestures for selection, scrolling and copy/paste as well as custom gestures to send arrow keys and tabulator making shell entry and full screen editing with vim or emacs delightful. Bar above the keyboard makes it easy to type special keys and insert snippets. Select and drag filenames out of the terminal as actual files and drag files from other apps into the terminal to upload. Use built-in tmux support to persist terminal sessions if you lose Internet access, pick existing sessions with thumbnails and Handoff sessions between devices. Server file system is available in the Files app and recently accessed files and directories are cached to make them available when offline. Use apps like Textastic and iA Writer for a native editing experience working on your remote server files. Upload files or entire directories from the share sheet with minimal friction as the last destination directory for each kind of file is remembered or automate file transfers in the Shortcuts app. Connect to your Mac, Synology NAS and any other SSH server or create new Digital Ocean droplets right from the app. Secure ShellFish is useful as a free app and paying pro users can disable ads in the terminal, upload through the Files app and configure unlimited number of servers.

SQLGuide — Learn SQL, One Chapter at a Time SQLGuide is a modern, lightweight SQL learning app built around short chapters, interactive quizzes, and a practical reference library. It is designed for beginners who want to learn core SQL concepts clearly and build confidence with real query patterns. Learn by doing SQLGuide combines guided reading with quick practice so you can move from understanding → recall → application: - Read a chapter with focused explanations and examples - Practice with multiple quiz formats - Keep a reference library for fast lookups - Bookmark what matters and come back later Guide (SQL Basics) Progress through a structured curriculum that starts from fundamentals and builds up step by step: - Queries: SELECT, DISTINCT, LIMIT - Filtering: WHERE, AND/OR, IN, BETWEEN, LIKE - Sorting and grouping: ORDER BY, GROUP BY, HAVING - Aggregation: COUNT, SUM, AVG, MIN, MAX - Joins: INNER/LEFT/RIGHT, practical join patterns - Data shaping: CASE, COALESCE, NULL handling - Subqueries, CTEs, UNION - Basic DDL/DML concepts: CREATE TABLE, INSERT, UPDATE, DELETE (concepts and patterns) Quiz (with explanations) Practice with short, focused prompts that reinforce both syntax and reasoning: - Clear explanations after each question to help you learn from mistakes - SQL snippets and realistic scenarios that mirror everyday query work - Smooth “continue” flow to keep you moving without friction - Progress tracking that shows what you have mastered and what is next Reference (quick SQL lookup) A curated reference list for frequently used SQL topics, with concise notes and examples to reduce context switching while you learn. Bookmarks and progress - Bookmark chapters and reference topics - Track course progress and quiz completion - Earn badges as you complete milestones Who this is for - Students learning SQL fundamentals - Developers refreshing core SQL skills - Analysts practicing queries and concepts - Anyone preparing for SQL interviews or assessments Privacy and access No account required. No login. No external sign-in at all. Everything is free. Download and get all content immediately.