# ToolKK: 1000+ Utility Toolbox — PDF, Image, OCR & QR Converter > Comprehensive online toolbox with 1000+ free utilities for various tasks. (iPhone/iPad app by Chengdu Yunbyte Network Technology Co., Ltd..) - Source: https://appshunter.io/ios/app/toolkk-1000-plus-utility-toolbox/id1669654009 (this page in markdown: same URL + `.md`) - Developer: [Chengdu Yunbyte Network Technology Co., Ltd.](https://appshunter.io/developer/1804864993) - Category: Utilities, Productivity - Price: Free with in-app purchases - Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed - Age rating: 12+ - Requires: iOS 13.0 · 109 MB - Languages: American English, Chinese (Simplified, China) - Released: 2023-02-21 - Data updated: 2026-10-07 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/toolkk-1000-plus-utility-toolbox/id1669654009/reviews.md ## What is ToolKK? ToolKK brings more than 1,000 practical tools into one searchable app. Handle PDFs and images, extract text with OCR, create QR codes, calculate, convert units, use phone sensors, and format developer data without installing a separate app for every small job. SEARCH, FAVORITES, AND RECENT TOOLS Find tools by keyword, save favorites, and return through recent tools. Multiple layouts and custom ordering help you organize your toolbox. PDF AND DOCUMENT TOOLS Merge or split PDFs, delete or extract pages, remove blank pages, resize pages, read files, and manage encryption or permissions. Convert PDFs to common document, image, web, and ebook formats, or turn images and documents into PDFs. File tools run after you choose a file; review the exported result before relying on it. IMAGE, OCR, AND ID PHOTO TOOLS Compress, crop, resize, rotate, combine, watermark, and convert common image formats, or turn images into a PDF. Extract text with OCR, remove backgrounds, create passport or ID photos, pick colors, and convert HEX, RGB, HSL, and CMYK values. CALCULATORS AND CONVERTERS Use scientific, percentage, age, date, loan, compound-interest, ROI, and CAGR calculators. Convert common units, currencies, number bases, Unix timestamps, pixels, and centimeters. Health calculations are provided for general reference only. QR CODES, BARCODES, AND TEXT Create and decode QR codes for websites, text, contacts, and Wi-Fi; add a logo, process codes in batches, and work with common barcodes. Count words and characters, clean or sort text, change letter case, edit Markdown, and compare text. PHONE TOOLS Use a flashlight, on-screen ruler, protractor, compass, coordinates, bubble level, decibel meter, magnifier, mirror, or magnetic field detector. Other tools include a teleprompter, Pomodoro timer, scoreboard, stopwatch, countdown, and flip clock. DEVELOPER AND NETWORK TOOLS Format, validate, or minify JSON; convert XML and YAML; encode or decode Base64, URLs, and Unicode; test regex; and work with timestamps, UUIDs, Cron, JWT, hashes, encryption, text diffs, and HTML escaping. Network utilities include Ping, DNS, WHOIS, IP conversion, and test-data generators. PRINTABLE WORKSHEETS AND LEARNING TOOLS Create tracing sheets, stroke-order and pinyin practice, grids, alphabet and word worksheets, math exercises, Cornell notes, lined paper, and dot-grid paper. AI WRITING, AUDIO, AND VIDEO Rewrite, summarize, or translate text and generate reports or SEO metadata. Audio and video tools cover trimming, merging, reversing, rotating, speed changes, GIF creation, audio editing, text to speech, and M3U8 playback. Availability is shown on each tool page. PRIVACY, PERMISSIONS, AND SYNC ToolKK is available on the web, in the app, and through a mini program. Sign in for account-based favorites, benefits, or supported sync; basic tools that do not require an account remain available without signing in. Most tools process data on your device or within the page. Some rely on a server or external API and may transmit data to provide the feature. Details appear on the relevant page or in the privacy policy. Permissions are requested when you start a related feature. FREE TO START, OPTIONAL MEMBERSHIP ToolKK includes many free tools and optional Premium and Pro memberships. Benefits, limits, billing, renewal, and purchase restoration are shown before purchase. IMPORTANT Health, finance, tax, legal, and engineering results are for reference, learning, or estimation only. They are not professional diagnoses, advice, or certified reports. For important decisions, verify official information and consult a qualified professional. Report incorrect formulas, unclear explanations, translation issues, or page errors through Tool Feedback in the app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.toolkk.com/privacy ## Key features - 1000+ free online utilities - Instant access, no installation - Local processing for privacy - Scientific calculator and converters - Image and PDF manipulation tools - Developer tools (JSON, Base64, hashing) - QR code generator and reader ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Premium Monthly Membership | $0.99 | per month | | Premium Annual Membership | $9.99 | per year | | Pro Monthly Membership | $1.99 | per month | | Pro Annual Membership | $29.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | 10,500 Point Craft Coins | $14.99 | one-time | | 120,000 Point Craft Coins | $149.99 | one-time | | Premium Lifetime Membership | $19.99 | one-time | | Pro Lifetime Membership | $39.99 | one-time | | 500 Point Craft Coins | $0.99 | one-time | | 100 Point Craft Coins | $0.99 | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/toolkk-1000-plus-utility-toolbox/id1669654009/reviews.md ### 5/5 — 工具不错 *2026-08-03* 继续加油 ## Frequently asked questions about ToolKK ### What is Toolkk? Toolkk is an all-in-one online toolbox providing over 1000 free utilities for calculation, conversion, image processing, PDF management, and developer tasks. It offers instant access without requiring any installation. ### Does Toolkk have ads? Yes, Toolkk contains advertisements. As a free application with in-app purchases, ads are displayed to support its continued development and free access to essential tools. ### What types of calculators are available in Toolkk? Toolkk offers a wide array of calculators including scientific, percentage, age, loan, mortgage, interest, BMI, date duration, and tax calculators. It also includes currency and base converters. ### Can Toolkk help with image and PDF files? Yes, Toolkk provides tools for image compression, format conversion, cropping, resizing, watermarking, and converting images to PDF. It also offers PDF conversion, compression, merging, and splitting functionalities. ### What developer tools does Toolkk offer? For developers, Toolkk includes JSON formatter/validator, XML/YAML converters, Base64 encoding/decoding, URL encoding/decoding, regex testing, timestamp conversion, hash generation (MD5, SHA1, SHA256), and JWT decoding. ### How does Toolkk protect user privacy? Toolkk prioritizes user privacy by processing most tools locally within your browser, meaning your data is not uploaded to their servers. This ensures sensitive information remains secure. ### What are the subscription options for Toolkk? Toolkk offers several subscription plans, including Premium Monthly ($0.99/month), Pro Monthly ($1.99/month), Premium Annual ($9.99/year), and Pro Annual ($29.99/year), providing access to enhanced features. ### On which devices can I use Toolkk? Toolkk is available on iPhone, iPad, and iPod. The app is designed to be accessible across various Apple devices. ## Version history (last 5 releases) ### 5.0.0 — 2026-09-29 ToolKK 5.0 is a major upgrade. The Home, Discover, Search, Profile, and membership experiences have been redesigned to make tools easier to find and use. WHAT'S IMPROVED - Redesigned Home, Discover, Search, and Profile with clearer information and faster navigation. - Added curated categories, recently popular rankings, and recommendations based on favorites. - Upgraded rewarded access. Some membership, paid, or limited tools can now be unlocked for the current use by watching a video. - Rebuilt Daily Rewards and the Task Center, with check-ins and video tasks that offer Craft Coins and trial membership benefits. - Improved guest access so people can browse tools, view rewards, and try supported features without registering. - Added a Message Center and unread indicators for important notices and account updates. - Improved membership purchase, Craft Coin top-up, membership redemption, and paid-tool access flows. - Improved file downloads, system sharing, image saving, and content export. - Improved categories, favorites, recent tools, tool details, and landscape support for the ruler and protractor. - Added local icon assets and loading fallbacks for faster, more reliable tool icons. - Improved in-app updates, account security, local reminders, localization, and the timing of the App Store system rating prompt. - Fixed known issues and improved ad loading, page responsiveness, and overall stability. RECENTLY ADDED TOOLS Learning and math practice: multi-number addition and subtraction, integer decomposition, make-ten and subtraction strategies, unit conversion, number sequences, number comparison, and vertical arithmetic worksheet generators. Paper and study aids: Cornell notes, dot-grid paper, lined paper, and pinyin stroke-order worksheet generators. Early math and interactive learning: 3D shape sorting, position practice, comparison balance, numbers to 100, carrying and borrowing within 20, picture equations, number bonds, Chinese currency, clock reading, and visual make-ten strategy demonstrations. Office and productivity: online teleprompter, Pomodoro timer, PDF-to-EPUB converter, and multi-engine search. Device and everyday tools: local IP lookup, magnifier and mirror, magnetic field detector, compass and coordinates, bubble level, flashlight, and scoreboard. Fun and interactive tools: scrolling LED text, digital wooden fish, 2048, number puzzle, Sokoban, maze, tangram, 3x3 cube, block puzzle, snake, and Chinese chess. ToolKK 5.0 makes tools easier to discover, faster to use, and smoother from start to finish. More practical tools are on the way. Thank you for using ToolKK! ### 4.4.0 — 2026-08-25 [New Features] - Added a feedback entry point within tool details, allowing direct submission of issues, suggestions, and screenshots. - Optimized app cold start and loading performance under poor network conditions for smoother tool list display. - Improved favorite status handling, search experience, and page interaction feedback. - Refined the App Store rating prompt, membership pricing display, and multilingual text. - Fixed issues related to tool navigation, login callbacks, and page stability. [New Tools] Learning & Math: 14 tools Pinyin & stroke order worksheets, vertical calculation exercises, "Make-10" method, "Break-10" method, "Flatten-10" method, learning to tell time, recognizing RMB currency, number composition and decomposition, picture-based equation formation, addition/subtraction within 20 (with regrouping), numbers within 100 & abacus/counter, interactive balance scale for comparing values, spatial orientation (up/down/left/right), 3D shape classification. Fun & Entertainment: 9 tools 2048, Number Puzzle (Klotski-style), Sokoban, Maze Generator, 3x3 Rubik's Cube, Tangram, Chinese Chess, Snake, Tetris. Documents & Productivity: 1 tool PDF to EPUB Converter. ### 4.3.0 — 2026-08-04 What’s New in Toolkk 4.3.0 • Added rewarded access: watch a short video to unlock selected premium or restricted tools for one use. • Added daily rewards, including limited-time membership access and Toolkk Coins. • Improved file downloads, system sharing, image saving, and export workflows. • Enhanced the launch experience, tool lists, icon loading, and tool detail pages. • Improved Google Sign-In, English localization, and multilingual privacy content. • Fixed issues that prevented some premium and paid tools from opening. • Improved ad loading, stability, and overall performance. Recently Added and Popular Tools: Life & Health: Reaction Time Test, Adult Height and Weight Chart (2026), Child Height and Weight Chart (2026), Calories Burned Calculator, Headphone Tester Pro, Spam Phone Number Lookup, Phone Number Value Estimator, Chinese Zodiac Lookup, Pants Size Chart, and Shoe Size Conversion Chart. Office & Development: Chinese Word Tracing Worksheet Generator, Excel to Phone Contacts Converter, Excel to JSON Converter, HTML Table Generator, Online Text Formatting Tool, Snake Case & Camel Case Converter, and Vertical Text Converter. Finance: Tax Late Fee Calculator, Yu’e Bao Earnings Calculator, Time Deposit Interest Calculator, Compound Interest Calculator, Interest Rate Change Repayment Calculator, Bank Deposit Interest Calculator, and Credit Card Installment Calculator. Images & Creativity: Solid Color Image Generator, Letter Icon Generator, Traditional Chinese Color Palette, Text-to-Speech Generator, and Online Audio Editor. More Useful Tools: Online Stopwatch Timer, Projector Throw Distance Calculator, Curtain Fabric Calculator, and Zen Text Encryption & Decryption Tool. More useful tools are added regularly. Thank you for using Toolkk! ### 4.2.0 — 2026-05-16 New - On the discovery page, there are 4 tool entry cards: Employee Tools, Paid Tools, Latest Tools, and Independent Tools. ### 4.1.0 — 2026-03-26 This update from Apple will improve the functionality of this app. No new features are included. ## Apps similar to ToolKK | App | Rating | Price | Category | | --- | --- | --- | --- | | [ACATW复古工具箱-100种日常生活必备神器](https://appshunter.io/ios/app/acatw-100/id778193888) | 4.7 (103) | Free | Utilities | | [多啦工具箱](https://appshunter.io/ios/app/id1613344434) | — | Free | Utilities | | [ToolCat - Useful toolbox](https://appshunter.io/ios/app/toolcat-useful-toolbox/id6475874471) | 5.0 (2) | Free | Utilities | | [ToolBox+ All-in-one](https://appshunter.io/ios/app/toolbox-plus-all-in-one/id6504269577) | — | Free | Utilities | | [PDF Toolbox:PDF Editor&Convert](https://appshunter.io/ios/app/pdf-toolboxpdf-editor-and-convert/id6786572422) | — | Free | Utilities | | [一木百宝箱](https://appshunter.io/ios/app/id6761983084) | — | Free | Utilities | ## More apps by Chengdu Yunbyte Network Technology Co., Ltd. - [NoiseTrace - Decibel Meter](https://appshunter.io/ios/app/noisetrace-decibel-meter/id6773603791) - [Hemiao AI](https://appshunter.io/ios/app/hemiao-ai/id6791895028) - [TraceCraft:Handwriting](https://appshunter.io/ios/app/tracecrafthandwriting/id6804556625) All apps by Chengdu Yunbyte Network Technology Co., Ltd.: https://appshunter.io/developer/1804864993 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-07.*