# Toolkk: Tools, Calculator, PDF — Converter, QR, JSON & Password

> 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-tools-calculator-pdf/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 · 81 MB
- Languages: American English
- Released: 2023-02-21
- Data updated: 2026-08-14
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/toolkk-tools-calculator-pdf/id1669654009/reviews.md

## What is Toolkk?

Toolkk is an all-in-one online toolbox with 1000+ free, practical tools. No installation — open and use instantly. Most tools run locally in your browser to protect your privacy. Whether you're a developer, designer, student or professional, Toolkk helps you calculate, convert, process and look things up — all in one place.

CALCULATE & CONVERT
Scientific calculator, percentage calculator, age calculator, loan & mortgage calculator, interest calculator, BMI, date duration, tax calculator; unit converter (length, weight, temperature, area, volume, speed, pressure), currency converter, base converter (binary/octal/decimal/hex), roman numerals and timestamp converter.

IMAGE TOOLS
Image compressor, image format converter (PNG/JPG/WebP/GIF/BMP), crop & resize, watermark, image stitching, image to PDF, Base64 image, color picker & color converter (HEX/RGB/HSL/CMYK), QR code reader.

PDF & DOCUMENTS
PDF converter, PDF compressor, image to PDF, merge & split PDF, Markdown preview & convert, rich text tools.

QR & BARCODE
QR code generator (URL/text/contact/WiFi), QR code reader, barcode generator, QR with logo.

DEVELOPER TOOLS
JSON formatter / validator / minifier, XML & YAML converter, Base64 encode/decode, URL encode/decode, Unicode encode/decode, regex tester, timestamp & date converter, hash generator (MD5/SHA1/SHA256), UUID generator, random string & number generator, Cron parser, JWT decoder, text diff, HTML escape.

SECURITY & ENCRYPTION
Password generator, encryption & decryption (AES/DES/RSA), hash checker, Base64, URL-safe encoding — keep your data and privacy safe.

TEXT TOOLS
Word & character counter, case converter, text dedupe, remove blank lines, sort lines, Markdown editor.

DATE & TIME
Date duration, countdown, world clock, timestamp converter, Cron expression.

FINANCE
Loan & mortgage, interest & compound interest, currency converter, tax and ROI calculators.

HEALTH & LIFE
BMI, body fat, BMR, due date, random picker & decision wheel.

WHO IT'S FOR
- At work: schedule with date/workday tools, handle files with document & PDF tools.
- Developers: JSON, Base64, regex, timestamp, hash, UUID — right at hand, no site-hopping.
- Students & teachers: scientific calculator, unit & base conversion, a study companion.
- Designers & creators: image compression & conversion, color tools, QR codes.
- Everyday: BMI, due date and handy life calculators.

WHY TOOLKK
- 1000+ tools, updated regularly
- Instant access — no download or sign-up to start
- Privacy-first: most tools process locally, nothing uploaded
- Sync across web, app and mini-program
- Free essentials with optional Pro upgrades

Put a pocket-sized Swiss-army toolbox in your phone and get things done faster. Got feedback? Tell us in the app — we keep refining every tool.


Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## 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-tools-calculator-pdf/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)

### 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.

### 4.0.0 — 2025-12-01

版本 4.0.0 - 2025年11月20日
全新4.0：由你定义，每个人的专属工具箱！

本次更新是「工具匠」史上最具个性化的一次蜕变！我们彻底重塑了界面，并带来了更灵活的服务体系，让你手中的工具箱真正百分百符合你的习惯与期待。
【全新个性化布局与交互】

布局随心换：页面首次支持「流式」、「宫格」、「列表」、「双列」四种布局模式，可根据场景与喜好一键切换。

管理更自由：长按工具卡片即可自由拖拽排序或单独移除，更支持一键清空首页，打造你专属的工具门户。
【工具上新】

本期新增以下实用工具，欢迎体验：

2026年放假安排：一键查看明年节假日安排，提前规划你的美好时光。

今日老黄历：传统黄历随身带，宜忌事项一目了然。

佛历日历 & 道历日历：支持佛历与道历转换，尊重不同文化习俗。

灶码头：传统灶台吉日查询，延续民间智慧。

覆盖物计算器：轻松计算园艺覆盖物料用量，打造理想庭院。

碎石用量计算器：精准估算碎石铺设量，装修施工好帮手。

风寒计算器：根据温度与风速，实时感知体感温度，出行更安心。
【功能与体验升级】

专属身份：全新会员等级样式上线，彰显你的独特身份。
立即更新，体验一个更自由、更灵活、完全属于你的「工具匠」！

### 3.10.1 — 2025-10-16

大大优惠了会员价格，并优化了充值产品，以及其他的一些用户体验优化

## More apps by Chengdu Yunbyte Network Technology Co., Ltd.

- [分贝助手 I 工具匠](https://appshunter.io/ios/app/i/id6773603791)

All apps by Chengdu Yunbyte Network Technology Co., Ltd.: https://appshunter.io/developer/1804864993

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*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 2026-08-14.*