ConvertHub vs CalcKit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ConvertHub
This utility app converts various file types, including documents, videos, audio, and images. It also offers tools for compression, merging, cropping, and adjusting playback speed for media.
- File format conversion
- Video conversion and editing
- Audio conversion and speed adjustment
- Image format conversion
- File compression
- File merging
- Batch processing
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**ConvertHub: Any File & Format** is a professional file and media format conversion tool that supports multiple functions including file conversion, video conversion, audio conversion, and image conversion. It allows for easy conversion between various formats with simple operations, and also provides practical tools such as file compression, merging, cropping, and speed adjustment to help you quickly process various files and media content. Whether it's file processing for work or study, or video, audio, and image editing for daily life, it can handle it all with ease. **Core Functions:** **File Format Conversion:** Supports conversion between multiple file formats, making file use across different devices and platforms more convenient. **Video Format Conversion:** Supports conversion between multiple video formats, and also provides video cropping and video speed adjustment functions. **Audio Format Conversion:** Easily convert audio formats and supports adjusting audio playback speed. **Image Format Conversion:** Supports conversion between common image formats, maintaining high-definition image quality. **Practical Tools:** **File Compression:** Quickly reduce file size **File Merging and Stitching:** Integrate multiple files **Video Cropping:** Easily trim video clips **Video Speed Adjustment:** Freely control playback speed **Batch Processing:** Improve work efficiency Simple and intuitive interface, easy operation, one-click conversion. Suitable for office work, study, content creation, and daily document processing. -Payment will be charged to iTunes Account at confirmation of purchase. -Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period. -Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. -Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Privacy Policy: http://saxdev.com/file/privacy.html Terms of User:http://saxdev.com/file/terms.html If you have any questions, feel free to contact us at ai_factory@126.com
CalcKit
This app offers over 50 practical tools to solve everyday problems, from measuring distances with AR to scanning documents and performing complex calculations. It includes features for navigation, unit conversion, and even a scrolling text display.
- AR Distance Meter
- Document Scanning & OCR
- All-Purpose Calculator
- Unit Converter
- Floating Scrolling Text
- Decision Maker
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Have you ever had these awkward moments? You want to measure a table but can’t find a tape measure? You need to scan a document urgently but don’t have a scanner nearby? You see a foreign-language menu and have no idea how to read it? **CalcKit: Tip, Convert & Utils** puts more than 50 practical tools in your pocket. Whether for daily life, work, study, or outdoor travel, one phone is all it takes to solve all your troubles instantly. ### Core Features #### Smart Measurement & Location - **AR Distance Meter**: Uses augmented reality technology to accurately measure the length, height and area of objects, more convenient than a traditional tape measure. - **Level Meter**: A must-have for hanging pictures and installing furniture, with 0.1° high-precision calibration for a more refined life. - **Compass & Latitude-Longitude**: Identifies directions for outdoor adventures and locates your current position in real time. #### Document Scanning & OCR - **Text Extraction**: Recognizes text in images by taking a photo, supports Chinese, English and many other languages for easy copying. - **Network Speed Test**: Checks upload and download speeds to see if someone is stealing your network. #### Professional Calculation & Conversion - **All-Purpose Calculator**: Includes mortgage calculation, personal income tax calculation and salary calculation to meet various scenario needs. - **Unit Converter**: Covers exchange rates, length, area, weight, volume and more than 20 unit types, with fast conversion and clear results. #### Daily Life Assistant - **Floating Scrolling Text**: Turns your phone into a cool LED scrolling screen for airport pickups, fan support and events. - **Decision Maker**: Solves your indecision and takes the stress out of choosing. - **Image Conversion**: Converts photos to any format without restrictions. -Payment will be charged to iTunes Account at confirmation of purchase. -Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period. -Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Privacy Policy: https://aelaus.com/toolie/privacy.html Terms of User: https://aelaus.com/toolie/terms.html
Screenshots
Verdict
ConvertHub and CalcKit both sit at 4.7 stars, but that hides the real split: 100% of CalcKit's written reviews are positive against 50% of ConvertHub's. CalcKit also leads on ads (none vs shown). On price, rating, ratings volume and update cadence there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. ConvertHub sells 3 in-app purchases, starting at $19.99 per 7 days and CalcKit sells 3 in-app purchases, starting at $19.99 per 7 days. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for ConvertHub against 4.6 for CalcKit. Both are backed by a comparable volume of ratings — 125 and 102 respectively. Written reviews are what separate them: 50% of ConvertHub's written reviews are positive against 100% of CalcKit's.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | ConvertHub | CalcKit |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (125 ratings) — better | 4.6 (102 ratings) |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 125 — better | 102 |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 15 — better |
| Further details — not scored | ||
| Size | 205 MB | 124 MB |
| Age rating | 4+ | 4+ |
| Developer | 邵雄 李 | 麟浩 冯 |
Customer experience
ConvertHub
CalcKit
In-app purchases
ConvertHub
- Weekly Membership3 Days trial$19.997 Days
- Free Weekly Membership$19.997 Days
- Monthly Membership$39.991 Month
CalcKit
- WeekMember For Three Days Free3 Days trial$19.997 Days
- WeekMember$19.997 Days
- MonthMember$39.991 Month









