Format Conversion格式转换 vs Aperia
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Format Conversion格式转换
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Format Conversion - Universal Format King is a multifunctional and versatile format conversion tool. Support document conversion, document scanning, PDF image export, image format conversion, image size compression, image ratio adjustment, vertical and horizontal image stitching, audio format conversion, video audio extraction, mobile ringtone production, setting mobile ringtones, audio cropping, audio stitching, audio mixing and synthesis, etc. *Document processing -Document Conversion: Supports converting dozens of document formats into PDF format. -PDF to Word: Convert PDF to Word format for easy editing and modification. -PDF image export: Export PDF images, supporting page by page image, long image stitching, and GIF animated image export. -Document scanning: Referring to a physical scanner, it can quickly scan and automatically correct distorted images. It can be customized with cropping adjustments and supports black and white, grayscale, and filter processing. It also supports exporting PDFs or images for easy printing *Image processing -Image format conversion: Batch convert images to various formats, including JPG, PNG, JPEG, GIF, WebP, BMP, TIFF, TIFF, Tag, and ICO. -Image size compression: Batch high-definition compression of image size, reducing size without compromising image quality and minimizing storage space usage. -Image scale adjustment: Supports 9:16, 16:9, 1:1, 3:4, 4:3, 6:7, 21:9, 9:21 scale adjustment, and can also be customized. It can adapt or fill the screen, and can set background blur and background color. -Image stitching: Supports vertical and horizontal stitching, and can set borders, spacing, rounded corners, background color, text, and stickers, etc. *Audio processing -Audio format conversion: Supports multiple audio format conversions. -Video audio extraction: Extract audio from videos, editable. -Creating mobile ringtones: Create and set your favorite music as a personalized ringtone that supports multiple music platforms. Support audio splicing, audio mixing and synthesis, audio cropping, etc. -Audio cropping: Crop the audio duration according to your own needs. Regarding PRO subscription: The subscription price is 12 yuan per week, 28 yuan per month, 98 yuan per year, and 168 yuan for permanent one-time purchase. The price may vary depending on the marketing policies at that time. Weekly, monthly, and yearly subscriptions will automatically renew unless auto renewal is turned off at least 24 hours before the end of the current period. The account will be charged a renewal fee within 24 hours before the end of the current period, and the renewal fee subscription can be managed by the user, and automatic renewal can be turned off by transferring to the user's App Store account settings after purchase. User terms: http://privacypolicy.yayaxiaoqu.com.cn/formatconversion/user_agreement.html Privacy Policy: http://privacypolicy.yayaxiaoqu.com.cn/formatconversion/privacy_policy.html
Aperia
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Aperia converts supported images, PDFs, video, audio and text on your device. • Choose photos or files and see compatible output formats. • Convert images, create PDFs, export PDF pages and extract text. • Trim supported media, extract audio and create short GIFs. • Preview results, reopen local History and save or share your files. • Choose your interface language in Settings. No account is required. Conversion works locally and your files are not sent to Google or a conversion server. Photos uses iOS permission choices; Files grants access to selected items. Metadata removal is enabled by default for supported image conversions. Google AdMob banner ads on iPhone and iPad involve separate device, advertising and diagnostic data processing. Regional privacy choices are available when required. Ads need internet; file conversion does not. Available formats and tools depend on the input, device and operating system. Core features require iOS 15 or later; background removal requires iOS 17 or later. Try the built-in sample without importing personal files.
Screenshots
Verdict
The clearest difference is in-app purchases: Aperia at none against Format Conversion格式转换's 4. Aperia also leads on update cadence (weekly vs every 5 months). Format Conversion格式转换's advantage is ads (none vs shown). On price, device support and iOS requirement 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. Format Conversion格式转换 sells 4 in-app purchases, starting at $1.99 per 7 days. Aperia asks for nothing beyond the download.
Format Conversion格式转换 ships an update every 5 months, Aperia weekly. Both last shipped on October 16, 2026.
| Parameter | Format Conversion格式转换 | Aperia |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | 彦 唐 | Khaled ALmushali |
In-app purchases
Format Conversion格式转换
- PRO Weekly Subscription$1.997 Days
- PRO Monthly Subscription$3.991 Month
- PRO Yearly Subscription3 Days trial$14.991 Year
- Permanent PRO$24.99
Aperia
No in-app purchases





