PDF Converter vs Radix64
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Converter
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The professional PDF conversion editor that is loved by the majority of users can easily realize the conversion from PDF to word\ppt\excel. Are you still struggling with how to quickly edit documents? Are you still troubled by the fact that you can't leave the document in front of the computer? PDF Converter - Document, help you easily realize the editing and conversion of pdf on your mobile phone! Function: [Office study] The conversion effect is clear and tidy, and it is consistent with the original file format, which is convenient for you to edit and organize the data, which can save you a lot of time when dealing with PDF files. [Multiple formats] Common formats supported include Word, Excel, PPT, TXT, HTML and many other formats, which can meet the processing needs of different user groups for different documents. 【One-click conversion】Support one-click convenient conversion, stable performance and professional file format processing system to meet users' high-quality conversion needs! 【Automatic subscription member instructions】 1. Service name: continuous monthly membership (30 days), continuous annual membership (365 days); 2. Price: $5.99/month for continuous monthly product, $29.99/year for continuous annual product; 3. If you have purchased an account of an automatic subscription member, the fee will be deducted from your iTunes account 24 hours after the end of the monthly subscription period, and the subscription period will be extended after the deduction is successful; 4. To cancel the subscription, please manually open the iPhone's "Settings" --> enter "iTunes Store and App Store" --> click "Apple ID", select "View App ID", enter the "Account Settings" page, and turn off automatic renewal order. If you do not close your subscription at least 24 hours before the end of the subscription period, you agree to continue to authorize and the subscription will automatically renew; http://bhunm.cn/doc/PDFayhxy.html (User Agreement) http://bhunm.cn/doc/PDFayszc.html (Privacy Policy) http://bhunm.cn/doc/PDFaxfhy.html (renewing membership) http://bhunm.cn/doc/PDFvip.html (automatic renewal membership)
Radix64
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Radix64 turns text, photos, and files into Base64 — and back — entirely on your iPhone, with no upload and no account. It's built for developers who need a data URI for CSS or HTML, anyone decoding a token, or someone who just needs a quick, clean Base64 encode or decode without hunting through a cluttered web tool. Type or paste on either side and watch the other update instantly — encoding and decoding share one screen, so there's no mode to pick first. Import a photo or file to get its Base64 (or a ready-to-use data: URI), or paste Base64 back in to reconstruct and share the original file. — WHAT MAKES RADIX64 DIFFERENT — • One screen, both directions Type or paste on either side and the other updates instantly — there's no mode to pick first. • Standard and URL-safe Switch variants and choose whether to keep padding, so the output matches what you're pasting it into. • Data URI in one tap Wrap the result as a data: URI that's ready for CSS, HTML, and email. • Photos and files, not just text Import a photo or file to get its Base64, or paste Base64 back in to reconstruct and share the original file. • Recent history Your recent conversions stay within reach. • Nothing leaves your iPhone Every conversion runs on device, with no upload, no account, and no ads. — WHO IS RADIX64 FOR? — • Developers who need a data URI for CSS or HTML • Anyone decoding a token and checking what's inside • People who want a quick encode or decode without a cluttered web tool • Anyone who would rather not paste sensitive data into a website — PRICING — Included: live two-way text and Base64 conversion, standard and URL-safe variants with or without padding, one-tap Data URI wrapping, encoding photos and files to Base64 and decoding them back into a file, and recent conversion history. Radix64 Pro is a one-time in-app purchase — no subscription — and adds batch file and photo conversion plus unlimited, searchable history. — FEEDBACK — Made by a small indie team. Email obeliskclubclub@gmail.com with feedback, bug reports, or feature requests. Learn more: obelisk.club/base64converter Terms of Use (EULA): https://obelisk.club/base64converter/terms
Screenshots
Verdict
The clearest difference is iOS requirement: PDF Converter at 11.0 against Radix64's 26.0. On price, update cadence, ads and in-app purchases 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. PDF Converter sells 3 in-app purchases, starting at $3.99 per 7 days and Radix64 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | PDF Converter | Radix64 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 5 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | 伟 罗 | 永 张 |
In-app purchases
PDF Converter
- Subscribe for one week$3.997 Days
- Subscribe for one month$5.991 Month
- Subscribe for one year$19.991 Year
Radix64
- Radix64 Pro$4.99









