VaultXT vs Radix64
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
VaultXT
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VaultXT is a local editor for large text documents. It handles the text content of .txt, .md, .log, .csv, .json, .yaml, .yml, and .arb files. Edit large files in one continuous editor, use find and replace, and let autosave run after a pause in typing. Review and restore snapshots, organize documents in named, colored, nested folders with manual ordering, and create new drafts by splitting or merging documents. Format checks are available for JSON, ARB, YAML, and YML. They never block saving and may be skipped for large files. Imported files become local working copies, separate from the external originals, and you choose the destination when exporting. Editing works offline on your device. Free includes editing, 10 open documents, 10 documents in the Library, the 10 latest snapshots per document, splitting into up to 10 pieces, and merging up to 10 documents. Pro is a one-time purchase that expands these limits, with no subscription and no ads.
Radix64
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Radix64 turns text, photos, and files into Base64 ā and back ā 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 ā 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. ā WHAT MAKES RADIX64 DIFFERENT ā ⢠One screen, both directions Type or paste on either side and the other updates instantly ā 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. ā WHO IS RADIX64 FOR? ā ⢠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 ā PRICING ā 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 ā no subscription ā and adds batch file and photo conversion plus unlimited, searchable history. ā FEEDBACK ā 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 update cadence: VaultXT at fortnightly against Radix64's every 3 months. VaultXT also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. VaultXT sells 1 one-off in-app purchase and Radix64 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
VaultXT ships an update fortnightly, Radix64 every 3 months. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.
| Parameter | VaultXT | Radix64 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly ā better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod ā better | iPhone |
| Requires iOS | 15.0 ā better | 26.0 |
| Further details ā not scored | ||
| Size | 25 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | ONNELLAB | ę°ø å¼ |
In-app purchases
VaultXT
- VaultXT Pro$5.99
Radix64
- Radix64 Pro$4.99









