Krypton vs Kryptos Tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Krypton
Securely encrypt and protect your personal documents and folders with strong encryption. This app acts like a digital vault, keeping your sensitive files safe from unauthorized access on your devices and cloud storage.
- Strong encryption for documents and folders
- Acts as a secure digital vault
- Supports various file types (pictures, movies, PDFs, etc.)
- Cloud synchronization with iCloud Drive and Dropbox
- Available on iOS and macOS
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Protecting your personal and confidential information since 2009, Krypton is the first, simplest and most reliable App on the iOS Store to strongly encrypt entire documents and folders. Now also available on the macOS App Store. Your stuff is secure from prying eyes no matter where you are in the world. Metaphorically, Krypton keeps your encrypted items in a special vault, with each item contained in their own deposit box; to gain access to an encrypted item the vault must be open and the passcode key must be used to unlock the deposit box before you can discern the plaintext contents inside. In iOS the vault may be open or closed, while on macOS the vault opens upon Log In. Because the unit of encryption is an entire document or folder, Krypton is not a password manager in the traditional sense, although you can maintain a document of all your passwords that you encrypt between uses. Krypton can encrypt any type of document, including but not limited to: • Pictures and movies from your photo album. • Email messages from your mailbox. • Songs, PDFs, movies, Zip files, word processing documents, text files, images, program source code or any other object that you can download over the network or from your personal web server. • Anything on the iOS pasteboard. • Any document other Apps are willing to Share, such as Pages, Numbers and Keynote. • iCloud Drive and Dropbox files for easy cloud synchronization. Krypton uses strong encryption on each item. This has several ramifications: • If your passcode is strong enough to withstand a brute force attack, no one is going to see your stuff. • If you forget your passcode, no one can recover your stuff for you! But only that one document is lost, not your entire collection of items. • Your stuff is secure even if your iDevice or Mac is stolen, or iCloud Drive or Dropbox account is compromised. Visit http://www.bigcatos.com to learn more.
Kryptos Tools
This app offers a comprehensive suite of classic cryptography tools, including Vigenère and Transposition ciphers, to help users explore and potentially solve complex puzzles. It consolidates features from previous versions and provides detailed information on famous unsolved codes.
- Classic cipher implementations
- Vigenère cipher
- Transposition Matrix
- Detailed puzzle information
- Sixteen classic ciphers
- Future cipher additions
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Kryptos Tools combines the best features of the previous two apps (Kryptos Tools - Vigenère and Kryptos Tools - Transposition) along with additional details, documents and photos consolidated into one great app. Kryptos Tools includes classic ciphers, like the Vigenère cipher, that was used to encrypt the first two sections of Kryptos (K1 and K2). It also includes the Transposition Matrix which provides a visual implementation of the Transposition cipher for solving Kryptos section K3. Kryptos Tools now contains sixteen (16) classic ciphers: * Affine * Atbash * Beaufort (plus Autokey variant) * Bifid * Caesar * Columnar Transposition * Four-square * Gronsfeld (plus Autokey variant) * Hill * One-Time Pad * Playfair * ROT13 (Rotate-13) * Substitution * Transposition Matrix * Trifid * Vigenère (plus Autokey variant) Additional ciphers and utilities will be added in future releases. Detailed solutions and information about these sections of the puzzle are also detailed within. Kryptos is a sculpture by the American artist Jim Sanborn located on the grounds of the Central Intelligence Agency (CIA) in Langley, Virginia. Since the dedication of Kryptos on November 3, 1990, the first three sections have been successfully decrypted. However, the fourth section remains one of the most famous unsolved codes in the world. Are you going to be the one to solve this mystery?
Screenshots
Verdict
The clearest difference is price: Kryptos Tools at Free against Krypton's $2.99. Kryptos Tools also leads on update cadence (every 3 weeks vs every 10 months) and ratings volume (7 vs 2). Krypton's advantage is rating (5.0 vs 4.6) and device support (4 vs 2). On 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
Kryptos Tools is free to download; Krypton costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Krypton holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 2 and 7 respectively.
Krypton ships an update every 10 months, Kryptos Tools every 3 weeks. The most recent releases landed on September 22, 2026 and September 17, 2026 respectively.
| Parameter | Krypton | Kryptos Tools |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (2 ratings) — better | 4.6 (7 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 2 | 7 — better |
| Update frequency | Every 10 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 110 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Steve Lidie | Jeffrey Williams |
Customer experience
Krypton
Kryptos Tools
In-app purchases
Krypton
No in-app purchases
Kryptos Tools
No in-app purchases









