Kryptos Tools vs HelvetiKit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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?
HelvetiKit
A fast, on-device toolbox for developers, offering QR code generation and scanning, color conversions, JSON formatting, JWT decoding, and various text manipulation tools. It prioritizes speed and privacy with an intuitive interface for everyday development tasks.
- QR code generation and scanning
- Color format conversion (HEX, RGB, HSL)
- JSON pretty-printing, minifying, and validation
- JWT decoding
- Text case conversion
- UUID generation
- Hashing (MD5, SHA-1/256/512)
- Base64 / URL encoding/decoding
- Timestamp conversion
- Regex testing and replacement
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25 developer utilities in one focused toolbox. HelvetiKit brings code, text, conversions, generators, and network diagnostics to iPhone, iPhone Duo, and iPad. Find tools by name or keyword, pin your favorites, and keep your input while switching tools during a session. SMART PASTE Use the system Paste button to recognize copied content and open a matching tool with your input ready. Recognition runs on your device. CODE AND TEXT - Format, minify, validate, sort, and convert JSON to YAML. - Decode JWT headers, payloads, and claims. Inspect expiry; signatures are not verified. - Test regular expressions with flags, capture groups, highlighting, and replacement. - Compare text line by line and highlight changed characters with Text Diff. - Count characters, words, lines, and bytes with Text Inspector. - Convert CSV to JSON and back with delimiter detection and table previews. - Sort, deduplicate, trim, quote, and join text with Line Tools. - Build and inspect Unix file permissions with Chmod. ENCODE AND HASH - Encode and decode Base64, including URL-safe and wrapped input. - Encode and decode URLs and escape or unescape strings. - Calculate text and file hashes, HMAC, and compare checksums. CONVERT AND GENERATE - Convert HEX, RGB, and HSL colors and check WCAG contrast ratios. - Convert large numbers between binary, octal, decimal, and hexadecimal. - Convert Unix timestamps and dates; follow a live Unix clock. - Change text case and inspect Cron schedules. - Generate UUID v4 and v7, passwords, and Lorem Ipsum. QR AND NETWORK TOOLS - Generate QR codes with selectable error correction, share images, and scan QR codes and barcodes with the camera or a photo. - Query DNS records using a choice of DNS-over-HTTPS resolvers. - View public IP information and local interface addresses. - Measure HTTP request latency with a timing breakdown. - Calculate IPv4 and IPv6 subnet details. A WORKSPACE THAT FITS Return to recent tools from Home. Use syntax-colored JSON and YAML, symbol input shortcuts, sample inputs, and regex presets. Choose your appearance and clear session data or recent tools in Settings. Compact navigation keeps tools close at hand. Wider layouts show the library beside your workspace and place input alongside results when space allows. Supports light and dark appearances, larger text, English, and Simplified Chinese. PRIVACY-MINDED BY DESIGN Local tools process input on your device. Recent tool input stays in memory during the app session. Network tools contact the selected resolver, lookup service, or host only when you run them. Camera and photo access are optional QR features. No separate app account is required. TRY IT, THEN GO PRO Try 10 tool runs for free. An optional one-time HelvetiKit Pro purchase unlocks unlimited runs. Restore Purchase is available in the Pro sheet.
Screenshots
Verdict
The clearest difference is rating: HelvetiKit at 5.0 against Kryptos Tools's 4.5. Kryptos Tools's advantage is in-app purchases (none vs 1) and ratings volume (8 vs 1). On price, update cadence, ads and device support 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. HelvetiKit sells 1 one-off in-app purchase. Kryptos Tools asks for nothing beyond the download.
HelvetiKit holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Kryptos Tools has 8 ratings behind it against 1, so its average is the more settled of the two.
Kryptos Tools ships an update monthly, HelvetiKit every 6 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | Kryptos Tools | HelvetiKit |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (8 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 8 — better | 1 |
| Update frequency | Monthly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.6 | 18.5 — better |
| Further details — not scored | ||
| Size | 36 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Jeffrey Williams | 阳 张 |
Customer experience
Kryptos Tools
HelvetiKit
In-app purchases
Kryptos Tools
No in-app purchases
HelvetiKit
- Pro User$0.99









