iDeveloper vs Dozecal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iDeveloper
Read full descriptionHide full description
iDeveloper is an offline-first developer workstation for iOS and macOS. One native app for coding helpers, converters, and lookups. No account required. On-device tools, offline cheatsheets, workflow memory, plus widgets, Live Activity, Share Extension, Control Center, Siri, Shortcuts, Spotlight, and deep links. Why iDeveloper - On-device first: format, encode, hash, regex, color, and most conversions run locally - Offline handbook: about 14 topics and about 420 bilingual entries - Workflow memory: favorites, history, snippets, send-to-tool, and share delivery - Native surface: widgets, Live Activity, Share Extension, Control Center, Siri, Shortcuts, Spotlight - Privacy by design: no third-party ads or analytics SDKs, no forced sign-in; network tools only when you start them 190-plus tools for daily development Format: JSON, XML, YAML, TOML, CSV, SQL, HTML, CSS, JavaScript, GraphQL, INI, Properties, JSONPath. Encode: Base64, Base64 image and Data URI, URL encoding, Unicode, HTML entities, Hex, JWT, Base32, Gzip, Punycode. Crypto: MD5 and SHA hashes, HMAC, AES, password tools, TOTP, CRC32, Base58, PEM, JWT signing, SSH fingerprint. Time: Unix timestamp, timezones, Cron, duration, date diff, workdays, relative time, ICS, RRULE. Regex: test, escape, extract, split, filter, count, Glob, wildcard-to-regex, regex cheatsheet. Color: HEX, RGB, HSL, WCAG contrast, gradients, named colors, mix. Numbers: base convert, file size, unit convert. Network: HTTP request that sends only when you tap send, cURL convert, raw messages, HAR, URL parse and build, headers, Cookie, CORS, CSP, status codes, MIME, CIDR, IPv6, Wi-Fi QR. IP lookup only when you start it. Text: case styles, sort and dedupe, word count, Diff, find and replace, Markdown, slugify, JSON Diff, list compare, extract URLs and emails, strip HTML. Generators: UUID, ULID, NanoID, Mongo ObjectId, Snowflake, random bytes, QR generate and scan on iOS, Focus timer with Dynamic Island. Convert: JSON to Swift, TypeScript, Go, Kotlin, Python; XML and JSON; Markdown and HTML; QueryString; Plist; OpenAPI; Schema; XPath; SQL INSERT. DevOps: SemVer, dotenv, env diff, EditorConfig, gitignore, Git URL, Dockerfile, Kubernetes YAML, PKCE, OAuth URL. Apple: app icon sizes, Bundle ID, screen points, SF Symbols, Entitlements, Info.plist, ATS exceptions, APNs payload, Privacy Manifest, AASA helpers. Offline handbook Curated bilingual handbook in Chinese and English, with Traditional Chinese via conversion. Topics include HTTP, headers, MIME, Git, Docker, Kubernetes, Linux, Cron, SQL, Regex, SSH, npm, JWT, and TLS. Home shows a daily tip; widgets can show daily cheatsheet content. Workflow that connects tools - Favorites, recent tools, history, snippets, search, and Spotlight - Share Extension: send text from Notes, Safari, Xcode, and more into a tool - Suggested / Recent tool picker; send to tool for the next step Native Apple capabilities - Widgets: daily cheatsheet, quick tools, timestamp, favorites - Focus Live Activity on Lock Screen and Dynamic Island - Control Center, Siri, Shortcuts, Home Screen quick actions, and ideveloper deep links Privacy, appearance, and platforms - No ads, no forced registration; optional tips via Apple In-App Purchase - Themes, accent colors, text size, alternate app icons - Languages: English, Simplified Chinese, Traditional Chinese - iOS 17 or later, with macOS support; sensitive tools limit auto history by default Who it is for Mobile, backend, frontend, QA, and DevOps developers who need JSON, tokens, regex, or command notes quickly. Getting started: finish onboarding, favorite what you use, add a Quick Tools widget, then share JSON or cURL into iDeveloper and open the best Suggested tool. A lasting home-screen workstation: tools nearby, handbook offline, workflow connected, privacy respected. Thanks for choosing iDeveloper.
Dozecal
This educational calculator promotes the use of Base Twelve (duodecimal) in math and science. It offers standard mathematical functions in both duodecimal and decimal modes, with automatic conversion between them. It utilizes Reverse Polish Notation (RPN) for calculations.
- Duodecimal and Decimal modes
- Automatic mode conversion
- RPN (Reverse Polish Notation) input
- Standard math functions
- Trigonometric operations (degrees)
- Educational tool for Base Twelve
Read full descriptionHide full description
Dozecal is an educational RPN* calculator to promote the use of Base Twelve in math and science. The usual math functions are available in both DUODECIMAL and DECIMAL modes. Conversion is automatically made when switching from one mode to the other one. Trigonometric operations uses DEGREE as unit of measure. For more information about Base 12, please visit the Dozenal Society of America. * RPN : the Dozecalc calculator uses the Reverse Polish Notation (RPN). This notation seems complex but has many advantages over algebraic notation and is more intuitive once you have understood the idea. The calculator has a stack and any operation that requires two numbers is using the bottom stack layers (X and Y). Key ENTER to push the stack up and separate one number from the next. To perform arithmetic, key in the first number, press ENTER to separate the first number from the second, then key in the second number and then select and operator such as the numerical functions +, -, * or /. The result appears immediately after you press the numerical function key. The operator is keyed in only after both operands are in the stack. Example: calculate 3 + 4 Key sequence: 3 ENTER 4 + Result: 7 The result of any operation may itself become an operand. You do not need to press enter again to use the result. The "7" is already entered. Example: add 2 to the previous result Key sequence: 2 + Result: 9 Example: calculate 5 * (3 + 4) Key sequence: 3 ENTER 4 + 5 * Alternate key sequence: 5 ENTER 3 ENTER 4 + * Disclaimer: results and precision may occasionally be incorrect. Should you report them at johan@unumdesignum.com, and the author will be happy to fix !
Screenshots
Verdict
The clearest difference is price: Dozecal at Free against iDeveloper's $0.29. Dozecal also leads on iOS requirement (12.0 vs 17.0). iDeveloper's advantage is update cadence (weekly vs every 10 months). On ads, in-app purchases 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
Dozecal is free to download; iDeveloper costs $0.29 up front. Neither carries in-app purchases, so what you see is what you pay.
iDeveloper ships an update weekly, Dozecal every 10 months. Both last shipped on October 29, 2026.
| Parameter | iDeveloper | Dozecal |
|---|---|---|
| Price | $0.29 | Free — better |
| Rating | — | 4.2 (5 ratings) — better |
| Positive reviews | — | 75.0% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Weekly — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | 天从 何 | Johan Kovacs |
In-app purchases
iDeveloper
No in-app purchases
Dozecal
No in-app purchases









