# NibbleCalc: Dev Calculator — Programmer, color & dev tools

> Programmer, color & dev tools (iPhone/iPad app by LiChuan Lin.)

- Source: https://appshunter.io/ios/app/nibblecalc-dev-calculator/id6765700593 (this page in markdown: same URL + `.md`)
- Developer: [LiChuan Lin](https://appshunter.io/developer/1895785594)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 9 MB
- Languages: American English, Dutch, French (France), German (Germany), Indonesian, Italian, Japanese, Korean, Polish, Brazilian Portuguese and 7 more
- Released: 2026-05-07
- Data updated: 2026-08-02
- User reviews in markdown: https://appshunter.io/ios/app/nibblecalc-dev-calculator/id6765700593/reviews.md

## What is NibbleCalc?

NibbleCalc is the all-in-one calculator for developers, designers, and power users — a clean, fast calculator plus a full toolbox, all offline.

FOUR-FUNCTION & SCIENTIFIC
• Beautiful standard calculator with calculation history
• Full scientific panel in landscape (trig, logs, powers, roots, factorial)

PROGRAMMER
• HEX / DEC / OCT / BIN, live side by side
• Bit widths from 8-bit up to 127-bit
• Flip individual bits in an interactive bit grid
• AND, OR, XOR, NOT and shifts

COLOR TOOLS
• Convert HEX, RGB, HSV, HSL and CMYK
• Copy ready-to-use CSS, SwiftUI and UIKit code
• Color Scan: pick real-world colors with your camera
• WCAG contrast-ratio checker

DEVELOPER TOOLS
• JWT decoder — header, payload and claims, fully offline
• MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes
• UUID v4 generator
• Base64 encode / decode (URL-safe too)

DATE & TIME
• Date calculator — add, subtract, days between
• Unix timestamp converter — ISO 8601, RFC 2822, UTC and local

MADE TO ENJOY
• Three themes: Dark, Vibrant, Minimal
• iPhone & iPad, portrait and landscape
• 17 languages
• Works entirely offline — your data never leaves your device

NibbleCalc Pro (one-time purchase)
• Remove ads
• Unlock Dev Tools, Color Scan, 127-bit width and premium themes

Download NibbleCalc and carry a whole developer toolbox in one calculator.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |



## Version history (last 3 releases)

### 1.2 — 2026-07-23

What's new in 1.2

• New: In-app language — pick any of 17 languages or follow your system, applied instantly with no restart.
• Improved: Full translations across all 17 languages.
• New: The Programmer bit grid now labels each row by bit position (0–15, 16–31, …), so it's easier to see exactly where each bit sits.
• NibbleCalc Pro now unlocks Dev Tools, Color Scan, 128-bit width and the premium themes.
• Various fixes and performance refinements.

Thanks for using NibbleCalc! We'd love to hear your feedback.

### 1.01 — 2026-05-17

Added Unix Timestamp tools
• Supports real-time UTC / Local Time / ISO8601 / RFC2822 conversion
• Quickly view and convert timestamp formats
• Ideal for backend development, API testing, and time data processing

Added Live Camera Color Picker
• Instantly detect colors using the camera
• Get HEX / RGB color values in real time
• Supports RGB / HSV / HSL / CMYK color conversion
• Ideal for UI design, photography, and color matching

### 1.0 — 2026-05-07

No release notes.

## More apps by LiChuan Lin

- [Time Sense : Reflex Challenge](https://appshunter.io/ios/app/time-sense-reflex-challenge/id6764448820)
- [Puzzle Fusion: Photo Jigsaw](https://appshunter.io/ios/app/puzzle-fusion-photo-jigsaw/id6767262824)
- [PingInsight](https://appshunter.io/ios/app/pinginsight/id6775749214)
- [NetUsageLog](https://appshunter.io/ios/app/netusagelog/id6778200432)
- [WobbleParty](https://appshunter.io/ios/app/wobbleparty/id6780137390)

All apps by LiChuan Lin: https://appshunter.io/developer/1895785594

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-02.*