# PNChart

A simple and beautiful chart lib used in Piner and CoinsMan for iOS

Repository: https://github.com/kevinzhow/PNChart
Canonical: https://ross.abutalabs.com/products/pnchart
Language: Objective-C
License: MIT
License Family: permissive
Last push: 2018-07-02T12:43:03+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4683, "days_push": 2984, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 9645, forks 1737 (observed 2026-08-28T04:10:36.541902+00:00)

## What it is
PNChart is a simple and beautiful animated chart library for iOS, written in Objective-C with a Swift counterpart (PNChart-Swift). It supports line, bar, pie, and other chart types with smooth animations and customizable colors.

## Use cases
- draw animated line charts in an iOS app
- add bar charts and pie charts to an iPhone app
- visualize data with smooth animated charts in Swift or Objective-C
- show range-based colors on chart data points
- add a lightweight chart library via CocoaPods

## When to choose
- you need attractive animated charts in an iOS 7+ app
- you want a lightweight Objective-C chart library with a Swift version available
- you prefer simple CocoaPods integration without heavy dependencies

## When to avoid
- you need actively maintained charts with recent iOS features (last release was 2018)
- you target Android or cross-platform apps
- you need highly interactive or complex charting beyond basic line/bar/pie types

## Facets
- artifact type: library
- maturity: maintenance
- function: charts, animation, ui-components
- domain: data-visualization, mobile-development
- platform: -
- tags: objective-c, cocoapods, line-chart, bar-chart, pie-chart, animated-charts, ios, swift

## Member repositories
- kevinzhow/PNChart (main) score 23
- kevinzhow/PNChart-Swift (mirror) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:36.541902+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:21:20.063684+00:00, confidence not recorded.
  - readme: https://github.com/kevinzhow/PNChart (fetched 2026-08-28T04:10:36.541902+00:00, sha 0d2fb47d2513)
- Data as of 2026-08-30T08:39:29.467469+00:00.