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Best SwiftUI Charts Libraries in 2026

Honest comparison of every viable SwiftUI charting option — Apple\'s native Swift Charts, DGCharts, Lightweight Charts, and when to use each.

Last updated: 2026-05-16 8 min read By Ahmed Gagan, iOS Engineer
Quick Answer

The best SwiftUI charts library for almost every iOS app in 2026 is Apple\'s native Swift Charts (iOS 16+). It\'s free, accessible, theme-aware, animates automatically, and supports line/bar/area/scatter/pie/heatmap. Reach for third-party charts (DGCharts, Lightweight Charts) only when you need iOS 15 support, candlestick / OHLC financial charts, or hyper-custom rendering.

Default pick
Apple Swift Charts (iOS 16+)
For finance / OHLC
Lightweight Charts
For iOS 15 fallback
DGCharts
Avoid
Old SwiftUICharts (deprecated)

A Swift Charts Line Chart in 10 Lines

For comparison, here's a complete time-series line chart with Apple's Swift Charts:

RevenueChart.swift
import Charts
import SwiftUI

struct RevenueChart: View {
  let data: [(date: Date, revenue: Double)]

  var body: some View {
    Chart(data, id: \.date) { point in
      LineMark(
        x: .value("Date", point.date),
        y: .value("Revenue", point.revenue)
      )
      .interpolationMethod(.catmullRom)
    }
    .chartXAxis { AxisMarks(values: .stride(by: .day, count: 7)) }
    .chartYAxis { AxisMarks(format: .currency(code: "USD")) }
  }
}

Chart-ready boilerplate.

The Swift Kit ships Swift Charts examples themed via the design system — revenue, growth, habit progress, AI usage.

Get The Swift Kit — $99

The 6 Charts Libraries

Ranked by what most apps should actually use. The native option wins for ~95% of use cases.

  1. 1

    Swift Charts (Apple)

    Use This First

    Native iOS 16+ charting. Line, bar, area, scatter, pie, heatmap. Declarative API matching SwiftUI patterns. Free, no dependency.

    Pros
    • Native
    • Theme-aware
    • Accessibility built-in
    • Animations free
    Cons
    • iOS 16+ only
    • No candlestick
  2. 2

    Lightweight Charts (TradingView)

    Open-source financial charting. Candlestick, OHLC, volume, crosshairs, indicators. Built for trading apps. WebView-based but smooth.

    Pros
    • Best-in-class financial
    • Production-grade
    Cons
    • WebView dependency
    • Heavier
  3. 3

    DGCharts (DanielGindi)

    Successor to ChartsiOS. Mature, iOS 9+, every chart type. Use when you need iOS 15 / 16 fallback or specific advanced features.

    Pros
    • iOS 9+ support
    • Battle-tested
    Cons
    • Imperative API
    • Heavier than native
  4. 4

    SwiftUICharts (Will Dale)

    Open-source SwiftUI-native chart kit. Active before Swift Charts shipped. Now mostly superseded by Apple's framework.

    Cons
    • Maintenance has slowed
  5. 5

    Charts (deprecated)

    The original ChartsiOS / Charts library. Deprecated — use DGCharts instead.

    Cons
    • No longer maintained
  6. 6

    Plotly iOS Wrapper

    WebView wrapper around Plotly.js. Useful only if you already use Plotly in a web product and want consistent rendering.

    Cons
    • WebView dependency
    • Slow

Frequently Asked Questions

What's the best SwiftUI charts library in 2026?
Apple's native Swift Charts (iOS 16+) is the right default for almost every iOS app in 2026. It handles line, bar, area, scatter, and pie charts with native accessibility, animations, and theming. Use a third-party library only if you need iOS 15 support, advanced financial chart types (candlestick, OHLC), or hyper-custom rendering.
Is Apple's Swift Charts free?
Yes. Swift Charts is part of the iOS SDK — no package install, no license fee. Import Charts and use the Chart view.
Does Swift Charts support real-time updating data?
Yes. Charts re-render when bound to @State / @Observable data. Animations interpolate automatically. For high-frequency updates (>30Hz), debounce updates to avoid jank.
What about candlestick / OHLC charts for finance apps?
Swift Charts doesn't ship candlestick natively (as of iOS 18). Use BarMark with the [low, high] range and overlay another BarMark for [open, close]. For production financial charts with crosshairs and gestures, consider Lightweight Charts (open-source from TradingView).
Can Swift Charts render large datasets (10k+ points)?
Yes, with downsampling. Aggregate to ~500 visible points; Swift Charts handles that comfortably. For 100k+ raw points without aggregation, expect frame drops — preprocess server-side or in a background task.
How does The Swift Kit use charts?
The Swift Kit ships Swift Charts examples for: subscription revenue, user growth, habit-tracker progress, and AI-token usage. Each chart is themed via the design system, so colors and surface styles flow from your DesignSystem.swift.

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