CandleKit: a native SwiftUI candlestick chart (no WebView)

Lalana Chamika — Sat, 03 Oct 2026 15:57:05 GMT

I built CandleKit because every "native" candlestick chart I found for SwiftUI was either a WebView wrapping some JS charting library, or a basic line chart pretending to be a candlestick chart. I wanted something that actually feels like part of iOS: momentum scrolling, pinch-to-zoom anchored under your fingers, a long-press crosshair with haptics, and live tick updates that don't redraw the whole thing.

Here it is rendering live BTC data with SMA/EMA overlays:

The chart options sheet, where you pick overlays and manage saved layouts:

And the style presets - hollow candles, a color-blind-safe palette, and a couple of others - are built in:

It also has momentum scrolling, pinch-to-zoom anchored under your fingers, a long-press crosshair with haptics, infinite history loading, drawing tools, a manual price-axis drag, and a Codable ChartLayout so a trader's setup survives a relaunch. Dynamic Type, dark mode, and VoiceOver Audio Graphs are in too.

It's MIT-licensed, iOS 17+, and installs via Swift Package Manager. Status is 0.1, pre-release: the engine (CandleKitCore) has full unit test coverage, the SwiftUI rendering layer hasn't been profiled on device or snapshot-tested yet. Repo's here: https://github.com/LalanaChami/CandleKit — feedback, issues, and PRs are very welcome.