ChartPrism vs AppSpark

Turn raw numbers into beautiful, publication-ready charts right on your iPhone and iPad. ChartPrism is a fast, fully on-device chart maker — no account, no sign-up, and everything works offline. Build 41 chart types across 8 families: COMPARISON — weigh values side by side Bar, Grouped Bar, Stacked Bar, Horizontal Bar, Pictorial Bar, Range Bar, Waterfall, Radar, and Gauge. TIME SERIES — follow change over time Line, Step Line, Area, Stacked Area, Theme River, and Calendar Heatmap. DISTRIBUTION — see how a whole breaks down Pie, Donut, Rose, Funnel, and Histogram. RELATIONSHIP — reveal correlation and density Scatter, Bubble, Animated Scatter, Heatmap, and Parallel Coordinates. STATISTICAL — summarize spread and ranges Candlestick, Box Plot, Error Bars, and Violin. HIERARCHY — break down part-to-whole structure Treemap, Nested Treemap, Sunburst, Tree, and Icicle. FLOW — trace connections and movement Sankey, Network, and Chord. GEOGRAPHIC — map your data by region World Choropleth, US States, Europe, and Geo Scatter. MAKE IT YOURS Style every chart with 400 built-in color themes spanning 10 moods — warm, cool, earthy, pastel, bold, muted, vintage, nature, monochrome, and jewel. Star your favorites for one-tap access, then fine-tune individual data points, titles, legends, axes, and styling until it looks exactly right. GET DATA IN FAST Import a CSV file, paste straight from the clipboard, or type values by hand. The editor adapts to your data shape — including OHLC, box-plot stats, matrices, hierarchies, flows, and map coordinates. SHARE AND KEEP Export crisp PNG or PDF images, send them through the share sheet, and save every chart to a searchable library. Turn on optional iCloud sync to carry your work across devices. PRIVATE BY DESIGN Charts render on your device and the app works completely offline — no account, no uploads. Lock the app behind Face ID whenever you like. Start free and create a chart a day. ChartPrism Pro unlocks the full chart library, every theme, and unlimited saves. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Every good app starts as a half-formed thought in the shower. AppSpark catches it before it's gone. AppSpark is a fast, focused idea catcher for indie makers — app ideas, feature ideas, book and Etsy ideas, the lot. Get it out of your head in seconds, then work out what's actually worth building. CATCH IT ANYWHERE - Fire off an idea with Siri, a Lock Screen or Home Screen widget, or straight from your Apple Watch — you don't even have to open the app. - Tag what it is: new app, app feature, Mac port, Watch companion, book, Book → App, Book → Etsy, market opportunity, or bug fix. TRIAGE THE WINNERS - Everything lands in one inbox. Sort the keepers from the noise and move ideas along a simple pipeline: Spark → Queued → Green-lit. - Add research and notes as an idea firms up. - AppSpark resurfaces ideas that are going stale, so the good ones don't quietly die at the bottom of a list. READY TO BUILD - Green-light an idea and it's ready to flow straight into AppBlueprint to plan and build. AppSpark works perfectly on its own, too — use only the parts you want. FREE AppSpark is now free, with every feature included. No paywall, no subscription, no catch. Your data stays yours — we don't collect it.