Keepad vs ChartPrism
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Keepad
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Keepad turns your iPhone or iPad into a wireless keyboard, touchpad, macropad, and MIDI controller for your computer. Create custom layouts with buttons for shortcuts, macros, mouse actions, MIDI notes, MIDI CC controls, and more. Nearly every button can be customized, including its label, color, function, modifiers, and behavior. Use layers to build different control surfaces for different apps, workflows, or machines. With the optional Beecon desktop app, Keepad can automatically switch layers based on the active app on your computer. Keepad requires a compatible custom Bluetooth dongle, available separately with a one-time purchase.
ChartPrism
Create publication-ready charts from your data on iPhone and iPad. Offers 41 chart types and 400 themes, with offline functionality and no account required. Export as PNG or PDF.
- 41 chart types
- 400 color themes
- Offline functionality
- CSV import
- PNG/PDF export
- iCloud sync
- App lock
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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/
Screenshots
Verdict
The clearest difference is in-app purchases: Keepad at none against ChartPrism's 3. Keepad also leads on iOS requirement (18.6 vs 26.2). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. ChartPrism sells 3 in-app purchases, starting at $8.99 per month. Keepad asks for nothing beyond the download.
| Parameter | Keepad | ChartPrism |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Monthly | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.6 — better | 26.2 |
| Further details — not scored | ||
| Size | 18 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Willbotic, LLC | Life Utility Apps, LLC |
In-app purchases
Keepad
No in-app purchases
ChartPrism
- Monthly$8.991 Month
- Yearly$34.991 Year
- Lifetime Access$49.99





