ChartPrism vs Milestone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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/
Milestone
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Progress is easy to forget. Milestone makes it easy to remember. Capture what you're working on with photos, voice notes, and text. Everything is organized on a timeline, so months of slow progress become something you can actually see. CAPTURE IN THE MOMENT Open the app and the camera is ready. Take a photo while the work is in front of you, record a voice note while the details are fresh, or type a note instead. Each entry keeps the moment, the context, and the date together. The whole flow takes seconds, so documenting progress never gets in the way of making it. SEE YOUR PROGRESS Everything lands on a chronological timeline, counting up from the day your project started. Scroll from your first entry to today to see where you started, what changed, and how it all came together. Progress that's hard to notice day to day becomes obvious when you can see it in order. Keep as many projects as you have going. Each one has its own timeline and day count. PLAN WHAT'S NEXT Keep tasks alongside each project so the work ahead stays connected to the progress you've already made. Reorder tasks, check them off when they're done, and add due dates only when you need them. Tasks can include photos, voice notes, and text too, so they're more than just a checklist. Completed tasks stay organized by when you finished them and can be cleared whenever you no longer need them. UNDERSTAND MORE WITH ON-DEVICE AI Milestone uses on-device AI to transcribe voice notes and analyze photos for readable text and visual subjects. Search for what you said, what was written, or what appeared in a photo—all without uploading your private moments to a Milestone server. FIND IT AGAIN Search your notes to find the moment you can't quite place. Voice-note transcripts and photo text or visual labels are included, so search can find what was said and what appeared in a photo, not just what you typed. Flag important entries so they're easy to return to later. KEEP EVERYTHING TOGETHER Project photos get buried in your camera roll. Details disappear into messages or stay in your head. Milestone keeps the photo, the context, and the moment together in one place. FOR ANYTHING WORTH DOCUMENTING Personal goals. Creative work. Home improvements. School projects. Travel. Restorations. Anything that takes long enough that you'll want to look back on it. YOUR DATA, YOUR DEVICES There is no Milestone account and no Milestone server. Your entries stay on your device and sync across iPhone and iPad through your own iCloud. Turn iCloud off and Milestone still works on one device.
Screenshots
Verdict
The clearest difference is in-app purchases: Milestone at none against ChartPrism's 3. Milestone also leads on iOS requirement (18.0 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. Milestone asks for nothing beyond the download.
| Parameter | ChartPrism | Milestone |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 26.2 | 18.0 — better |
| Further details — not scored | ||
| Size | 48 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Life Utility Apps, LLC | Eric Fan |
In-app purchases
ChartPrism
- Monthly$8.991 Month
- Yearly$34.991 Year
- Lifetime Access$49.99
Milestone
No in-app purchases









