Comparison

ChartStudio vs GreyStep

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ChartStudio

Create a wide range of professional charts and diagrams with dynamic data syncing and high-quality exports. Customize every aspect of your visualizations for business intelligence, academic research, and professional reports. Seamlessly sync your work across multiple Apple devices.

Highlights
  • Versatile chart creation (bar, line, pie, Sankey, etc.)
  • High-quality export options
  • Dynamic data syncing with live updates
  • Interactive elements (tooltips, drilldowns)
  • Advanced customization options
  • Cross-platform sync across Apple devices
Features
Read full description

Create a variety of charts—bar charts, line charts, pie charts, radar charts, Sankey diagrams, bubble charts, heatmaps, and more—along with dynamic data syncing, real-time updates, and high-quality exports. Key Features • Versatile Chart Creation: Design a wide range of charts including bar charts, line charts, pie charts, radar charts, Sankey diagrams, bubble charts, heatmaps, tree maps, calendars, funnel charts, box plots, 3D charts, and many more. Regular updates bring new chart types to meet evolving needs. • High-Quality Export: Export charts in high resolution for print, reports, and presentations. • Dynamic Data Updates: Automatically sync charts with live data from CSV, Excel, ensuring your visualizations stay accurate and up-to-date. • Interactive Elements: Add tooltips, drilldowns, and clickable features for a more engaging and interactive experience. • Advanced Customization: Customize every aspect of your charts—colors, labels, fonts, layouts—to match your branding or personal preferences. • Cross-Platform Sync: Seamlessly sync across iPhone, iPad, Mac, and VisionPro, ensuring a consistent workflow across devices. Perfect For • Business Intelligence: Visualize KPIs, track financial performance, and create insightful reports to drive data-driven decisions. • Academic Research: Present research data and statistical findings with clear, professional charts. • Professional Reports: Design eye-catching visuals for annual reports, business proposals, and presentations. • Marketing Campaigns: Create stunning visuals for advertising, social media, and product launches. • Educational Materials: Craft engaging charts for lessons, classroom presentations, and projects. • Nonprofit Organizations: Communicate your organization’s impact through visualized data for fundraising, donor contributions, and campaign results. • Financial Analysis: Visualize investment portfolios, market trends, and financial reports for budgeting and decision-making. • Event Planning: Organize schedules, guest lists, and resource management with clear, easy-to-read charts. Supported Chart Types • Bar Charts: Basic bar charts, waterfall charts, negative bar charts, and more. • Line Charts: Basic line charts, smoothed lines, stacked lines, gradient areas, and more. • Pie Charts: Simple pie charts, rounded corner pies, and rose charts. • Radar Charts: Basic radar charts, circular radar charts, and more. • Sankey Charts: Flow charts and flow diagrams. • Bubble Charts: Basic bubble charts, bubble gradient charts. • Heatmap Charts: Basic heatmaps for visualizing data density. • Tree Charts: Basic tree charts and radial tree charts. • Calendar Charts: Calendar visualizations to track date-related data. • Funnel Charts: Funnel flow diagrams for visualizing processes. • Box Plot Charts: Basic box plots and velocity charts. • Parallel Coordinates: Charts to visualize relationships between multiple variables. • 3D Charts: 3D bar charts, 3D bubble charts, and more. • Other Charts: Word clouds, mind maps, Markdown mind maps, and more. Why Choose ChartStudio? • Seamless Integration & Export: Import data easily from CSV, Excel, and export high-quality charts for use in reports, presentations, and marketing materials. • Cross-Device Compatibility: Work across all Apple devices—iPhone, iPad, Mac, and VisionPro—with complete synchronization for a consistent experience. • Regular Updates: Continuous improvements with new chart types, features, and integrations. Stay ahead with cutting-edge tools and functionality. Terms of Use:https://www.apple.com/legal/internet-services/itunes/dev/stdeula

About

GreyStep

Features
Read full description

Converts an image from the photo library to a 4-value monochrome image.

Screenshots

ChartStudio4 screens
GreyStep1 screens

Verdict

The call

The clearest difference is in-app purchases: GreyStep at none against ChartStudio's 5. GreyStep also leads on update cadence (every 6 days vs monthly). ChartStudio's advantage is device support (5 vs 2) and iOS requirement (14.0 vs 16.6). On price and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ChartStudio sells 5 in-app purchases, starting at $1.99 per month. GreyStep asks for nothing beyond the download.

UpkeepUpdate frequency

ChartStudio ships an update monthly, GreyStep every 6 days. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
ChartStudio versus GreyStep: the parameters behind the verdict, then further details
ParameterChartStudioGreyStep
PriceFreeFree
Rating2.7 (3 ratings) — better—
Positive reviews44.4% of reviews—
Number of ratings3 — better—
Update frequencyMonthlyEvery 6 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPod, Mac, Vision Pro — betteriPhone, iPad
Requires iOS14.0 — better16.6
Further details — not scored
Size100 MB11 MB
Age rating4+4+
Developer辉章 何Yukihiro Shioya

In-app purchases

5 purchases

ChartStudio

Subscriptions3
  • ChartStudio Pro Monthly1 Month trial$1.991 Month
  • ChartStudio Pro Quarterly3 Months trial$5.993 Months
  • ChartStudio Pro Annual1 Year trial$19.991 Year
One-time2
  • ConsumableDailyPlan$0.29
  • ChartStudio LifeTime Member$29.99
None

GreyStep

No in-app purchases

Questions

Is ChartStudio free?
ChartStudio is free to download, with in-app purchases available.
Is GreyStep free?
GreyStep is free to download, with no in-app purchases.
Do ChartStudio or GreyStep have ads?
Neither ChartStudio nor GreyStep shows ads.
Which is updated more often, ChartStudio or GreyStep?
ChartStudio ships an update monthly, and GreyStep every 6 days. Most recently, ChartStudio was updated on October 2, 2026 and GreyStep on October 8, 2026.

Other comparisons