Fast Chart vs JT File Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fast Chart
Effortlessly create stunning charts and insightful dashboards from your phone. This app transforms raw data into compelling visual stories with a rich library of chart types and a drag-and-drop dashboard builder.
- Create stunning charts with ease
- Rich chart library (Pie, Bar, Line, Sankey, etc.)
- Deep chart customization
- Build comprehensive dashboards
- Drag-and-drop interface for dashboards
- Professional dashboard templates
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Effortlessly create beautiful charts and insightful dashboards right from your phone. Fast Chart is the all-in-one tool that makes professional data visualization simple and accessible for everyone. Whether you need a quick chart for a report or a comprehensive dashboard to track your goals, our intuitive platform is designed for clarity and power, helping you turn raw data into a compelling visual story. 1. CREATE STUNNING CHARTS WITH EASE This is the heart of your data storytelling. Our app simplifies the process of creating professional, single-chart visuals. Rich Chart Library: Choose from over a dozen types, including Pie, Bar, Line, Radar, and even advanced charts like Sankey and Funnel to perfectly match your data. Deep Customization: Easily modify colors, fonts, and labels to align with your brand or personal style. The "what you see is what you get" editor ensures your vision comes to life perfectly. Instant Creation: Simply import your data or enter it manually, and watch as Fast Chart instantly transforms your numbers into a polished, presentation-ready graphic. 2. BUILD COMPREHENSIVE DASHBOARDS Go one step further by weaving your charts into a complete overview. The Dashboard maker is your canvas for telling the bigger picture. Drag-and-Drop Interface: Intuitively combine multiple charts, text boxes, and progress widgets. Arranging your layout is as simple as moving cards around on a screen. Tell a Complete Story: Perfect for business reports, performance tracking, or academic summaries. Present all your key data points in a single, shareable, and easy-to-understand view. Professional Templates: Use our beautifully designed background cards to give your dashboards a polished, professional look with zero design effort. YOUR VISUALS, FOR ANY PURPOSE Fast Chart is a versatile tool used across countless fields for its power and simplicity: Business Reports & Financial Summaries Academic Thesis & Research Illustrations Government & Public Service Infographics Student Performance & Grade Statistics E-commerce Sales & Product Analysis Personal Fitness & Goal Tracking Records And so much more! Full List of Supported Charts & Widgets: (Charts): Pie, Line, Area, Bar, Column, Stacked Bar, Histogram, Radar, Scatter, Funnel, Butterfly, Sankey, Combination (Line + Bar). (Dashboard Widgets): Venn Diagrams, KPI Indicators, Progress Bars (Line, Circle, Wave), Pyramids, Rating Widgets, Structure Diagrams, Customizable Cards. [Terms of Use] https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ [Privacy Policy] https://www.privacypolicies.com/live/c9f1fdb4-1f3f-46bc-8e7e-5e1c05444926
JT File Viewer
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JT File Viewer is a native Apple app for opening and reviewing JT (.jt) files, built with Swift for engineering, manufacturing, supplier, and product review. Open .jt files on macOS, iPhone, iPad, and Apple Vision Pro. Inspect tessellated 3D geometry, browse product structure, review model statistics, and use focused viewer tools without uploading files. Key features: - Open JT files locally - View tessellated engineering models in a native 3D viewport - Browse product structure and select parts - Switch between solid, transparent, and wire display modes - Use Exploded View to separate assembly components - Use Cross Section View to inspect internal model areas, with Flip Kept Side to view from the other side - Export tessellated models as binary STL, binary glTF GLB, and USDZ, USDC, or USDA - Capture screenshots with pre-save annotations, editing, and watermarks - Record 3D viewport review videos with optional synced microphone narration and watermarks - Review models in a spatial visionOS experience - No ads, tracking, or data collection. Common questions: - Is JT File Viewer a CAD editor? No. JT File Viewer is built for read-only JT review, not CAD authoring. It does not edit CAD models, replace PLM systems, or import STEP, IGES, STL, OBJ, or native CAD formats. STL, GLB, and USD-family export use tessellated JT viewer geometry. - What JT versions does JT File Viewer target? JT is standardized internationally as ISO 14306 for lightweight 3D visualization and product data exchange. JT File Viewer targets JT V8, V9, and V10 files for tessellated geometry review. Compatibility can vary by exporter, model content, compression, metadata, and proprietary extensions. - Are files uploaded to a server? No. Files are opened on device. JT File Viewer does not require cloud conversion, account sign-in, or network upload to view your JT model. File access follows Apple sandbox rules. Who it is for: - Engineers reviewing JT visualization files - Manufacturing and quality teams checking shared model data - Sales, procurement, and supplier-facing teams that need quick model visibility - Apple-platform teams that want a native macOS, iOS, and visionOS JT viewer Pricing & Access - Free: Open and view JT files locally, browse model structure, inspect model statistics, and use the core viewer workflow. - Subscription: Unlock all current JT Pro tools while active. One subscription covers supported Apple platforms, including macOS, iPhone, iPad, and Apple Vision Pro. - Individual Unlocks: Choose one-time purchases for specific Pro tools if you only need selected features. - Payment is charged to your App Store account. - Subscriptions renew unless auto-renew is turned off at least 24 hours before the current period ends. - You can manage or cancel subscriptions in your App Store account settings. Privacy & Purchase Terms - Files are opened on device. JT File Viewer does not upload JT files to a cloud conversion service for viewing. - JT File Viewer does not require account sign-in to open local JT files. - App Store purchases, subscriptions, refunds, and restores are handled by Apple through StoreKit and your App Store account. - Privacy Policy: https://apps.h53d.xyz/apps/jt-file-viewer/policy.html - Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - JT and related marks are the property of Siemens Industry Software Inc. or its affiliates. JT File Viewer is an independent app and is not affiliated with, endorsed by, or sponsored by Siemens. JT File Viewer gives Apple users a focused way to open, inspect, communicate, and export JT model data while keeping the workflow local and viewer-oriented. Need help or have feedback? Reach out to danjian42@gmail.com. Or visit https://apps.h53d.xyz/apps/jt-file-viewer/support.html.
Screenshots
Verdict
The clearest difference is update cadence: Fast Chart at every 10 days against JT File Viewer's every 3 weeks. Fast Chart also leads on iOS requirement (13.0 vs 26.0). On price, ads, in-app purchases 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. Fast Chart sells 3 in-app purchases, starting at $2.99 per month and JT File Viewer sells 10 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Fast Chart ships an update every 10 days, JT File Viewer every 3 weeks. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.
| Parameter | Fast Chart | JT File Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (92 ratings) — better | — |
| Positive reviews | 80.4% of reviews | — |
| Number of ratings | 92 — better | — |
| Update frequency | Every 10 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, Mac, Vision Pro |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 45 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | 朝勇 陈 | Shanghai Fuwei Information Technology Co., Ltd. |
Bugs and requests
Fast Chart
Reported bugs
11 issues- Recent update removed chart visibility from the main page
- Confirm button is hidden behind status bar on iPhone 11
- App crashes when adding data to pie charts
- Lagging/frame drops during use
- Keyboard display area shows blank space after exiting and re-entering the app
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- Difficulty handling large and discontinuous numbers
- Value numbers have to stay below the graph on certain charts
- Purchased lifetime membership is no longer valid
- Cannot recover purchases, purchase is invalid
- Unable to subscribe to full features
- App crashes when trying to add information to a pie chart
Requested features
22 requests- Add map functionality
- Add Sankey diagrams
- Allow multiple pie charts on one panel for comparison
- Add ability to adjust vertical axis spacing in line charts
- Display chart data titles in a clickable format to hide/show specific lines
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- Add dark mode
- Import data from CSV, JSON, XML files
- Add a save as table feature
- Allow sharing of tables
- Add a feature to display average value in line charts
- Add options for chart differentiation in black and white printing (e.g., shadows, hatching)
- Add an iPad version
- Add iCloud sync
- Add ability to change chart type on a template without re-entering data
- Add ability to export as MP4 video with adjustable duration and speed
- Add a reset data button
- Add ability to modify chart shape outlines
- Add ability to change font and size for titles
- Add Venn Diagrams
- Add a computer version with cloud saving
- Add ability to import Excel tables directly
- Add ability to overlay charts (e.g., bar and line charts)
JT File Viewer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Fast Chart
- Unlock the APP (Mothly)$2.991 Month
- Unlock the APP (Yearly)$12.991 Year
- Unlock the APP (Lifetime)$17.99
JT File Viewer
- Pro Weekly3 Days trial$2.997 Days
- Pro Monthly$6.991 Month
- Pro Quarterly$19.993 Months
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- Pro Annual$29.991 Year
- USDZ Export$2.99
- USDC Export$2.99
- USDA Export$2.99
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- Screenshot$3.99
- Screen Recording$6.99
- Pro Lifetime$49.99









