SunSim Building vs EV Station Load Sizing
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SunSim Building
This tool helps analyze home sun exposure using 3D modeling and solar trajectory simulation. It visualizes sunlight data, calculates duration, and generates reports for property evaluation. Features include floor plan and map modeling, unit layout simulation, and window view analysis.
- 3D modeling from floor plans or maps
- Solar trajectory simulation
- Sunlight duration statistics
- 3D heatmap display
- Window view simulation
- Report generation (PDF, PNG, CSV)
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【Sunlight Calculator - Home Sun Exposure Analysis Tool】 Sunlight Calculator is a professional home sun exposure analysis tool that helps you objectively evaluate lighting conditions when choosing a property. Through 3D modeling and solar trajectory simulation, it provides visualized sunlight data for your reference. Core Features 【Multiple Modeling Methods】 Floor Plan Modeling: Import residential community floor plans to quickly build a 3D model Map Modeling: Select the community location on a map to automatically obtain geographic coordinates Building Spacing Modeling: Enter building spacing and height parameters to simulate shading conditions Unit Layout Simulation: Simulate sunlight distribution and shadow changes at different times of day on the floor plan Model Editing: Adjust floor height, building orientation, and other parameters Save & Share: Models can be saved locally or shared with family and friends 【Professional Sun Exposure Analysis】 Solar Trajectory Simulation: Display the sun's path at any date and time throughout the year Sunlight Duration Statistics: Calculate cumulative daily sunlight hours at each location Time-Period Analysis: View lighting conditions in the morning, afternoon, and throughout the full day Winter/Summer Comparison: Compare lighting differences on key dates such as the winter and summer solstices Sampling Point Analysis: Select specific locations to view detailed sunlight data Dynamic Playback: Play full-day sunlight change animations to intuitively understand lighting patterns 【3D Heatmap Display】 Color Grading: Red–orange–yellow–green–blue gradient representing lighting from excellent to poor Layer-by-Layer Display: View sunlight distribution for each floor individually Multi-Building Comparison: Display heatmaps for multiple buildings simultaneously for easy side-by-side comparison Precision Settings: Adjust calculation precision to balance speed and accuracy Data Labeling: Display sunlight duration values directly on the 3D model 【Window View Simulation】 Perspective Switching: Simulate the field of view looking outward from different floors Obstruction Analysis: Show the degree to which buildings ahead obstruct the view Landscape Assessment: Determine whether greenery, water features, and other scenic resources are visible Floor Comparison: Compare view differences across different floors Distance Measurement: Calculate the actual distance from a window to the building ahead Height Annotation: Display the relationship between line-of-sight height and the height of obstructing structures 【Report Generation & Export】 Single-Floor Report: Generate a detailed sun exposure analysis report for an individual floor Batch Reports: Generate comparison reports for multiple buildings or floors with a single tap Multiple Formats: Supports export as PDF, PNG image, or CSV data spreadsheet Custom Templates: Choose from different report styles and content modules Print Optimization: PDFs are automatically paginated to fit standard A4 paper Sunlight Calculator is dedicated to providing users with an objective, professional sun exposure analysis tool helping you gather more data-backed insights during the home selection process and make smarter. Download now and start your sunlight analysis. Auto-Renewable Subscription: - Monthly: auto-renews every month - Yearly: auto-renews every year - Lifetime: one-time purchase - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period - Manage subscriptions in Settings → Apple ID → Subscriptions Terms of Use: https://jiahe365.top/sunshine-web/legal/membership_agreement_en.html Privacy Policy: https://jiahe365.top/sunshine-web/legal/privacy_en.html
EV Station Load Sizing
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The electrical designer's sizing tool for commercial EV charging sites — chargers to transformer in one honest screen. Add charger groups (7.4, 11, 22 kW AC · 50, 150, 350 kW DC fast, or any custom rating), apply a diversity factor you control, pick the supply (230 V 1φ · 400 V 3φ · 480 V 3φ, adjustable power factor) and read the results instantly: connected load, expected demand in kW and kVA, feeder current with the ×1.25 continuous-load design value (NEC 625.41), and the next standard transformer size from the ANSI/IEEE C57.12.00 ladder at ≤ 80% loading. Planning a capped connection? Set the site power limit and see the equal-split power each charger gets under load management (ALM/EVEMS, NEC 625.42). PRO • Unlimited chargers and groups (free sizes up to 2 devices) • Site-cap load sharing with per-charger power • Transformer sizing: required kVA, standard unit, loading verdict • Save site assessments to history • Clean one-page PDF reports with the full assumptions list — ready for the project folder Built for the field: big controls, huge results, Outdoor Bright mode for direct sunlight. Everything stays on your phone — fully offline, no account, no tracking. Diversity is an assumption: results are planning estimates and require engineered project approval. ——— Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hdappstudio.com/evstationload/privacy/
Screenshots
Verdict
The clearest difference is update cadence: SunSim Building at every 3 weeks against EV Station Load Sizing's every 2 months. SunSim Building also leads on iOS requirement (13.0 vs 16.0). 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. SunSim Building sells 3 in-app purchases, starting at $4.99 per month and EV Station Load Sizing sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
SunSim Building ships an update every 3 weeks, EV Station Load Sizing every 2 months. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.
| Parameter | SunSim Building | EV Station Load Sizing |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (3 ratings) — better | — |
| Positive reviews | 60.9% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 36 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | 立娜 王 | HD YAPIMCILIK VE TEKNOLOJI ITHALAT IHRACAT TICARET LIMITED SIRKETI |
In-app purchases
SunSim Building
- Monthly Subscription$4.991 Month
- Annual Subscription$12.991 Year
- Permanent membership$24.99
EV Station Load Sizing
- EV Station Pro — Monthly$2.991 Month
- EV Station Pro — Yearly$14.991 Year
- EV Station Pro — Lifetime$29.99
Questions
Is SunSim Building free?
Is EV Station Load Sizing free?
Do SunSim Building or EV Station Load Sizing have ads?
Which is updated more often, SunSim Building or EV Station Load Sizing?
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