Comparison

SunSim Building vs riceflow

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

Head to head
About

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.

Highlights
  • 3D modeling from floor plans or maps
  • Solar trajectory simulation
  • Sunlight duration statistics
  • 3D heatmap display
  • Window view simulation
  • Report generation (PDF, PNG, CSV)
Features
Read full description

【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

About

riceflow

Features
Read full description

A minimalist item and wish management tool: record lifespan and maintenance plans, track wish lists, and apply knowledge templates to items with just one click. Simple and easy-to-use, helping you better manage daily items.

Screenshots

SunSim Building4 screens
riceflow3 screens

Verdict

The call

The clearest difference is in-app purchases: riceflow at none against SunSim Building's 3. riceflow also leads on update cadence (weekly vs every 3 weeks). SunSim Building's advantage is ads (none vs shown). On price, device support and iOS requirement 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. SunSim Building sells 3 in-app purchases, starting at $4.99 per month. riceflow asks for nothing beyond the download.

UpkeepUpdate frequency

SunSim Building ships an update every 3 weeks, riceflow weekly. The most recent releases landed on September 23, 2026 and September 16, 2026 respectively.

Scorecard3 real differences · 7 level
SunSim Building versus riceflow: the parameters behind the verdict, then further details
ParameterSunSim Buildingriceflow
PriceFreeFree
Rating4.7 (3 ratings) — better—
Positive reviews63.6% of reviews—
Number of ratings3 — better—
Update frequencyEvery 3 weeksWeekly — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better14.0
Further details — not scored
Size36 MB96 MB
Age rating4+4+
Developer立娜 王Thanh Hoang Van

In-app purchases

3 purchases

SunSim Building

Subscriptions2
  • Monthly Subscription$4.991 Month
  • Annual Subscription$12.991 Year
One-time1
  • Permanent membership$24.99
None

riceflow

No in-app purchases

Questions

Is SunSim Building free?
SunSim Building is free to download, with in-app purchases available.
Is riceflow free?
riceflow is free to download, with no in-app purchases.
Do SunSim Building or riceflow have ads?
riceflow shows ads; SunSim Building does not.
Which is updated more often, SunSim Building or riceflow?
SunSim Building ships an update every 3 weeks, and riceflow weekly. Most recently, SunSim Building was updated on September 23, 2026 and riceflow on September 16, 2026.

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