Comparison

SunSim Building vs Marryflow 备婚助手

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

Marryflow 备婚助手

Features
Read full description

Marryflow 备婚助手 —— 从求婚那天起,把婚礼筹备安排得明明白白 从订下婚期到走上红毯,备婚路上的每一件琐事、每一笔开销、每一位宾客,Marryflow 都替你收进同一个清晰的空间。和伴侣一起规划,任务同步、账目透明、进度一目了然。 【总控台 · 一眼掌控全局】 大号倒计时数字提醒你距离婚礼还有几天,支持公历与农历双显示,婚期当天还有特别祝福。花费、任务进度、最近待办一屏呈现,备婚干货文章不定期更新,从选婚纱到定酒席,帮你少走弯路。 【待办清单 · 按你的婚期智能排期】 内置经典婚礼、旅行婚礼、简约婚礼等多套专业模板,一键导入完整任务与阶段划分。模板以标准备婚周期为基准,导入时自动按你的实际婚期等比排期,从"订酒店"到"试婚纱",每个阶段清清楚楚。支持自定义阶段、任务指派给伴侣或伴娘伴郎、备注提醒与里程碑时间线。 【物品清单 · 一件不落】 婚纱、喜糖、请帖、三金……分类管理、逐项勾选,进度一目了然。内置多种物品模板一键导入,支持自定义分类、数量管理与备注,再也不怕遗漏。 【记账 · 每分钱都有迹可循】 总预算与分类预算双层管理,超支即时提醒。智能预算分配可一键按行业比例把总预算拆分至婚宴、珠宝、策划等十六个分类,点选即可微调。账单支持付款人记录与凭证拍照上传,分类占比饼图与支出趋势图(日/周/月)让钱花在哪里一目了然,告别翻聊天记录对账。 【礼金簿 · 人情往来清清楚楚】 谁的份子钱、随了多少、哪天收的,独立礼金簿一一记下,按男方女方自动汇总,答谢回礼心里有数。 【宾客与座位表 · 省心不漏人】 男方、女方、共同亲友分组管理,RSVP 状态实时追踪,确认率与到场人数自动统计,方便定桌与备礼。可视化座位表还原真实会场——舞台、T 台、圆桌自动排版,单列、双列、混合三种布局随心切换,排好一键导出文本发给酒店。 【婚车管理 · 车队不慌乱】 主婚车、跟车分类录入,车牌、司机、电话、乘坐人、上下车地点一次记清。一键生成分享链接发给车队司机,婚礼当天不手忙脚乱。 【两个人的备婚空间】 凭六位邀请码邀请伴侣加入同一个婚礼空间,任务分工、账本、宾客名单实时同步。还可以邀请伴娘伴郎、家人作为协作者,姓名电话即可登记,无需注册。Premium 权益自动与伴侣共享——一人解锁,两人同享。 【Premium · 一次买断,终身使用】 免费版已覆盖核心备婚流程。升级 Premium 解锁无限任务、物品、账单与宾客数量,全部清单模板,图片附件上传,以及账单、礼金、待办、物品、宾客五类数据 CSV 导出。买断制,无续费,无广告,权益与伴侣共享。 【为什么选择 Marryflow】 专为中国婚礼场景设计——懂三金、懂改口费、懂男女方分工、懂酒席随礼、懂婚车排场。奶油米白底色配低饱和马卡龙色系,看一整天也不累眼。支持农历婚期显示。隐私优先,你的婚礼数据只属于你和伴侣。 祝你们新婚快乐。 服务条款: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SunSim Building4 screens
Marryflow 备婚助手4 screens

Verdict

The call

The clearest difference is update cadence: Marryflow 备婚助手 at weekly against SunSim Building's every 3 weeks. SunSim Building's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.4). On price, ads and in-app purchases 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 and Marryflow 备婚助手 sells 2 in-app purchases, starting at $3.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SunSim Building ships an update every 3 weeks, Marryflow 备婚助手 weekly. The most recent releases landed on November 4, 2026 and November 9, 2026 respectively.

Scorecard3 real differences · 7 level
SunSim Building versus Marryflow 备婚助手: the parameters behind the verdict, then further details
ParameterSunSim BuildingMarryflow 备婚助手
PriceFreeFree
Rating4.7 (3 ratings) — better—
Positive reviews60.9% of reviews—
Number of ratings3 — better—
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better16.4
Further details — not scored
Size36 MB200 MB
Age rating4+4+
Developer立娜 王思瑞 周

In-app purchases

3 purchases

SunSim Building

Subscriptions2
  • Monthly Subscription$4.991 Month
  • Annual Subscription$12.991 Year
One-time1
  • Permanent membership$24.99
2 purchases

Marryflow 备婚助手

Subscriptions1
  • Marryflow 年度订阅$3.991 Year
One-time1
  • Marryflow 永久会员$3.99

Questions

Is SunSim Building free?
SunSim Building is free to download, with in-app purchases available.
Is Marryflow 备婚助手 free?
Marryflow 备婚助手 is free to download, with in-app purchases available.
Do SunSim Building or Marryflow 备婚助手 have ads?
Neither SunSim Building nor Marryflow 备婚助手 shows ads.
Which is updated more often, SunSim Building or Marryflow 备婚助手?
SunSim Building ships an update every 3 weeks, and Marryflow 备婚助手 weekly. Most recently, SunSim Building was updated on November 4, 2026 and Marryflow 备婚助手 on November 9, 2026.

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