Comparison

Steel Profiles Handbook‌ vs 智能计算器

Q: Is Steel Profiles Handbook free?

Steel Profiles Handbook is free to download, with no in-app purchases.

Q: Do Steel Profiles Handbook or 智能计算器 have ads?

Steel Profiles Handbook shows ads; 智能计算器 does not.

Q: Which is updated more often, Steel Profiles Handbook or 智能计算器?

Steel Profiles Handbook ships an update every 30 months, and 智能计算器 every 5 days. Most recently, Steel Profiles Handbook was updated on November 3, 2026 and 智能计算器 on November 4, 2026.

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

Head to head

Steel Profiles Handbook‌

Steel Section Tables & Specs

单位换算、汇率换算、房贷计算、个人所得税计算、建工计算

Free

📊 Productivity

No ratingsView app →

About

Steel Profiles Handbook‌

Features

Read full description

Working in steel structure engineering? Quickly access specifications, dimensions and unit weights of steel & section steels wherever you go. This app covers dozens of section steel types. All key parameters shown in tables comply with current Chinese national and industrial standards. Tap values inside tables to open a handy calculation panel for instant computations. Cross-section diagrams are available for every section steel. Native Apple app built with SwiftUI. Lightweight, fast and supports Dark Mode. Send your feedback via App Store reviews or the contacts below: Weibo: @结构设计 App (Follow for a chance to win a free redemption code) Email: lrtjqn@icloud.com Website: https://www.luckybianbian.top

About

智能计算器

Features

Read full description

智能计算器是一款集各种单位换算、工程计算、汇率、房贷和税率计算为一体的多功能计算机，整体简约清晰，便于操作，算力强大，高效快速。是用户生活、工作和学习中的得力小帮手。关于会员订阅确认购买后将从苹果账户扣除相应的费用；会员套餐为：周月季和永久自动续订：周月季为自动续订，除非在当前周期结束前 24 小时取消自动续订，否则会自动续期。自动续订将在当期结束前 24 小时内收取对应周期的续订费用。用户协议：https://kdocs.cn/l/ckP9J5RYue5e 隐私协议：https://kdocs.cn/l/cpbz5rCPE7iO

Screenshots

Steel Profiles Handbook‌4 screens

智能计算器3 screens

Verdict

The call

The clearest difference is in-app purchases: Steel Profiles Handbook‌ at none against 智能计算器's 4. 智能计算器's advantage is ads (none vs shown) and update cadence (every 5 days vs every 30 months). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 智能计算器 sells 4 in-app purchases, starting at $0.99 per month. Steel Profiles Handbook‌ asks for nothing beyond the download.

UpkeepUpdate frequency

Steel Profiles Handbook‌ ships an update every 30 months, 智能计算器 every 5 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 2 level

Steel Profiles Handbook‌ versus 智能计算器: the parameters behind the verdict, then further details
Parameter	Steel Profiles Handbook‌	智能计算器
Price	Free	Free
Update frequency	Every 30 months	Every 5 days — better
Ads	Yes	No — better
In-app purchases	No — better	Yes
Devices	iPhone, iPad	iPhone, iPod
Requires iOS	26.0	13.0 — better
Further details — not scored
Size	10 MB	16 MB
Age rating	4+	4+
Developer	疆边	Hebei jiudao network technology co., ltd

In-app purchases

None

Steel Profiles Handbook‌

No in-app purchases

4 purchases

智能计算器

Subscriptions3

月会员$0.991 Month
周会员$0.997 Days
季会员$2.993 Months

One-time1

永久会员$7.99

Questions

Is Steel Profiles Handbook‌ free?

Steel Profiles Handbook‌ is free to download, with no in-app purchases.

Is 智能计算器 free?

智能计算器 is free to download, with in-app purchases available.

Do Steel Profiles Handbook‌ or 智能计算器 have ads?

Steel Profiles Handbook‌ shows ads; 智能计算器 does not.

Which is updated more often, Steel Profiles Handbook‌ or 智能计算器?

Steel Profiles Handbook‌ ships an update every 30 months, and 智能计算器 every 5 days. Most recently, Steel Profiles Handbook‌ was updated on November 3, 2026 and 智能计算器 on November 4, 2026.