Comparison

钢易通 vs Unbend Flat Pattern Calculator

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

Head to head
About

钢易通

Features
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钢易通(gangyi.com)是国内领先的金属加工B2B电商平台。专注非标金属零件加工、机械行业钣金加工等。平台独有保护隐私方案,杜绝骚扰;海量真实订单,业内专业审图,在线轻松报价,高效促进交易。 客服电话:0571-88533072

About

Unbend Flat Pattern Calculator

Features
Read full description

Unbend is a sheet metal calculator built for the shop floor, not the office. Type a dimension and the technical drawing redraws live, so you always see exactly which measurement you are editing. BENDING • Bend allowance, bend deduction and flat blank length • Single bend, multi-bend profiles, U channel, Z profile, hem and joggle • K-factor resolved from material and forming method, with a built-in R/T table • Set your own K-factor per material with the custom table (Pro) FLAT PATTERN DEVELOPMENT • Cone, truncated cone, cylinder, truncated cylinder and segmented elbow • Full ordinate table for marking out by hand • Pattern view with zoom and clear line language: solid for cut, dashed for bend BUILT FOR FABRICATORS • Fraction keypad with true stacked fractions, in inches or millimeters • Works completely offline, nothing is sent anywhere • Save jobs and return to them later • Available in 15 languages EXPORT • DXF for CNC, plasma and laser cutting (Pro) • True 1:1 PDF templates with a print calibration ruler (Pro) • Tiled PDF for patterns larger than the page (Pro) • Ordinates as CSV, or share the pattern as an image FAIR PRICING Every calculation is free and unlimited, forever. One single payment unlocks DXF export, 1:1 and tiled PDF templates, unlimited saved jobs and the custom K-factor table. No subscription, nothing renews, and the unlock stays with your store account. Terms of Use: https://looplab.app/apps/unbend/terms-of-service/, https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://looplab.app/apps/unbend/privacy-policy

Screenshots

钢易通4 screens
Unbend Flat Pattern Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: 钢易通 at none against Unbend Flat Pattern Calculator's 1. 钢易通 also leads on ads (none vs shown) and iOS requirement (9.0 vs 16.4). On price, update cadence 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. Unbend Flat Pattern Calculator sells 1 one-off in-app purchase. 钢易通 asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 26, 2026 and October 19, 2026 respectively.

Scorecard3 real differences · 3 level
钢易通 versus Unbend Flat Pattern Calculator: the parameters behind the verdict, then further details
Parameter钢易通Unbend Flat Pattern Calculator
PriceFreeFree
Update frequencyFortnightlyFortnightly
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPod — betteriPhone
Requires iOS9.0 — better16.4
Further details — not scored
Size110 MB60 MB
Age rating4+4+
Developer杭州钢易科技有限公司Omer Faruk BAGCI

In-app purchases

None

钢易通

No in-app purchases

1 purchases

Unbend Flat Pattern Calculator

One-time1
  • Unbend Pro Unlock$14.99

Questions

Is 钢易通 free?
钢易通 is free to download, with no in-app purchases.
Is Unbend Flat Pattern Calculator free?
Unbend Flat Pattern Calculator is free to download, with in-app purchases available.
Do 钢易通 or Unbend Flat Pattern Calculator have ads?
Unbend Flat Pattern Calculator shows ads; 钢易通 does not.
Which is updated more often, 钢易通 or Unbend Flat Pattern Calculator?
钢易通 ships an update fortnightly, and Unbend Flat Pattern Calculator fortnightly. Most recently, 钢易通 was updated on October 26, 2026 and Unbend Flat Pattern Calculator on October 19, 2026.

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