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.
钢易通
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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
Unbend Flat Pattern Calculator
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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
Verdict
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
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.
Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 26, 2026 and October 19, 2026 respectively.
| Parameter | 钢易通 | Unbend Flat Pattern Calculator |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Fortnightly |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 110 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | 杭州钢易科技有限公司 | Omer Faruk BAGCI |
In-app purchases
钢易通
No in-app purchases
Unbend Flat Pattern Calculator
- Unbend Pro Unlock$14.99
Questions
Is 钢易通 free?
Is Unbend Flat Pattern Calculator free?
Do 钢易通 or Unbend Flat Pattern Calculator have ads?
Which is updated more often, 钢易通 or Unbend Flat Pattern Calculator?
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