Comparison

3DXReaderDS 3Dビューア 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

3DXReaderDS 3Dビューア

Features
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株式会社シーセット製3Dビューア「3DTascalX」と「3DTascalX/Light」で保存した オリジナル拡張子ファイル(*.3dxds)をタブレットやスマートフォンで閲覧するための専用ビューアアプリになります。 以前より無料のビューアアプリとしてご好評頂いているWindows向けアプリ「3DXReader」の 機能を厳選、さらにタブレットやスマートフォンの利点を活かし、オリジナルの機能を追加したビューアアプリです。 お客様のご要望の声を詰め込んで「3DXReaderDS」として誕生しました。 回転、拡大、縮小といった基本的な機能に加え、テキストやチェックマークの追加、フリーハンドでの 自由記入など、紙の図面のように描き込む機能を追加。 タッチペンを使えばまるで鉛筆で紙に書き込むようにご使用頂けます。 ※ご使用には「3DTascalX」もしくは「3DTascalX/Light」にて専用の有料オプションのご契約が 必要となります。 詳細なお問い合わせ、ご要望は(株)シーセットまで。 https://www.3dtascal.com/ TEL 03-6261-0389

About

Unbend Flat Pattern Calculator

Features
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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

3DXReaderDS 3Dビューア4 screens
Unbend Flat Pattern Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: 3DXReaderDS 3Dビューア at none against Unbend Flat Pattern Calculator's 1. 3DXReaderDS 3Dビューア also leads on ads (none vs shown) and update cadence (every 4 days vs fortnightly). On price 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. Unbend Flat Pattern Calculator sells 1 one-off in-app purchase. 3DXReaderDS 3Dビューア asks for nothing beyond the download.

UpkeepUpdate frequency

3DXReaderDS 3Dビューア ships an update every 4 days, Unbend Flat Pattern Calculator fortnightly. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.

Scorecard4 real differences · 2 level
3DXReaderDS 3Dビューア versus Unbend Flat Pattern Calculator: the parameters behind the verdict, then further details
Parameter3DXReaderDS 3DビューアUnbend Flat Pattern Calculator
PriceFreeFree
Update frequencyEvery 4 days — betterFortnightly
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better16.4
Further details — not scored
Size47 MB57 MB
Age rating4+4+
Developer株式会社シーセット (C’set Co.,Ltd.)Omer Faruk BAGCI

In-app purchases

None

3DXReaderDS 3Dビューア

No in-app purchases

1 purchases

Unbend Flat Pattern Calculator

One-time1
  • Unbend Pro Unlock$14.99

Questions

Is 3DXReaderDS 3Dビューア free?
3DXReaderDS 3Dビューア 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 3DXReaderDS 3Dビューア or Unbend Flat Pattern Calculator have ads?
Unbend Flat Pattern Calculator shows ads; 3DXReaderDS 3Dビューア does not.
Which is updated more often, 3DXReaderDS 3Dビューア or Unbend Flat Pattern Calculator?
3DXReaderDS 3Dビューア ships an update every 4 days, and Unbend Flat Pattern Calculator fortnightly. Most recently, 3DXReaderDS 3Dビューア was updated on September 30, 2026 and Unbend Flat Pattern Calculator on October 2, 2026.

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