Comparison

PlanInspect CAD DWG PDF Viewer vs CoDrawing

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

Head to head
About

PlanInspect CAD DWG PDF Viewer

View, measure, and annotate CAD drawings and PDF plans directly on your Apple devices. This app allows for offline work and exports annotated plans and reports, streamlining on-site reviews for professionals.

Highlights
  • Open DWG and PDF files
  • Measure distances and areas
  • Calibrate PDF scale
  • Add notes and markups
  • Export annotated plans
  • Work offline
Features
Read full description

PlanInspect is a CAD plan viewer for DWG and PDF. Open local DWG drawings and multipage PDF plans on iPhone, iPad, and Mac, then measure, mark up, and export the review. PlanInspect is a focused CAD plan viewer for opening, measuring, marking up, and exporting DWG drawings and PDF plans directly on iPhone, iPad, and Mac. Open plans from Files, Mail, iCloud Drive, Finder, or another Apple document source, then inspect them with the tools that matter on site: multipage sheets, DWG layouts and layers, PDF scale calibration, snapping, distance and area measurements, notes, markups, and review export. Built for architects, engineers, contractors, inspectors, and field teams who need to review plans without turning every device into a full drafting workstation. Key features: • Open local DWG and PDF files • Review DWG model space, layouts, and layers • Navigate multipage PDF plans • Calibrate PDF scale by ratio or known distance • Measure distances and areas • Snap to supported DWG geometry and detected PDF vector strokes • Add notes, photos, and markups • Export annotated plans and reports • Keep per-document viewer state • Work offline with local files • No required cloud upload PlanInspect Pro unlocks unlimited field review workflows such as advanced markups, clean exports, reports, photos, dictation, and other professional tools. Privacy Policy: https://planinspect.app/privacy Terms of Use (EULA): https://planinspect.app/terms

About

CoDrawing

Features
Read full description

CoDrawing은 건축 도면 위에 스케치하고, 측정하고, 팀원과 실시간으로 협업하는 앱입니다. ◆ 도면 마크업 — PDF·이미지 도면 위에 펜, 마커, 직선, 직각사각형으로 자유롭게 스케치. 필압 지원. ◆ 정확한 측정 — A3 축척(1:N) 입력 또는 두 점 보정으로 실제 치수의 거리·면적 측정. ◆ 핀 마커 — 현장 위치에 메모와 사진을 남기고, 핀 보고서 PDF로 정리. ◆ 실시간 협업 — 6자리 코드로 초대하면 떨어져 있는 팀원과 같은 도면 위에 동시에 그리고, 음성으로 대화. 협업 기록은 수정 불가 원본 파일로 자동 보존. ◆ 안심 보안 — 협업 데이터는 세션 종료 시 서버에서 자동 삭제. 건축 현장, 디자인 리뷰, 인테리어 상담, 원격 수업 — 같은 화면을 보며 설명해야 하는 모든 순간에.

Screenshots

PlanInspect CAD DWG PDF Viewer4 screens
CoDrawing4 screens

Verdict

The call

The clearest difference is in-app purchases: CoDrawing at none against PlanInspect CAD DWG PDF Viewer's 3. CoDrawing also leads on iOS requirement (13.0 vs 17.0). PlanInspect CAD DWG PDF Viewer's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads 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. PlanInspect CAD DWG PDF Viewer sells 3 in-app purchases, starting at $4.99 per month. CoDrawing asks for nothing beyond the download.

UpkeepUpdate frequency

PlanInspect CAD DWG PDF Viewer ships an update every 3 weeks, CoDrawing every 3 months. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 6 level
PlanInspect CAD DWG PDF Viewer versus CoDrawing: the parameters behind the verdict, then further details
ParameterPlanInspect CAD DWG PDF ViewerCoDrawing
PriceFreeFree
Rating3.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.013.0 — better
Further details — not scored
Size22 MB131 MB
Age rating4+4+
DeveloperJhumanJkijeong Kwon

In-app purchases

3 purchases

PlanInspect CAD DWG PDF Viewer

Subscriptions2
  • PlanInspect Pro Monthly$4.991 Month
  • PlanInspect Pro Yearly$39.991 Year
One-time1
  • PlanInspect Pro Lifetime$99.99
None

CoDrawing

No in-app purchases

Questions

Is PlanInspect CAD DWG PDF Viewer free?
PlanInspect CAD DWG PDF Viewer is free to download, with in-app purchases available.
Is CoDrawing free?
CoDrawing is free to download, with no in-app purchases.
Do PlanInspect CAD DWG PDF Viewer or CoDrawing have ads?
Neither PlanInspect CAD DWG PDF Viewer nor CoDrawing shows ads.
Which is updated more often, PlanInspect CAD DWG PDF Viewer or CoDrawing?
PlanInspect CAD DWG PDF Viewer ships an update every 3 weeks, and CoDrawing every 3 months. Most recently, PlanInspect CAD DWG PDF Viewer was updated on October 28, 2026 and CoDrawing on October 25, 2026.

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