Comparison

STL Viewer vs CS PDF Editor

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

Head to head
About

STL Viewer

Features
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STL Viewer transforma seu iPhone ou iPad em uma estação profissional de inspeção de modelos 3D. Abra arquivos STL binários ou ASCII e analise a geometria com uma experiência Metal fluida, criada para engenharia, impressão 3D, prototipagem, educação e revisão técnica. VISUALIZAÇÃO PROFISSIONAL • Rotação, deslocamento e zoom multitoque • Vistas isométrica, frontal, traseira, lateral, superior e inferior • Modos sólido, wireframe, sólido + wireframe, X-Ray e orientação de normais • Materiais profissionais e ambientes de alto contraste INSPEÇÃO E MEDIÇÃO • Medição precisa entre pontos selecionados diretamente na superfície • Plano de corte interativo nos eixos X, Y e Z • Dimensões gerais, área superficial e volume • Contagem de triângulos e vértices únicos • Unidades STL atribuídas pelo usuário, sem suposições silenciosas SAÚDE DA MALHA • Diagnóstico de malha fechada • Detecção de arestas abertas e não manifold • Identificação de faces degeneradas • Classificação visual da integridade do modelo RELATÓRIOS STUDIO • Relatório técnico em PDF gerado no próprio aparelho • Campos de projeto, empresa e responsável • Resumo de geometria e saúde da malha pronto para compartilhar PRIVACIDADE LOCAL-FIRST Seus modelos são processados localmente. A geometria não é enviada para nossos servidores. O plano gratuito permite abrir, navegar e visualizar arquivos STL. Pro libera inspeção e medição avançadas. Studio adiciona relatórios técnicos em PDF. Assinaturas podem ser canceladas a qualquer momento nos ajustes da App Store. by Transfer.med.br

About

CS PDF Editor

This app offers a comprehensive suite of tools for managing documents on iOS devices. It allows users to view, edit, and scan PDFs, convert Word documents to PDF, and add digital signatures. The app aims to enhance productivity and streamline document workflows for professionals and students.

Highlights
  • All Documents and PDF Viewer
  • Signature Pad
  • Word to PDF Conversion
  • PDF Editor and Annotator
  • Text Recognition Scan
  • Document Scanner
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Introducing All Document PDF Viewer and Document Scanner: Elevate your document management experience with our all-in-one iOS app. Designed for professionals and students alike, our app streamlines your workflow by providing powerful tools right at your fingertips. Key Features: - All Documents and PDF Viewer: Effortlessly read and navigate through PDF documents with our user-friendly interface. - Signature Pad: Securely sign and authenticate documents directly within the app, adding a personal touch to your digital paperwork. - Word to PDF: Seamlessly convert Word documents to PDF format, ensuring compatibility and preserving the integrity of your files. - PDF Editor: Edit and annotate PDFs with ease, making last-minute changes or adding notes for clarity. - Text Recognition Scan text and copy in to your any document. - All document viewer now you can view all documents with our app. - Document Scanner: Transform physical documents into high-quality PDFs using your device's camera, making digitization a breeze. Benefits: - Efficiency at Your Fingertips: Save time with a suite of tools designed to handle a variety of document tasks efficiently. - Eco-Friendly: Reduce paper use by digitizing your workflow, contributing to a greener environment. - Enhanced Productivity: Streamline your document management process, from scanning to signing, all within a single app. - Mobility: Access and manage your documents on the go, ensuring that your work travels with you. Elevate your productivity and document management with PDF Generator Document Scanner. Download now and experience the ultimate convenience in handling your digital documents.

Screenshots

STL Viewer3 screens
CS PDF Editor4 screens

Verdict

The call

The clearest difference is ads: STL Viewer at none against CS PDF Editor's shown. CS PDF Editor's advantage is update cadence (every 3 weeks vs every 43 months). On price, in-app purchases, device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

STL Viewer ships an update every 43 months, CS PDF Editor every 3 weeks. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 8 level
STL Viewer versus CS PDF Editor: the parameters behind the verdict, then further details
ParameterSTL ViewerCS PDF Editor
PriceFreeFree
Rating—4.5 (13 ratings) — better
Positive reviews—85.7% of reviews
Number of ratings—13 — better
Update frequencyEvery 43 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size4 MB82 MB
Age rating4+4+
DeveloperFelipe Marques de BarrosMACROMATRIX (PRIVATE) LIMITED

In-app purchases

None

STL Viewer

No in-app purchases

None

CS PDF Editor

No in-app purchases

Questions

Is STL Viewer free?
STL Viewer is free to download, with no in-app purchases.
Is CS PDF Editor free?
CS PDF Editor is free to download, with no in-app purchases.
Do STL Viewer or CS PDF Editor have ads?
CS PDF Editor shows ads; STL Viewer does not.
Which is updated more often, STL Viewer or CS PDF Editor?
STL Viewer ships an update every 43 months, and CS PDF Editor every 3 weeks. Most recently, STL Viewer was updated on October 8, 2026 and CS PDF Editor on October 2, 2026.

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