Markdown, beautifully.

Read Markdown with diagrams, equations, tables, and highlighted code—on Mac, iPhone, and iPad. Open your existing files and get straight to the details.

Reading and Quick Look included. No subscription required.
Upgrade for writing, conversion, and export. Access & subscriptions

Telescopo Reader on Mac showing a Mermaid diagram, a callout and a measurements table
Telescopo Reader on iPhone with a Mermaid diagram and linked research notes
Reader on MacReader on iPhone Mermaid, tables, code and equations in one document.
“This is exactly the Markdown viewing I've been looking for!”
Neil
“Install, double-click, open. Simple. This is exactly the app I need for my work!”
naufalwibi
“I’ve tried many Markdown editors, but this one stands out. It’s smooth, handles diagrams and math beautifully, and PDF export is excellent.”
Man.Osm

Quick Look for complex Markdown.

Preview project plans, research, technical documentation, and Markdown generated by AI agents—right from Finder on Mac or Quick Look in Files on iPhone and iPad.

See rendered diagrams, equations, tables, and code before opening the document in Telescopo. Reading and Quick Look are included without a subscription.

Quick Look depends on system file-type routing. On iOS and iPadOS 27, Apple may show Markdown source instead; open the file in Telescopo for the complete reader.

Native Markdown Quick Look on Mac
Native Markdown Quick Look on Mac

Read beautifully

Make sense of your documents.

Turn Mermaid and ZenUML diagrams, LaTeX equations, tables, and highlighted code into a readable document. Follow the outline, find a detail, and choose a reading theme that suits you.

CommonMark and GitHub Flavored Markdown, with Telescopo Flavored Markdown enhancements including callouts, footnotes, wiki links, and extended diagram support.

Explore Markdown and diagram support
Coastal Observatory in the Lamplight reader theme on iPad

Premium

Give your ideas room to grow.

Write visually, edit Markdown source, or keep both together in live Split view. Build documents with tables, callouts, diagrams, and equations using formatting tools and guided inserts.

Start blank or use a guided template. Your document stays in portable Markdown, ready to continue on another device when stored in a shared provider location.

Develop a note into a document
Telescopo Visual editor on Mac with a Field notebook, headings and a survey table in Lamplight
Markdown source alongside the rendered Observation pipeline in Telescopo Split mode on Mac
Markdown source alongside the rendered Observation pipeline in Telescopo Split mode on Mac · Premium

Premium

Develop the details with AI.

On supported devices, the Telescopo AI Assistant helps you draft and refine text, tables, and supported diagrams. Preview the result before applying changes to your document.

On-device assistance. Availability depends on device, language, and Apple Intelligence settings.

The Telescopo AI Assistant showing a document request and its proposed result on Mac
The Telescopo AI Assistant showing a document request and its proposed result on Mac

Premium

Share your work with confidence.

Preview your PDF, choose paper size, orientation and margins, and add intentional page breaks. Share the document or export a Mermaid diagram as PNG or SVG.

Prepare a PDF to share
Coastal Observatory in the Lamplight reader theme on iPad
Telescopo PDF Preview on Mac showing the Coastal survey research brief, diagram and table

Read your way.
On screens small and large.

Set a comfortable reading size, choose your page width, and find a theme that suits you. Explore 15 built-in themes, from warm paper to midnight blue.

Pinch to zoom on iPhone, iPad, or a Mac trackpad. On Mac, hold ⌘ while scrolling your mouse to adjust document zoom. Enlarge diagrams and images for a closer look.

Lamplight · Reader on iPad

Coastal Observatory in the Lamplight reader theme on iPad
Actual app captures in English. Select a theme, then enlarge to read.

Watch document and diagram zoom

Native reader and diagram controls on Mac. Use pinch gestures on iPhone and iPad.

Connect the notes behind the idea.

Link a brief to its research, follow backlinks and browse relationships in Connections. Keep the source material close while you develop the brief.

Use Library search to find a file, Navigator to move through headings, and tabs to keep several documents open.

Explore connected notes
Telescopo Connections on Mac showing links between Coastal Observatory and its supporting notes

There’s more behind the page.

Move through a long document, find a detail, or start with a useful structure.

Keep your place.

Jump between headings with Navigator. Keep the document in view as you move.

Ground station runbook on Mac with its document outline open

Find the detail you need.

Search within the current note. Find stays beside your document tools at the bottom.

Find results in the current Telescopo document on Mac

Start with a little structure.

Choose a guided starting point, then make it your own in plain Markdown.

Telescopo guided note creation on Mac

Keep your ideas moving.

Read and work with Markdown on Mac, iPhone, and iPad. Keep documents in iCloud Drive or another supported provider to continue with the same files across devices.

Download Telescopo
Telescopo Reader on iPhone with a Mermaid diagram and linked research notes
Coastal Observatory in the Lamplight reader theme on iPad
Telescopo Visual editor on Mac with a Field notebook, headings and a survey table in Lamplight

Your ideas. Yours to keep.

Open Markdown in your existing folders. Work offline with downloaded files. Keep a document in iCloud Drive to continue on another device; local files stay local until you move or copy them.

No separate Telescopo account. Files and attachments remain in the locations you choose.

Choose where your notes live
Coastal Observatory in the Lamplight reader theme on iPad
Coastal Observatory.md
# Coastal Observatory

## Field observations

- Review satellite readings
- Compare sea temperatures
- Record findings

[Field notebook](Field%20notebook.md)

Reading included.
Unlock more when you’re ready.

Read your Markdown, including diagrams and equations, on Mac, iPhone, and iPad without a subscription. Unlock personal writing, conversion on supported hardware, and export with paid access.

Download TelescopoMac, iPhone and iPad
SetappMac only

The app shows your current price, eligibility and renewal terms before purchase. Subscriptions renew automatically unless canceled.

Already bought Telescopo for Mac?
Your earlier paid Mac app or lifetime purchase includes the new Mac version. Active App Store subscriptions cover all three platforms. Existing purchase details
Using Setapp?
Setapp includes premium features on Mac. Reading and Quick Look are included on iPhone and iPad; writing, conversion, and export there use App Store access. Setapp access
Sharing with your family?
Current subscriptions are individual. Everyone keeps their own files. Family Sharing details
Do I need to know Markdown?

No. Write and format supported content in the Visual editor, then use Read to review it. Switch to Markdown source when you need precise control. Either way, your writing remains a portable text file.

Can I explore the app first?

Read your own Markdown, including diagrams and equations, without a subscription. Explore the included sample documents, editing menus, and sample PDF previews. Changing documents, sharing samples, or saving, sharing, and printing PDFs and exporting diagrams require paid access.

How do I continue on another device?

Keep the Markdown file in iCloud Drive or another supported provider location available on both devices. Use the same iCloud account where needed and let files and attachments download. Local files stay local until moved or copied. Sync Preferences shares supported settings; it does not transfer documents. Reading synchronized files does not require a subscription.

Do I need a Telescopo account?

No separate Telescopo account is required. App Store purchases use your Apple Account; iCloud is optional. You can write, read and export offline once access and the required files are available on the device.

What happens to my notes if I cancel?

After paid access ends, the complete reader and Quick Look remain included, with diagrams and equations. Personal writing, conversion, and PDF, print, or diagram export require paid access. Samples remain available for reading, exploring tools, and PDF previews. Your files stay in their original locations.

All access and subscription questions

Bring your next idea into focus.

Read, write and share with Telescopo.

Download Telescopo