Outerline vs Zeit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Outerline
A fast, fluid Markdown editor designed for focused writing. It offers live syntax highlighting, a convenient keyboard toolbar, and robust organization features. Your notes are saved as ordinary .md files, ensuring portability and no vendor lock-in.
- Offline Markdown editing
- File-based storage (.md files)
- Live syntax highlighting
- Keyboard toolbar for formatting
- Wiki-style note linking
- Full-text search
- Export to Markdown, HTML, PDF
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Outerline gives you space to think and space to write. A fast, fluid Markdown editor with no server, no database, and no clutter. Truly native on macOS and iOS. It works offline, opens instantly, and stays out of your way so you can just write. YOUR FILES STAY YOURS Every note is an ordinary .md file in a folder you choose, on your iPhone, in iCloud Drive, or anywhere in Files. No proprietary format and no account required to write. Open the same folder in any other Markdown app whenever you like, and take your work with you if you ever leave. A WRITING SURFACE, NOT A DASHBOARD • Live syntax highlighting, with each heading level at its own size • A keyboard toolbar with the formatting you actually reach for • Smart lists that continue, indent, and break out the way you expect • Auto-pairing brackets, quotes, and backticks • In-document search, word count, and reading time • Editor and preview, a tap apart • Choose your typeface, size, line height, and preview theme • Autosave, so a draft is never waiting on you to remember FIND ANYTHING FAST Full-text search across your whole library. Nested folders, Starred and All Documents views, and colored #tags you write inline and filter by later. Swipe to star, move, or delete. CONNECT YOUR IDEAS Link notes with [[wiki links]] and an autocomplete palette. The inspector shows what points here, each with a line of context and the folder it came from, keeps every external link in one place, and jumps you to any heading in the document. ANNOTATE WITHOUT TOUCHING THE MARKDOWN Highlight passages in five colors, attach notes to them, and leave anchored comments on any selection. Annotations live beside your files, so your Markdown stays clean and portable. NEVER LOSE A DRAFT Automatic timestamped snapshots, a diff viewer, and one-tap restore. Deleted notes move to Recently Deleted, where you can bring them back. WORK WITH SIRI AND SHORTCUTS Ask Siri to create or find a note, and use Shortcuts to open or append to one. On iOS 27, Siri and Apple Intelligence can use the open document as context on supported devices. Availability depends on language, region, and system settings. No Outerline account or subscription required. EXPORT, DIAGRAM, AND BACK UP Export any note as Markdown, HTML, or PDF. Write Mermaid diagrams in fenced code blocks and see them render in preview and in exports, entirely offline. Zip your whole library, metadata included, whenever you want a backup. THE SAME NOTES ON YOUR MAC This is the whole app, not a companion. Outerline for macOS syncs the same library as iOS, while adding split view, Quick Look, and an optional local Model Context Protocol server for AI assistants. Buy Outerline once on either platform and use it on both. Your Outerline account and Publish subscription carry across seamlessly. OUTERLINE PUBLISH (OPTIONAL) Publish a note to a link anyone can open, then keep it current as you save. Publishing needs a free Outerline account and an Outerline Publish subscription. Everything else in Outerline works without either. Outerline Publish is an auto-renewing monthly subscription. Payment is charged to your Apple Account at confirmation of purchase, and renews automatically unless you turn it off at least 24 hours before the end of the current period. Manage or cancel in your Apple Account settings. Terms of Use: https://outerline.so/support/terms/ Privacy Policy: https://outerline.so/support/privacy/
Zeit
Effortlessly plan across different time zones with this app. Visualize city hours alongside your local time, preview future times with a swipe, and easily identify overlapping work hours. It offers iCloud sync and clean light/dark modes.
- Horizontal hour strips for multiple time zones
- Visual working hours and off-hours
- Swipe to preview future times
- Unlimited city additions
- iCloud sync across devices
- Light and dark modes
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Zeit makes planning across time zones effortless. See every city's hour next to yours, swipe through the day, and instantly find the overlap — no mental math, no date rollover headaches. • Horizontal hour strips across every time zone you add • Working hours and off-hours shaded at a glance • Swipe to preview any future time; tap Now to snap back • Add unlimited cities — your local time is always first • 12-hour or 24-hour format • iCloud sync across iPhone, iPad, and Mac • Clean light and dark modes • Free, private, no accounts
Screenshots
Verdict
The clearest difference is price: Zeit at Free against Outerline's $9.99. Zeit also leads on in-app purchases (none vs 4). Outerline's advantage is update cadence (every 4 days vs monthly) and chart position (#196 vs unranked). On rating, ads, 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
Zeit is free to download; Outerline costs $9.99 up front. Outerline sells 4 in-app purchases, starting at $1.99 per month. Zeit asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Outerline against 5.0 for Zeit. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
Outerline ships an update every 4 days, Zeit monthly. Both last shipped on November 5, 2026.
| Parameter | Outerline | Zeit |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 5.0 (3 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 4 days — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Free — better |
| Best chart rank | #196 — better | — |
| Devices | iPhone, Mac | iPhone, iPad |
| Requires iOS | 26.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 34 MB | 2 MB |
| Age rating | +12 | 4+ |
| Developer | Adam Goehrig-Bawany | Blackbelt Labs |
Customer experience
Outerline
Zeit
In-app purchases
Outerline
- Outerline Publish$1.991 Month
- Small Tip$1.99
- Outerline Tip Medium$4.99
- Large Tip$9.99
Zeit
No in-app purchases









