Softonic revisited the “iPhone Duo vs iPad” question this week after Apple’s foldable rumours firmed up around a 2026 or 2027 launch. Whether the Duo ships or not, the question stays: which iOS apps make an iPhone actually feel like a small iPad, and which iPad apps keep working when we pull an iPhone out on the train.
We put together the best iOS apps for cross-device continuity between iPhone and iPad in 2026. Every pick handles the handoff well, syncs quickly, and does not rely on Apple’s continuity features alone.
What matters in an iPhone-iPad continuity app
- True cross-device sync, not just import. Edits made on one device should land on the other in seconds.
- A shared feature set. iPad-only features (multi-column, sidebar, keyboard shortcuts) that hide gracefully on iPhone.
- Handoff and Universal Clipboard. Apple’s own APIs, done right. Wake the other device and the app picks up where we left off.
- Offline first. iCloud, Dropbox, or WebDAV sync works; but the app has to keep working when the plane’s Wi-Fi does not.
- Pencil and keyboard support on iPad without iPhone regressions. The iPad-first apps often forget iPhone; the iPhone-first apps often forget the Pencil.
- A file format we own. Plaintext, PDF, or a documented format. Not a proprietary bag we cannot leave.
Quick comparison
| App | Best for | Free plan | Starting price | Sync |
|---|---|---|---|---|
| Obsidian | Long-form plaintext notes | Full app | Around $8/mo Sync (optional) | Obsidian Sync, iCloud, third-party |
| Bear | Elegant markdown notes | Free tier | Around $30/year Pro | iCloud |
| Craft | Structured docs across devices | Free tier | Around $8/mo Pro | Craft cloud, iCloud export |
| Notability | Handwritten notes and PDF markup | Free tier | Around $15/year Plus | iCloud |
| GoodNotes | Notebook-style PDF and handwriting | Free tier (3 books) | Around $10/year or lifetime tier | iCloud, Google Drive |
| Notion | Databases and shared knowledge | Free personal | Around $8/mo Plus | Notion cloud |
| Apple Notes | Native, zero-config | Free | Free | iCloud |
| 1Writer | Markdown scratch on iPhone | Around $5 one-time | Around $5 one-time | iCloud, Dropbox, WebDAV |
The apps
1. Obsidian — Best cross-device markdown vault
Obsidian stores everything as local markdown files. Sync options range from Obsidian’s own end-to-end encrypted service to iCloud Drive to a self-hosted Git repo. The iPad build supports split-panes; the iPhone build keeps the same shortcuts on a single column.
Where it falls short: the app is desktop-first, and the mobile builds have less-mature plugin support. Some community plugins fail on iOS.
Pricing:
- Free: Full app
- Paid: Obsidian Sync around $8/mo, Publish around $16/mo (both optional)
Platforms: iOS, iPadOS, macOS, Windows, Linux, Android
Download: Obsidian on the App Store
Bottom line: For anyone who wants notes we still own in 20 years, this is the pick.
2. Bear — Best minimal markdown notes with iCloud sync
Bear is a designer’s markdown app. Fast, quiet, and native across iPhone, iPad, and Mac. The 2.x line adds real backlinks and folder trees. iCloud sync moves edits in a couple of seconds.
Where it falls short: iCloud only. No cross-platform, no Windows or Android access. The Pro tier is required for sync at all.
Pricing:
- Free: Local-only tier
- Paid: Around $30/year Pro (adds sync and themes)
Platforms: iOS, iPadOS, macOS
Download: Bear on the App Store
Bottom line: The most beautiful pick on this list. Anyone locked into the Apple ecosystem gets a lot out of it.
3. Craft — Best cross-device structured document tool
Craft treats every note as a set of composable blocks, sync-first across every device we own. iPad multi-column support looks like a proper document editor; the iPhone build collapses to a single view without losing the sidebar.
Where it falls short: the free tier caps the number of documents. The AI assistant features that landed in 2025 are locked behind Pro.
Pricing:
- Free: Limited daily documents
- Paid: Around $8/mo Pro
Platforms: iOS, iPadOS, macOS, Windows, web
Download: Craft on the App Store
Bottom line: The best pick for anyone who thinks in structured documents rather than free-form notes.
4. Notability — Best cross-device handwritten notes
Notability on iPad turns Apple Pencil into a real notebook. On iPhone, the same notes open in read-mode with clean scroll and search. iCloud sync brings hand-drawn diagrams to whatever device is nearest.
Where it falls short: the 2021 subscription move upset many long-time users. Existing lifetime licenses were grandfathered, but new features (audio replay, math conversion) are subscription-only.
Pricing:
- Free: Limited handwriting per month
- Paid: Around $15/year Plus
Platforms: iOS, iPadOS, macOS
Download: Notability on the App Store
Bottom line: For anyone who takes handwritten class or meeting notes on iPad, this is the sync target.
5. GoodNotes — Best iPad notebook that mirrors to iPhone
GoodNotes is the other side of the Notability coin. Notebook-first layout, better PDF annotation, and iCloud sync that finally holds up on GoodNotes 6. iPhone displays the same notebooks as read-only or with a stylus.
Where it falls short: the 2024 shift to a “lifetime + optional AI subscription” model is generous but confusing; check exactly what tier the App Store offers before we buy.
Pricing:
- Free: Three notebooks
- Paid: Around $10/year or lifetime tier around $30
Platforms: iOS, iPadOS, macOS, Windows, Android
Download: GoodNotes on the App Store
Bottom line: If we already own GoodNotes on iPad, we should be reading those notebooks on iPhone too.
6. Notion — Best cross-device team knowledge base
Notion carries the same databases and pages across every device. The iPad build finally handles multi-column layouts natively as of 2025; iPhone is a mobile-web-quality experience but works offline for recent pages.
Where it falls short: iPad and iPhone are still not first-class citizens. Some database views load slowly, and offline edits sometimes conflict on reconnect.
Pricing:
- Free: Free personal
- Paid: Plus around $8/mo, Business around $15/mo
Platforms: iOS, iPadOS, macOS, Windows, web, Android
Download: Notion on the App Store
Bottom line: For team knowledge shared across devices, Notion remains the default.
7. Apple Notes — Best zero-config default
Apple Notes is invisible until we depend on it. Handoff between iPhone and iPad happens without a login. Folders, tags, shared notes, and Apple Pencil sketches sync through iCloud with zero setup.
Where it falls short: the search index still lags. Rich formatting is limited compared to Bear or Craft. No Windows or Linux client, and the web version is bare.
Pricing:
- Free: Full app, iCloud storage tier applies
Platforms: iOS, iPadOS, macOS, web
Download: Preinstalled on iPhone and iPad, or via the App Store search for restore.
Bottom line: The one everyone forgets to recommend, but it is often the right answer for casual users.
8. 1Writer — Best iPhone-first markdown scratch pad
1Writer started as an iPhone-focused markdown editor with iCloud, Dropbox, and WebDAV sync. It syncs cleanly with Obsidian vaults and works well as a lightweight iPhone companion to a heavier iPad-based writing setup.
Where it falls short: development pace has slowed. The iPad build looks like a scaled iPhone view rather than a native tablet experience.
Pricing:
- Free: None
- Paid: Around $5 one-time
Platforms: iOS, iPadOS
Download: 1Writer on the App Store
Bottom line: The buy-once app for anyone who mostly writes on iPhone and occasionally opens the iPad.
How to pick the right one
- We already live in iCloud: Apple Notes for casual, Bear for polished, Notability for handwritten.
- We want to escape iCloud lock-in: Obsidian with plaintext files.
- We think in structured documents: Craft.
- We share notes with a team: Notion.
- We annotate PDFs across devices: GoodNotes or Notability.
- We write mostly on iPhone: 1Writer with iCloud.
FAQ
What is Handoff and does every note app support it? Handoff is Apple’s system-level API for signalling “the user is doing this on device A, wake device B to continue.” Most apps in this list implement it; Notion is the notable exception.
Which of these works well with Apple Pencil? Notability, GoodNotes, and Apple Notes have real Pencil support with palm rejection. Bear, Craft, and Obsidian support Scribble (handwriting-to-text) but not full inking.
Are these apps still useful on a foldable iPhone if Apple ships one? Yes. Apps built to reflow between iPhone and iPad views handle a foldable well by definition. Obsidian, Craft, and Notion already work across screen sizes; Bear and Notes need Apple to bridge the layout.
How does iCloud sync compare to Obsidian Sync? iCloud is free (within storage tier) and system-level. Obsidian Sync is a paid, end-to-end-encrypted alternative that also handles version history and file conflict resolution more gracefully than iCloud.
What is the safest export option if I want to leave? Plaintext markdown. Obsidian, Bear, and 1Writer all default to it. Notability and GoodNotes export to PDF or their own bundle. Notion exports to Markdown or HTML but with structural loss on complex databases.
