Comparison

2Do vs DEVONthink To Go 4

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

Head to head
About

2Do

This task manager helps you organize work, home, and study with flexible checklists, projects, notes, and reminders. Capture ideas naturally, set custom alerts, and sync across devices. Collaborate with others and find tasks easily with smart lists and location-based reminders.

Highlights
  • Natural language input for tasks
  • Checklists, projects, and sub-tasks
  • Notes, images, and voice recordings
  • Flexible recurring tasks and reminders
  • Smart Lists for filtered views
  • Location-based reminders
  • Collaboration over Wi-Fi
Features
Read full description

2Do is a to-do list, task manager and daily planner for iPhone. Organize work, home and study with checklists, projects, notes and reminders. 2Do for iPad and Mac are sold separately. CAPTURE IT ALL • Type naturally. 2Do recognizes dates, times, repeats, alerts, durations, priorities, tags, lists and saved locations as you type. • Hold [+] for Quick Add and enter one task after another. • Capture with Siri, Shortcuts, widgets and Control Center. Turn shared text, links, photos or videos into tasks. • Email tasks to your private Mail to 2Do address, or send a numbered list to create a checklist. • Collect ideas in the GTD Inbox and organize them later. SIMPLE TASKS, CHECKLISTS & PROJECTS • Create tasks, checklists and projects with sub-tasks. Add notes, images, voice recordings and multiple alarms. • Write notes with live Markdown formatting and keep useful links with your tasks. • Set flexible repeats, start dates and durations. Call, email or open a link from a task. • Arrange tasks in named sections within a list. LIST GROUPS, LISTS & SMART LISTS • Organize your lists in groups, alongside built-in views for upcoming, starred and scheduled tasks. • Save searches as reusable Smart Lists. Search titles, notes, tags and dates, with sounds-like matching when needed. • Filter by date, priority, status or tags. Each list remembers its sort order and Focus settings. PROJECT VIEW • Open a project to see just that project and its sub-tasks. Set its sort order independently of the list around it. TAGS • Organize tags in groups and tap a tag to filter tasks. • Combine tags with Smart Lists for the tasks you return to often. Pause a tag to hide its tasks until you resume it. LOCATIONS • Create and assign locations, find nearby tasks on a map and build location-based Smart Lists. • Get a reminder when you arrive, with location access enabled. SYNC, YOUR WAY • Sync with Apple Reminders, Dropbox, Todoist, Toodledo, iCloud, Fastmail, Fruux, Yahoo or a CalDAV server you trust. • Keep tasks in Apple Reminders across your devices and capture them with Siri. • Merge work from different devices or exclude private lists from sync. COLLABORATE • Share lists and work together over local Wi-Fi without a cloud service. • Share read-only or editable lists over iCloud with others using compatible versions of 2Do. FIND AND FOCUS • Jump to any task or list with Quick Open. • Select several tasks to schedule, defer, tag, move or edit them together. ALARMS & YOUR DAY • Set multiple alarms, automatic reminders and repeating alerts. • Use full-screen alarms on supported devices with iOS or iPadOS 26.1 or later. • See calendar events and the day timeline above your tasks to plan around appointments. MADE FOR IPHONE • Slide between your lists, tasks and the Tags, Nearby and Calendar panels. Pinch to choose how much task detail you see. • Check tasks on Apple Watch and add complications to your watch face. PASSWORDS & BACKUPS • Lock individual lists or the whole app. • Keep automatic backups, save and restore external backups, or restore a single list. Move backups between 2Do on iOS and Mac. AWARDS • Apple - Best of 2013 Mac App Store • MacStories - App of the Year 2015 iOS • Cult of Mac - Best Task Manager for iOS

About

DEVONthink To Go 4

Manage your entire knowledge library on your iPad and iPhone. Organize, edit, and annotate documents, notes, and more. Leverage generative AI for summaries, content creation, and advanced search. Syncs privately and securely across devices.

Highlights
  • Document organization and management
  • AI-powered summaries and content creation
  • PDF annotation and editing
  • On-device OCR for searchable documents
  • Cross-device secure synchronization
  • Custom metadata and tagging
  • Shortcuts automation
Features
Read full description

Your entire knowledge library. Always with you. Always private. DEVONthink To Go is your document repository when you're not at your Mac. Collect, organize, edit, and annotate. Use generative AI to work with your stored knowledge or create new documents. Automate with Shortcuts. Our time-tested technology keeps all your data in sync between your Mac, iPad, and iPhone, privately and securely. The professional document and information manager for iPad and iPhone. From DEVONtechnologies, driving innovation since 2002. - Students: Annotate research papers with AI-powered summaries - Teachers: Organize your materials, use AI to create handouts and tests - Researchers: Have your data with you in a robust, powerful knowledge manager - Lawyers: Keep all case files organized and encrypted Have your important documents with you at all times: - Never lose an important document again, keep everything organized - Store PDFs, notes, images, bookmarks, just about any type - File your documents in groups, even more than one group at a time - Use tags, mark documents with flags or as unread, give them a star rating - Versioning lets you return to a previous state of a document - Revision-proof databases prevent edits to documents with special requirements - Sync your data between Macs, iPads, and iPhones, securely and privately Work with your documents: - Edit texts, Markdown files, or rich text documents - Annotate and edit PDFs with common tools - Make scans, scanned PDFs, or images searchable with the built-in, on-device OCR - Add custom, searchable metadata fields to enrich your documents Use generative AI: - Work with your favorite provider and model - Chat with your documents, analyze or summarize them - Transform text or extract text from images and even handwritten notes - Create new images from your data - Find documents using natural language with the AI-powered search assistant - Let the AI make order from chaos, rename documents, add tags, or label or rate them DEVONthink To Go is well-integrated with other apps: - Link to your documents from other apps with universal links - Access all your documents also through the Files app - Clip data from almost any app with the Clip to DEVONthink extension - Use drag-and-drop, inside DEVONthink To Go or between apps - Automate repetitive tasks with Shortcuts actions DEVONthink To Go is great standalone but also works perfectly with DEVONthink for Mac and across multiple devices. Synchronize your databases securely and privately over the local network or through a cloud service of your choice. You decide what data is synced, when, and where. Strong encryption makes sure that your data belongs to you, not to your service provider or us. Privacy policy: https://www.devontechnologies.com/r/privacy End user license agreement: https://www.devontechnologies.com/r/eula

Screenshots

2Do4 screens
DEVONthink To Go 44 screens

Verdict

The call

The clearest difference is price: DEVONthink To Go 4 at Free against 2Do's $9.99. 2Do's advantage is review sentiment (83% vs 39%) and in-app purchases (none vs 2). On ratings volume, 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

DEVONthink To Go 4 is free to download; 2Do costs $9.99 up front. DEVONthink To Go 4 sells 2 in-app purchases, starting at $2.99 per month. 2Do asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

2Do holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 150 and 260 respectively. Written reviews point the same way: 83% of 2Do's written reviews are positive against 39% of DEVONthink To Go 4's.

UpkeepUpdate frequency

2Do ships an update daily, DEVONthink To Go 4 every 3 weeks. The most recent releases landed on November 10, 2026 and November 8, 2026 respectively.

Scorecard8 real differences · 3 level
2Do versus DEVONthink To Go 4: the parameters behind the verdict, then further details
Parameter2DoDEVONthink To Go 4
Price$9.99Free — better
Rating4.9 (150 ratings) — better4.7 (260 ratings)
Positive reviews83.3% of reviews — better39.4% of reviews
Number of ratings150260 — better
Update frequencyDaily — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#13 — better—
DevicesiPhone, Apple WatchiPhone, iPad
Requires iOS18.6 — better26.0
Further details — not scored
Size167 MB193 MB
Age rating4+17+
DeveloperBeehive Innovations ServicesDEVONtechnologies, LLC

Customer experience

2Do

All ratings150 ratings
Positive98.0%
Neutral1.3%
Negative0.7%
Written reviews90 reviews
Positive83.3%
Neutral6.7%
Negative10.0%

DEVONthink To Go 4

All ratings242 ratings
Positive92.6%
Neutral2.5%
Negative5.0%
Written reviews33 reviews
Positive39.4%
Neutral21.2%
Negative39.4%

In-app purchases

None

2Do

No in-app purchases

2 purchases

DEVONthink To Go 4

Subscriptions2
  • Monthly1 Month trial$2.991 Month
  • Yearly1 Month trial$19.991 Year

Questions

Is 2Do free?
2Do costs $9.99, with no in-app purchases.
Is DEVONthink To Go 4 free?
DEVONthink To Go 4 is free to download, with in-app purchases available.
Which has better reviews, 2Do or DEVONthink To Go 4?
2Do is rated higher. 2Do averages 4.9 out of 5 from 150 ratings, while DEVONthink To Go 4 averages 4.7 from 260 ratings.
Do 2Do or DEVONthink To Go 4 have ads?
Neither 2Do nor DEVONthink To Go 4 shows ads.
Which is updated more often, 2Do or DEVONthink To Go 4?
2Do ships an update daily, and DEVONthink To Go 4 every 3 weeks. Most recently, 2Do was updated on November 10, 2026 and DEVONthink To Go 4 on November 8, 2026.

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