Comparison

BCooler 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

BCooler

Features
Read full description

This app will save you from exploding bottles in the freezer! It calculates when your bottle will reach two temperatures: drinkable and about to freeze. At each of those stages it will notify you, so you can always know when your bottles are ready to drink! This app supports: - Glass bottles, plastic bottles, cans - Different bottle sizes - Different starting temperatures - Different freezer temperatures - Unique notification sounds

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

BCooler3 screens
DEVONthink To Go 44 screens

Verdict

The call

The clearest difference is in-app purchases: BCooler at none against DEVONthink To Go 4's 2. BCooler also leads on iOS requirement (16.6 vs 26.0). DEVONthink To Go 4's advantage is update cadence (every 3 weeks vs every 68 months). On price, 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

Both are free to download. DEVONthink To Go 4 sells 2 in-app purchases, starting at $2.99 per month. BCooler asks for nothing beyond the download.

UpkeepUpdate frequency

BCooler ships an update every 68 months, DEVONthink To Go 4 every 3 weeks. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
BCooler versus DEVONthink To Go 4: the parameters behind the verdict, then further details
ParameterBCoolerDEVONthink To Go 4
PriceFreeFree
Rating—4.7 (257 ratings) — better
Positive reviews—44.8% of reviews
Number of ratings—257 — better
Update frequencyEvery 68 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS16.6 — better26.0
Further details — not scored
Size2 MB193 MB
Age rating4+17+
DeveloperHans EberhardtDEVONtechnologies, LLC

In-app purchases

None

BCooler

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 BCooler free?
BCooler is free to download, with no in-app purchases.
Is DEVONthink To Go 4 free?
DEVONthink To Go 4 is free to download, with in-app purchases available.
Do BCooler or DEVONthink To Go 4 have ads?
Neither BCooler nor DEVONthink To Go 4 shows ads.
Which is updated more often, BCooler or DEVONthink To Go 4?
BCooler ships an update every 68 months, and DEVONthink To Go 4 every 3 weeks. Most recently, BCooler was updated on October 26, 2026 and DEVONthink To Go 4 on October 30, 2026.

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