I use this app alongside the Mac OS version, so I can’t comment on how this functions on its own, but in tandem with Devonthink, it is a fantastic combination. It holds everything that I'd like it to hold. It's super easy to get to the things I want. It suggests the things that make sense to what I'm trying to do.But it does take practice. I think too often people are looking to an app to do everything for them, suggest everything for them, make it simply work without thought. You do have to think, but in so doing, I find myself well rewarded by this wonderful piece of software. Further, anytime I've had troubles, I've been able to reach out to the company, and they've been super responsive.

I used v3 many times a day and was excited for this upgrade, but I have to warn people away from this version. It is not ready for public use. It hangs and then crashes every few pages when reading PDFs (many different files). Downloading files from a sync share takes multiple retries, and even when successful takes far longer than the same file on v3. Search rankings seem broken--keywords in document titles ranked dozens of rows less "relevant" than single references within content, if I could find them at all. This version seems like it was rushed out prematurely and is a big step backwards in the stability of core functionality. I'm going to revert to v3 (which I unwisely deleted) for now and cross my fingers that future updates make this version usable for me. Two stars because it sort of works in a pinch but is very frustrating for more than brief usage.

I have been using Devonthink for a few years since my retirement. I have found it to be an absolutely indispensable tool in my workflow as a regional writer. I use it as the “boneyard” for a digital Zettlekasten, the later implemented in Obsidian. Devonthink and Obsidian work well together; for example, I can link Obsidian notes directly to Devonthink database locations. I recommend Devonthink to anyone who wants to organize knowledge.

The UI is clunky, the sync speed is so-so, the settings are non-intuitive: but it more or less does what it says it will do.Update - no, it doesn’t do what it says it will. I was able to sync and download items the first couple days, but for the past week every attempt to download and read an item on my phone has given a spinner for 30 seconds and then an app crash. Yes I’ve verified and repaired, like a caveman (why are users expected to look after database maintenance in 2026?) And things still spin and crash. Sometimes if I’m lucky I’ll see the clickable “download 433 bytes” or whatever but that link does nothing. I’ve paid for maybe 3 years worth of DtTG and I think I’ve successfully read maybe three items on my phone in that period.