# DEVONthink To Go 4 vs Kagi Summarize

DEVONthink To Go 4 and Kagi Summarize both sit at 4.7 stars, but that hides the real split: 91% of Kagi Summarize's written reviews are positive against 43% of DEVONthink To Go 4's. Kagi Summarize also leads on in-app purchases (none vs 2) and update cadence (every 10 days vs every 3 weeks). DEVONthink To Go 4's advantage is ratings volume (226 vs 25). On price, rating, ads and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.7 for DEVONthink To Go 4 against 4.8 for Kagi Summarize. That said, the two scores are not equally well evidenced: DEVONthink To Go 4 has 226 ratings behind it against 25, so its average is the more settled of the two. Written reviews are what separate them: 43% of DEVONthink To Go 4's written reviews are positive against 91% of Kagi Summarize's.

DEVONthink To Go 4 ships an update every 3 weeks, Kagi Summarize every 10 days. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | DEVONthink To Go 4 | Kagi Summarize |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (226 ratings)](https://appshunter.io/ios/app/devonthink-to-go-4/id6532619226/reviews) | **[4.8 (25 ratings)](https://appshunter.io/ios/app/kagi-summarize/id6748308326/reviews)** |
| Number of ratings | **226** | 25 |
| Positive reviews | 42.9% of reviews | **90.9% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 191 MB | 33 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [DEVONtechnologies, LLC](https://appshunter.io/developer/395722473) | [Kagi Inc.](https://appshunter.io/developer/1478239470) |

## What reviewers say

### DEVONthink To Go 4

[App page](https://appshunter.io/ios/app/devonthink-to-go-4/id6532619226)

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:** Family Sharing, Siri integration, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Yearly | $19.99 | per year |


### Kagi Summarize

[App page](https://appshunter.io/ios/app/kagi-summarize/id6748308326)

Instantly transform web articles into tailored summaries that match your reading style and preferences. Choose from multiple summary formats and languages for a personalized content experience. Optimize your reading and expand your knowledge with this intelligent content companion.

**Highlights:** Instant article summaries, Multiple summary formats, Multilingual content recreation, Adaptive summary lengths, Unique reading modes, Private and no telemetry

**In-app purchases:** none


## Frequently asked questions

### Is DEVONthink To Go 4 free?

DEVONthink To Go 4 is free to download, with in-app purchases available.

### Is Kagi Summarize free?

Kagi Summarize is free to download, with no in-app purchases.

### Which has better reviews, DEVONthink To Go 4 or Kagi Summarize?

Kagi Summarize is rated higher. DEVONthink To Go 4 averages 4.7 out of 5 from 226 ratings, while Kagi Summarize averages 4.8 from 25 ratings.

### Do DEVONthink To Go 4 or Kagi Summarize have ads?

Neither DEVONthink To Go 4 nor Kagi Summarize shows ads.

### Which is updated more often, DEVONthink To Go 4 or Kagi Summarize?

DEVONthink To Go 4 ships an update every 3 weeks, and Kagi Summarize every 10 days. Most recently, DEVONthink To Go 4 was updated on September 23, 2026 and Kagi Summarize on September 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*