# FieldSize vs Kagi Assistant

The clearest difference is update cadence: Kagi Assistant at weekly against FieldSize's every 3 months. FieldSize's advantage is iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. FieldSize sells 1 in-app purchase, starting at $24.99 per year and Kagi Assistant sells 1 in-app purchase, starting at $28.99 per month. Whichever you choose, the download price is not the number that matters.

FieldSize ships an update every 3 months, Kagi Assistant weekly. The most recent releases landed on October 12, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | FieldSize | Kagi Assistant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (36 ratings)](https://appshunter.io/ios/app/kagi-assistant/id6755965340/reviews)** |
| Number of ratings | — | **36** |
| Positive reviews | — | 65.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | — | Free |
| Size | 15 MB | 30 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Chris Weed](https://appshunter.io/developer/1795373394) | [Kagi Inc.](https://appshunter.io/developer/1478239470) |

## What reviewers say

### FieldSize

[App page](https://appshunter.io/ios/app/fieldsize/id6743102897)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly | $24.99 | per year |


### Kagi Assistant

[App page](https://appshunter.io/ios/app/kagi-assistant/id6755965340)

Access over 30 leading AI models for private, ad-free interactions. Get grounded answers with web access, create custom assistants, and manage conversations with adjustable retention controls. Designed for thinkers, creators, and professionals to enhance problem-solving and research.

**Highlights:** Access 30+ leading AI models, Private chat with adjustable retention, Create custom assistants, Web access for grounded answers, Quick and Research Assistant modes, Edit prompts and switch models mid-conversation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ultimate Monthly | $28.99 | per month |


## Frequently asked questions

### Is FieldSize free?

FieldSize is free to download, with in-app purchases available.

### Is Kagi Assistant free?

Kagi Assistant is free to download, with in-app purchases available.

### Do FieldSize or Kagi Assistant have ads?

Neither FieldSize nor Kagi Assistant shows ads.

### Which is updated more often, FieldSize or Kagi Assistant?

FieldSize ships an update every 3 months, and Kagi Assistant weekly. Most recently, FieldSize was updated on October 12, 2026 and Kagi Assistant on October 13, 2026.

---

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