# CFR Title 37 vs CFR AI

The clearest difference is in-app purchases: CFR Title 37 at none against CFR AI's 4. CFR Title 37 also leads on update cadence (every 3 weeks vs every 2 months) and ratings volume (6 vs 1). On price, rating, ads and device support there is nothing between them.

Both are free to download. CFR AI sells 4 in-app purchases, starting at $0.99 per 7 days. CFR Title 37 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for CFR Title 37 against 5.0 for CFR AI. That said, the two scores are not equally well evidenced: CFR Title 37 has 6 ratings behind it against 1, so its average is the more settled of the two.

CFR Title 37 ships an update every 3 weeks, CFR AI every 2 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | CFR Title 37 | CFR AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (6 ratings)](https://appshunter.io/ios/app/cfr-title-37/id1560843785/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/cfr-ai-title-45/id6503191821/reviews) |
| Number of ratings | **6** | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | **Freemium** | Subscription |
| Size | 24 MB | 13 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [BarReady](https://appshunter.io/developer/1560844267) | [SmerDev Studio LLC](https://appshunter.io/developer/1732547078) |

## What reviewers say

### CFR Title 37

[App page](https://appshunter.io/ios/app/cfr-title-37/id1560843785)

Access the complete text of U.S. intellectual property regulations, including patents, trademarks, and copyrights. Offers robust search, customizable interface, and annual updates. Premium features include annotation tools and cross-device syncing.

**Highlights:** Full access to Title 37 CFR, Robust search functionality, User-friendly interface, Enhanced annotation tools (premium), Sync across devices (premium), Includes bonus aviation and hazardous materials regulations

**In-app purchases:** none


### CFR AI

[App page](https://appshunter.io/ios/app/cfr-ai-title-45/id6503191821)

This app provides AI-powered assistance for understanding Title 45 of the Code of Federal Regulations concerning social services and health. It offers instant answers, example questions, and an interactive chat interface for regulatory compliance professionals.

**Highlights:** AI-powered GPT-4o assistance, Instant answers on regulations, Example questions for guidance, Interactive AI chatbot, Notes, calendar, and reminders, User-friendly interface

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $0.99 | per 7 days |
| Monthly | $3.99 | per month |
| Biannual | $23.99 | per 6 months |
| Annual | $45.99 | per year |


## Frequently asked questions

### Is CFR Title 37 free?

CFR Title 37 is free to download, with no in-app purchases.

### Is CFR AI free?

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

### Which has better reviews, CFR Title 37 or CFR AI?

CFR Title 37 and CFR AI are both rated 5.0 out of 5 on the App Store, from 6 and 1 ratings respectively.

### Do CFR Title 37 or CFR AI have ads?

Neither CFR Title 37 nor CFR AI shows ads.

### Which is updated more often, CFR Title 37 or CFR AI?

CFR Title 37 ships an update every 3 weeks, and CFR AI every 2 months. Most recently, CFR Title 37 was updated on November 3, 2026 and CFR AI on October 30, 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.*