# Bell TechPubs vs NAAA 365

The clearest difference is ads: Bell TechPubs at none against NAAA 365's shown. NAAA 365's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Bell TechPubs ships an update every 3 months, NAAA 365 every 5 months. The most recent releases landed on June 1, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Bell TechPubs | NAAA 365 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/bell-techpubs/id6504771476/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free | — |
| Size | 116 MB | 53 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Bell Helicopter Textron Inc.](https://appshunter.io/developer/1436073546) | [National Agricultural Aviation Association](https://appshunter.io/developer/986026118) |

## What reviewers say

### Bell TechPubs

[App page](https://appshunter.io/ios/app/bell-techpubs/id6504771476)

Access technical manuals and interactive documents for mission-critical operations. Supports online and offline viewing, with features like hyper-linking and interactive figures for easy navigation and troubleshooting.

**Highlights:** Online and offline manual access, Interactive PDF and S1000D IETM formats, Integrated hyper-linking between documents, Update notifications for new revisions, Zoomable interactive figures, Fault isolation and wiring diagrams

**Features:** macOS Compatibility

**In-app purchases:** none


### NAAA 365

[App page](https://appshunter.io/ios/app/naaa-365/id6749057001)

**In-app purchases:** none


## Frequently asked questions

### Is Bell TechPubs free?

Bell TechPubs is free to download, with no in-app purchases.

### Is NAAA 365 free?

NAAA 365 is free to download, with no in-app purchases.

### Do Bell TechPubs or NAAA 365 have ads?

NAAA 365 shows ads; Bell TechPubs does not.

### Which is updated more often, Bell TechPubs or NAAA 365?

Bell TechPubs ships an update every 3 months, and NAAA 365 every 5 months. Most recently, Bell TechPubs was updated on June 1, 2026 and NAAA 365 on September 18, 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.*