NAC vs MyLlama
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NAC
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Terms of Service: https://airportnac.com/terms-and-conditions/ EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ NAC-Dynamic Friction Decelerometer (NAC-DFD®) The NAC-DFD® is an electronic friction testing device designed for airport runways. This 3-axis mobile iOS™ application enables airport operators to "spot-check" contaminated surfaces during winter runway operations. Key Features: Accurate Measurements: Records vehicle braking values by measuring the "g" force or lock-wheel braking action during qualified tests. Automated Reporting: Automatically generates final reports segmented into runway thirds: "touchdown," "midfield," and "rollout." Comprehensive Data Recording: Captures all necessary data, including time, date, operator, and assigned user ID. Versatile Contaminant Selection: Allows operators to choose from 14 different contaminant types for reporting runway conditions during winter operations. Easy Data Export: Supports exporting results using the standard print function. Additional Information: The NAC-DFD® assists airport operators in assessing the effectiveness of friction-enhancing treatments by indicating trends in runway friction levels. It is approved by the Federal Aviation Administration, as listed in Advisory Circular 150/5200-30C, Appendix 3. Note: For continued testing, a subscription is required.
MyLlama
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MyLlama is a lightweight chat client for your own Ollama servers. Simply register one or more Ollama endpoints, start chatting, and keep your conversations neatly organized by chat room. All conversations stay connected to the Ollama servers you control. Key Features Connect to custom Ollama servers by URL Chat with models hosted on your own infrastructure Automatically save conversation history Organize chats by room for easy review Switch between multiple Ollama endpoints Clean, minimal interface focused on productivity MyLLama is designed for developers, researchers, and AI enthusiasts who prefer running and managing their own models. Your models. Your servers. Your conversations.
Screenshots
Verdict
The clearest difference is in-app purchases: MyLlama at none against NAC's 1. NAC's advantage is iOS requirement (13.0 vs 18.6). On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. NAC sells 1 in-app purchase, starting at $199.00 per year. MyLlama asks for nothing beyond the download.
NAC ships an update fortnightly, MyLlama every 3 weeks. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.
| Parameter | NAC | MyLlama |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 3 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Neubert Aero Corp | FiveStar AI |
In-app purchases
NAC
- U.S. Region$199.001 Year
MyLlama
No in-app purchases









