FAR/AIM vs R66 PRO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FAR/AIM
Access comprehensive aviation regulations and the Aeronautical Information Manual on your mobile device. Stay updated with frequent content revisions and utilize powerful search and bookmarking tools for quick reference.
- Complete FAR/AIM text
- Intelligent full-text search
- Context-sensitive search
- Bookmarks and highlights
- Frequent content updates
- Email sections
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The FAR/AIM in your pocket. This app was built specifically for pilots and aviation professionals. It is a one-stop reference for those who are involved with flying. Updates? We do them frequently. About once per month for the regs and 2-3 times a year for the AIM and PC/G. You’ll be much more up-to-date than with the hard copies, which are typically updated only once per year. An in-app subscription grants access to ongoing content updates. Other features: • Free one-week trial for new users. Try it for yourself at no risk with no commitment. • Complete text FAR/AIM, namely 14 CFR, Chapter 1 (FAR) and NTSB 830, and Aeronautical Information Manual (AIM), including charts and images. • Lightning fast browsing. • Intelligent search with full-text and header options. • Context sensitive search (limit search to certain sections). • Bookmarks and user highlights. • Saved search term history. • Email sections to friends. Contents: The complete FAA FAR. Don't be left missing regs. CFR 14 Parts 1, 3, 11, 13, 14, 15, 16, 17, 21, 23, 25, 26, 27, 29, 31, 33, 34, 35, 36, 39, 43, 45, 47, 49, 60, 61, 63, 65, 67, 71, 73, 77, 91, 93, 95, 97, 99, 101, 103, 105, 117, 119, 120, 121, 125, 129, 133, 135, 136, 137, 139, 141, 142, 145, 147, 150, 151, 152, 153, 155, 156, 157, 158, 161, 169, 170, 171, 183, 185, 187, 189, 193, 198. CFR 49, Part 830 (NTSB 830), Aeronautical Information Manual, PC/G. Like this app? Check out our other aviation applications: • FAA Test Prep - Private Pilot (PVT) • FAA Test Prep - Instrument Pilot (IR) • FAA Test Prep - Commercial Pilot (COM) • FAA Test Prep - Fundamentals of Instructing • FAA Test Prep - Aviation Mechanic General • FAA Test Prep - Aviation Mechanic Airframe • FAA Test Prep - Aviation Mechanic Powerplant Comments or questions? Email us at support@lawstack.com.
R66 PRO
This flight computer app calculates weight and balance and performance figures for the Robinson R66 Turbine helicopter. It features a professional load manifest with digital signature and graphical displays for easy understanding of complex calculations.
- Weight & Balance calculations
- Performance figure calculations
- Professional load manifest
- Digital signature
- Graphical E6B
- Save helicopter setups
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Gyronimo Performance Pad Pro R66 Turbine (c) Claus Richter The ultimate flight computer for the Robinson R66 for iPad3 (Retina) or newer and iPad Mini Retina. Optimized for RETINA DISPLAY THIS IS THE PRO-VERSION featuring a professional load manifest with digital signature, graphical E6B and the ability to load and save up to 5 helicopter setups. The R66 Performance Pad Pro is a flight computer customized for the new Robinson R66 Turbine helicopter. Weight & Balance and important performance figures as found in the flight manual will be calculated in just seconds. We recommend the Pad for professional pilots, however, it is also a great tool for flight students who want to become familiar with the complex performance calculations of turbine helicopters. A Load Manifest will be computed and sent to your email address. Confirm your calculations by checking the graphical displays. - Set up you own helicopter data (Basic Empty Weight, Mission Equipment etc) - Load and save unlimited flights and helicopter setups - Send data to your email - Check OGE ceiling on a new designed graphical display The Pad does all the complex calculations for you, however, it is very easy to use. Set Pressure Altitude and OAT via sliders and the following will be computed in real time: - In Ground Effect (IGE) max. Weight - Out Of Ground Effect (OGE) max. Weight. - Out of Ground Effect Ceiling (OGE Ceiling) - Climb Rate - Power Assurance (MGT and Torque) - Professional Load Manifest with digital signature. - Load and safe up to 5 helicopters - Add custom items ***** All results are graphically displayed using the GRAPHS from the FLIGHT MANUAL. Contact us for a custom version or extensions. For iPad 3 or newer and for iPad Mini Retina DISCLAIMER: The author disclaims any liability for any direct, indirect, incidental, or consequential losses or damages in connection with your access to or use of this software. The information contained in this software is for general information purposes only.
Screenshots
Verdict
The clearest difference is price: FAR/AIM at Free against R66 PRO's $59.99. FAR/AIM also leads on update cadence (fortnightly vs every 2 months) and device support (4 vs 1). R66 PRO's advantage is review sentiment (100% vs 63%) and in-app purchases (none vs 1). On ads and iOS requirement 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
FAR/AIM is free to download; R66 PRO costs $59.99 up front. FAR/AIM sells 1 one-off in-app purchase. R66 PRO asks for nothing beyond the download.
FAR/AIM ships an update fortnightly, R66 PRO every 2 months. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.
| Parameter | FAR/AIM | R66 PRO |
|---|---|---|
| Price | Free — better | $59.99 |
| Rating | 4.7 (1.1K ratings) — better | — |
| Positive reviews | 63.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 1.1K — better | — |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod, Mac — better | iPad |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 134 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Tekk Innovations LLC | Gyronimo, LLC |
Customer experience
FAR/AIM
R66 PRO
Bugs and requests
FAR/AIM
Reported bugs
3 issues- Highlighting causes app to crash
- Bookmarking feature is unreliable
- Subscription issues and billing problems
Requested features
4 requests- Ability to highlight and bookmark content
- Improved organization and navigation
- Sync across devices
- Rotorcraft-specific regulations
R66 PRO
Not enough reviews yet to summarise bugs or requests.
In-app purchases
FAR/AIM
- 1-Year Subscription$24.99
R66 PRO
No in-app purchases



