LynxOS 178 RTOS Reviews & Product Details

LynxOS-178 is a commercial off-the-shelf (COTS) real-time operating system (RTOS) designed to meet the stringent requirements of safety-critical systems, particularly in avionics. It supports x86, Arm, and PowerPC platforms and is built upon open standards, ensuring compatibility and flexibility for developers. LynxOS-178 provides security and safety through strict, hardware-enforced isolation between real-time processes, applications, and the RTOS kernel services and drivers. Key Features and Functionality: - Safety Certification: LynxOS-178 has been certified multiple times to DO-178C Design Assurance Level A (DAL A), the highest level of safety certification for airborne systems. - Standards Compliance: The RTOS is fully compliant with ARINC 653, POSIX, and the Future Airborne Capability Environment (FACE) standards, facilitating software portability and reuse across different platforms. - Reusable Software Component (RSC): LynxOS-178 is the first and only time- and space-partitioned RTOS to have obtained an RSC award from the Federal Aviation Administration (FAA), allowing developers to reuse previously certified software components, thereby reducing certification costs and time. - Hardware Support: It supports multicore processors across x86, Arm, and PowerPC architectures, providing flexibility in hardware selection. - Partitioning: The RTOS offers time, space, and resource partitioning, ensuring that faults or overloads in one partition do not affect others, thereby enhancing system reliability and security. Primary Value and Problem Solving: LynxOS-178 addresses the critical need for a reliable, certifiable RTOS in safety-critical applications, particularly in the aerospace and defense industries. By adhering to open standards and achieving high-level safety certifications, it enables developers to create systems that are both secure and interoperable. The RSC certification significantly reduces the time and cost associated with the certification process, allowing for faster development cycles and more efficient resource utilization. Additionally, its support for multiple hardware architectures and compliance with industry standards ensure that LynxOS-178 can be seamlessly integrated into a wide range of systems, providing a robust foundation for mission-critical applications.

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Lynx Software Technologies

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LynxOS 178 RTOS Community

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Siddharth J.

Software Developer

Information Technology and Services

Mid-Market (51-1000 emp.)

2/5/2026

"Rock-Solid, Predictable RTOS with DO-178C and POSIX Compliance"

5/5

What do you like best about LynxOS 178 RTOS?

Honestly, what I like most about LynxOS 178 RTOS is how rock solid and predictable it is. The hard real time behavoiur and DO-178C Certification make it feel built for serious, no nonsense systems. Plus the POSIX compliance makes development way less painful than you'd expect for a safety critical RTOS. Review collected by and hosted on G2.com.

What do you dislike about LynxOS 178 RTOS?

LynxOS 178 RTOS is very strict and structured, but that's exactly what makes it so reliable. It can feel less flexible at first, yet that discpline pays off in safety critical environment. Once you are used to it, the consistency is actually reassuring. Review collected by and hosted on G2.com.

What problems is LynxOS 178 RTOS solving and how is that benefiting you?

LynxOS 178 RTOS solves hard real-time determinism, so I can trust timing behaviour in safety critical systems without constant fear of missing the deadlines. It also handles DO178C certification and partitioning, which save huge effort and time when working in avioinics grade envoironments. Review collected by and hosted on G2.com.

Honey J.

Software Developer

Information Technology and Services

Mid-Market (51-1000 emp.)

2/5/2026

"LynxOS-178 RTOS: Rock-Solid Reliability and Safety-Critical Partitioning"

4.5/5

What do you like best about LynxOS 178 RTOS?

The best thing about LynxOS-178 RTOS is its high level of reliability and safety. It provides strong time and memory partitioning, ensuring that one application cannot affect others. Because of this, it is widely used in safety-critical systems such as avionics and defense applications. Review collected by and hosted on G2.com.

What do you dislike about LynxOS 178 RTOS?

One major disadvantage of LynxOS-178 RTOS is its rigid and time-consuming development process. Most system settings are statically configured, so even minor changes require reconfiguration and rebuilding. This makes development slower compared to more flexible RTOS or Linux systems. Review collected by and hosted on G2.com.

What problems is LynxOS 178 RTOS solving and how is that benefiting you?

LynxOS-178 RTOS addresses major problems such as system failures, unpredictable timing, and interference between applications in safety-critical systems. It uses strong time and memory partitioning to isolate applications, which benefits me by ensuring high reliability, deterministic performance, and easier certification for critical projects. Review collected by and hosted on G2.com.

Mounika M.

Certification analyst

Mid-Market (51-1000 emp.)

10/15/2025

"Strong Safety and Performance, but High Cost and Complexity"

4/5

What do you like best about LynxOS 178 RTOS?

LynxOS-178 RTOS stands out for its strong emphasis on safety, impressive real-time performance, and commitment to open standards. These qualities make it particularly well-suited for use in safety-critical systems. Review collected by and hosted on G2.com.

What do you dislike about LynxOS 178 RTOS?

high cost, complexity, and the challenges of customization and vendor lock-in. Review collected by and hosted on G2.com.

Rohit R.

Ruby on Rails Developer

Small-Business (50 or fewer emp.)

3/1/2024

"Usage experience of LynxOS 178 RTOS"

5/5

What do you like best about LynxOS 178 RTOS?

It used real-time embedded system in applications for avionics, aerospace and the military to control and telecommunications.

It solved many hidden problems such as time-consuming ,reduces risk and gives chance of success, also provides better resource management.

It is ease of use and stability. Its design aesthetics and also easy management

Its not charge mean that Free or No Cost. We can take paid license only for some operating system(OS)

Its is beneficial for me. Review collected by and hosted on G2.com.

What do you dislike about LynxOS 178 RTOS?

Dislikes of this is we can't use on a regular system. Its need linux OS installed to use. But now its is outdated and also i had been faced crashing software some time, also command facility less supportive than its competitor real time operating systems. As i notice it occupies more memory and also not support network domain when connects with IoT domain. Review collected by and hosted on G2.com.

What problems is LynxOS 178 RTOS solving and how is that benefiting you?

Iease of use and also stability. Its design aesthetics and also provides easy management

It is Free or No Cost. We can take paid license only for some operating system(OS)

Its is beneficial for me. It solved many hidden problems such as time-consuming ,reduces risk and gives chance of success, also provides better resource management. Review collected by and hosted on G2.com.

Pramod C.

Mid-Market (51-1000 emp.)

6/25/2023

"Review for LynxOS"

5/5

What do you like best about LynxOS 178 RTOS?

LynxOS is one of the best real-time operating systems, which provides the best user experience, with easy-to-use and does not charge for using it. We need to take a paid license in some OS, but it's free and also good in security. Review collected by and hosted on G2.com.

What do you dislike about LynxOS 178 RTOS?

We need a certification to meet the requirements when there is requirement-based testing. It would help if you had Linux specially installed on your system to use LynxOS. Review collected by and hosted on G2.com.

Andre J.

A&R Manager

Small-Business (50 or fewer emp.)

10/25/2022

"Real time operating system"

3.5/5

What do you like best about LynxOS 178 RTOS?

Eliminates time and cost of certification effort Review collected by and hosted on G2.com.

What do you dislike about LynxOS 178 RTOS?

Needing certification in order to meet the requirements based testing Review collected by and hosted on G2.com.

DEEKSHA G.

Cybersecurity analyst

Mid-Market (51-1000 emp.)

8/2/2022

"LynxOS 178 RTOS - the OS we need"

4.5/5

What do you like best about LynxOS 178 RTOS?

The LynxOS 178 RTOS is a real-time partitioning operating system, which optimizes the software component.Its algorithm is well scheduled, there is least crashing. Review collected by and hosted on G2.com.

What do you dislike about LynxOS 178 RTOS?

The dislikes are you can't use it on a regular system. you need linux specially installed to put this os to use Review collected by and hosted on G2.com.