Compared with Elastic Compute Service (ECS), Simple Application Server is easy to configure and allows you to quickly get started and deploy simple applications or websites. Simple Application Server is more suitable for users such as developers and students. This topic compares Simple Application Server and ECS in multiple aspects.
The following table compares Simple Application Server and ECS.
|Item||Simple Application Server||ECS|
|Intended users||Developers and students.||Individual or enterprise users who have specific technical development skills.|
|Scenarios||Simple applications that are not frequently accessed:
||All scenarios. Typical scenarios include:
|Billing||You can purchase plans and data disks by using the subscription billing method. Data transfers that exceed the subscription plans are billed based on the pay-as-you-go billing method.||ECS supports the subscription and pay-as-you-go billing methods, and supports preemptible instances. You can use the pay-as-you-go billing method together with reserved instances, savings plans, and storage plans. This helps you reduce costs over a long period of time.|
||ECS allows you to plan and manage networks based on your business requirements in
different scenarios. Examples:
|Images||Simple Application Server supports only OS images, application images, and custom images. You can use these images in various scenarios.||ECS provides various images, such as public images, custom images, shared images, and Alibaba Cloud Marketplace images. You can use these images to deploy and manage application environments.|
In scenarios such as high concurrency websites, video encoding and decoding, massively multiplayer online (MMO) games, and complex distributed cluster applications, we recommend that you use ECS. ECS provides more instance types, such as general-purpose instance types, compute-optimized instance types, big data instance types, ECS Bare Metal Instance types, GPU-accelerated, FPGA-accelerated, or NPU-accelerated heterogeneous computing instance types. For more information about ECS instance types, see Instance families.