SaaS (software as a service)

SaaS Overview
SaaS Structure
Advantages and Disadvantages of SaaS
Data Security in Cloud Services
The Future of SaaS and Local Software

SaaS Overview

SaaS, or Software as a Service, is a cloud technology that allows users to access software over the internet without the need to install it on local devices. This can be compared to renting an apartment, where the tenant gains access to a furnished space, while all maintenance issues remain the owner's responsibility. Most SaaS platforms not only provide access to software but also offer data storage services, including projects, information, and emails.

One example of a SaaS service is Unisender, which enables mass mailing, creating chatbots and landing pages, as well as storing contact databases and email templates. SaaS services typically operate on a subscription basis, where users can choose from various pricing plans that vary depending on the tools offered and the volume of cloud storage. Some services provide the option for custom pricing plans, allowing users to pay only for the features they actually use, and easily switch to another plan when needs change. Additionally, many platforms offer free trials or demo plans with limited functionality to familiarize users with their features.

SaaS Structure

SaaS is part of a broader category of cloud technologies that includes several levels of hierarchy:

IaaS (Infrastructure as a Service) — virtual data centers and servers.
PaaS (Platform as a Service) — cloud development environments.
SaaS — ready-made applications available in the cloud.

This entire ecosystem is grouped under the term XaaS (Everything as a Service), where "X" can represent various services. Cloud computing allows data to be processed simultaneously on multiple servers, making storage and processing more flexible and scalable. SaaS products, such as text and graphic editors, social networks, CRM systems, and e-commerce platforms, have long occupied their niches in the market, providing users access to necessary tools without the need to install software.

Advantages and Disadvantages of SaaS

Over the past two decades, SaaS services have significantly simplified life for users. Today, cloud technologies offer numerous advantages, including:

Cost Savings: subscribing to SaaS is usually cheaper than purchasing software licenses.
Collaboration: multiple users can work on the same project simultaneously from different locations.
Data Security: automatic data saving reduces the risk of loss during failures.
Accessibility: the ability to work with an account from different devices — from computers to mobile phones.
Regular Updates: users always have access to the latest versions of software.

However, despite all the advantages, SaaS also has its disadvantages:

Long-term Costs: using a paid service may end up being more expensive than a one-time license purchase.
Risk of Data Loss: information is stored on the provider's servers, which can be risky in case of failure.
Low Speed Under High Load: performance may deteriorate with a large number of users.
Dependence on the Internet: lack of network connection makes using the service impossible.

Data Security in Cloud Services

Cloud services process and store a lot of sensitive information, making data security critically important. The main principle of SaaS is that user information belongs solely to the user. Most services allow data export and exit from the platform at any time. However, it's important to remember that not all providers adhere to this principle. For example, in 2022, Canva restricted access to its services for Russian users, forcing many to seek alternatives and rush to download their data.

Despite ongoing efforts to enhance security, risks still remain. Threats can be divided into three categories:

Physical Data Loss: thanks to backup and data distribution across multiple servers, the likelihood of information loss is virtually zero.
Hacker Attacks: malicious actors may attempt to hack cloud services to steal data or cause damage.
Unreliable Employee Actions: there is a risk that data may be used inappropriately.

To enhance data security, users can follow certain recommendations: store information across multiple services, use strong passwords and two-factor authentication, and carefully read the terms of use.

The Future of SaaS and Local Software

SaaS services have significantly simplified workflows and, due to the COVID-19 pandemic, have gained new momentum for growth. Many companies have adapted to remote work, and SaaS has become a primary tool across various sectors. However, not everyone can fully transition to cloud technologies yet. Professionals in audio and video still prefer local software, as cloud solutions may not always meet their needs.