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What is Simular (Sai)?
Sai, an autonomous computer agent that runs your screen tasks in the cloud or on your devices Simular builds computer-use agents: software that operates a computer the way a person does, with clicks, keystrokes and logic, instead of calling an API.
Our verdict
Simular targets work that APIs cannot reach. Sai drives real desktop and cloud computers, you can teach it a workflow once and replay it, and the company backs it with published computer-use research and an open-source framework.
Full review
Simular builds computer-use agents: software that operates a computer the way a person does, with clicks, keystrokes and logic, instead of calling an API. Its flagship product is Sai, which the company calls a robosecretary. Sai runs autonomous computers that take on the screen tasks that eat into a working day. Simular describes itself as founded by ex-DeepMind scientists, and it publishes its research and open-source work on GitHub, including the Agent S computer-use framework and the Simulang scripting language.
What Sai does
Sai starts using your everyday apps with no integration work, runs on Windows, macOS, Linux or a cloud virtual machine, and can replay a workflow you teach it once. That makes it useful for tasks that have no public API, such as legacy desktop software or internal tools. Workflows can be shared publicly through the Simular Gallery, or privately inside a team on the Pro and Enterprise
Simular builds computer-use agents: software that operates a computer the way a person does, with clicks, keystrokes and logic, instead of calling an API. Its flagship product is Sai, which the company calls a robosecretary. Sai runs autonomous computers that take on the screen tasks that eat into a working day. Simular describes itself as founded by ex-DeepMind scientists, and it publishes its research and open-source work on GitHub, including the Agent S computer-use framework and the Simulang scripting language.
What Sai does
Sai starts using your everyday apps with no integration work, runs on Windows, macOS, Linux or a cloud virtual machine, and can replay a workflow you teach it once. That makes it useful for tasks that have no public API, such as legacy desktop software or internal tools. Workflows can be shared publicly through the Simular Gallery, or privately inside a team on the Pro and Enterprise plans.
Research credentials
The homepage states that Agent S received the Best Paper award at the ICLR 2025 Agentic AI for Science workshop and that Simular was first to reach human level on OSWorld 1.0. These are Simular’s own claims; check the linked papers before relying on them.
Pricing
Per the pricing page on 5 October 2026, Starter is $50 per month (shown reduced from $200), Premium is $200 per month and Pro is $500 per month, with custom Enterprise pricing. The page says access is invite only, with an option to move up the list by sharing Simular’s launch video. There is no annual pricing at the moment.
Who it's for
Best for
- Operators
- founders and teams who lose hours to repetitive screen work in tools that have no API
- and who want an agent that can work on a Windows or Mac machine.
Not ideal for
- Buyers who need a free tier
- annual billing or instant sign-up
- since access is invite only and the entry plan is $50 per month.
How we tested
AppsInsight desk research, 5 October 2026. We read Simular's homepage and pricing page and confirmed plan prices by viewing the pricing page on that date. We did not run Sai on a production workflow. Research and benchmark claims are Simular's own. Founder names, team size and founding year were not verified, so those fields are blank.
At a glance
| Pricing | Paid Subscription |
|---|---|
| Starting price | $50 |
| Free plan | No |
| Free trial | No |
| Pricing page | View pricing |
| Platforms | Web app, macOS, Windows, Linux, API / SDK |
| API | Yes |
| Company | Simular Inc. |
| Apps Insight Score | 42/100 |
| Implementation | Easy |
| Learning curve | Beginner |
Why this app scored 42/100
Editorial Review 25/30
- Product quality 7.5/10 8/10
- Ease of use 3.5/5 4/5
- Feature depth 4/5 4/5
- Innovation 4.5/5 5/5
- Value for money 1.5/3 2/3
- Recommendation confidence 1.5/2 2/2
Trust & Verification 4/25
- AppsInsight badge installed Badge not installed 0/15
- HTTPS website HTTPS 1/1
- Business support email Provided 1/1
- Privacy policy published Missing 0/2
- Terms of service published Provided 1/1
- Security certifications None listed 0/2
- Knowledge base / help center Missing 0/2
- Social profiles linked 4 profiles linked 1/1
Community 0/20
- Verified reviews & rating 0 reviews (5 needed) 0/15
- Recent reviews No reviews yet 0/5
Product Profile 10/20
- Detailed description 248 words 2/3
- Screenshots 2 screenshots 1/3
- Demo video No demo video 0/2
- FAQ 6 items 1/2
- Feature list 7 items 1/2
- Pricing published Plan tiers published 3/3
- Pros & cons Pros & cons listed 1/1
- Integrations 0 integrations 0/2
- API available Yes 1/1
- Company details 1 of 3 details filled 0/1
Freshness 3/5
- Listing recently updated Updated 0 days ago 3/3
- Recent changelog entry No changelog entries 0/2
Editorial points are assigned by AppsInsight editors and cannot be purchased or influenced.
Built for
Use case
AI & automation
Industry
SaaS & technology
How Simular (Sai) compares
| Feature | Simular (Sai) | Grain | OpenClaw | Decagon |
|---|---|---|---|---|
| Rating | 4.0 / 5 | 5.0 / 5 | 5.0 / 5 | 5.0 / 5 |
| Pricing | Paid Subscription | Free plan | — | — |
| Starting price | $50 | Free | — | — |
| Free plan | Included | Included | No | No |
| Free trial | No | No | No | No |
| Platforms | Web app, macOS, Windows, Linux, API / SDK | Web app, Browser extension, iOS (iPhone & iPad), Android, macOS, Windows, Linux | macOS, Windows, Linux | Web app |
| Best for | Operators, founders and teams who lose hours to repetitive screen work in tools that have no API, and who want an agent that can work on a Windows or Mac machine. | Sales teams, customer success teams, founders, agencies, ops teams, AI-first teams | Developers, solo founders, technical operators, AI enthusiasts, marketing agencies, SMB teams, support teams, internal ops teams | Enterprise SaaS teams, CX operations leaders, customer support automation teams, product-led companies, ops-heavy support organizations |
Simular (Sai) vs Grain Simular (Sai) vs OpenClaw Simular (Sai) vs Decagon
Key features
Computer-use agent
Sai operates apps through clicks and keystrokes, so it works without relying on APIs.
Cloud or local computers
Runs on Windows, macOS, Linux or cloud virtual machines, including an always-on computer on higher plans.
Teach once, replay
Record a workflow once and replay it repeatedly, with Simulang as the open-source scripting layer.
Workflow sharing
Share workflows publicly in the Simular Gallery or privately within a team on Pro and Enterprise.
Agent S research framework
Open-source computer-use agent framework published on GitHub, with papers on Agent S, S2 and S3.
API access
Full API access is part of the Pro plan.
Enterprise controls
Enterprise adds SSO, RBAC, SOC2, managed scaling and SLA guarantees.
Key benefits
- Automates tasks that expose no API
- Works across Windows, macOS, Linux and cloud VMs
- Backed by published research and open-source code
Pricing
Paid Subscription$50
Solo
Starter
$50 /mo
- Shown reduced from $200. Expanded access to a cloud-based Windows computer
- generous credits with more available to buy
- BYOD from Windows
- Mac or another device
- community support.
Solo
Premium
$200 /mo
- Everything in Starter. An always-on Windows or Mac computer
- significantly higher monthly credit allowance
- priority support.
Team
Pro
$500 /mo
- Everything in Premium. Unlimited usage within fair-use limits
- team workflow sharing
- full API access
- highest-priority support and capacity.
Enterprise
Enterprise
Custom /mo
- Everything in Pro. Managed scaling
- dedicated account team
- SSO
- RBAC and SOC2
- custom integrations
- SLA guarantees.
Pros & Cons
Pros
- Handles desktop and legacy workflows that API-based automation cannot reach
- Open-source Agent S and Simulang published on GitHub
- Teach a workflow once and replay it
- Cloud computer included on the entry plan, with BYOD from Windows, Mac or another device
Cons
- Invite only at the time of review
- No free plan and no annual pricing
- Entry price is $50 per month, and Pro is $500 per month
- Credit allowances are described as generous or higher but not published as numbers
Screenshots & media
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Frequently asked questions
What is Simular?
Simular is an autonomous computer platform that automates digital workflows across Windows, macOS, Linux and virtual machines without relying on traditional APIs.
What is Sai?
Sai is Simular's flagship product, a robosecretary that runs autonomous computers to take on screen tasks.
How much does Simular cost?
Starter is $50 per month, Premium is $200 per month, Pro is $500 per month and Enterprise is custom. There is no annual pricing at the moment.
Can Simular work without APIs?
Yes. Simular automates workflows that expose no public API by mimicking human interaction through clicks, keystrokes and logic.
Which platforms does Simular support?
macOS, Windows and Linux, and it can be deployed to virtual machines.
Can I share workflows with others?
Yes. Workflows can be shared publicly through the Simular Gallery, or privately within a team on the Pro and Enterprise plans.