
FocusStack
Toggl
Rize
Clockify
Everhour
Harvest
RescueTime
TimeCamp
Spatius
Anam
LiveAvatar by HeyGen
Synthesia.io
Avatar SDK
D-ID
TruGen AI
Hedra
FocusStack
Most productivity tools tell you where your time went after you get distracted.
FocusStack helps you stay focused while the work is happening.
Start a focus session, name the task you’re working on, and pick a project. FocusStack automatically tracks the apps and websites you use, blocks distractions you’ve chosen to avoid, and nudges you when your attention starts drifting.
At the end of the day, you get a complete picture of where your focus actually went, how much time each project received, and whether your actions matched your intentions.
Features
Built for
The goal isn’t to help you work more.
It’s to help you spend more time on the things that matter.
Spatius is next-generation real-time digital human infrastructure that enables AI to communicate through natural, expressive digital characters rather than text and voice alone. Companies can use Spatius across AI education, recruiting interviews, customer service, smart terminals, and companion products to create more engaging and lifelike user experiences.
Powered by its self-developed cloud-edge 3DGS technology, Spatius addresses visual quality, deployability, and cost at the same time. The product runs across web, mobile, and intelligent hardware, remains stable on constrained networks and a wide range of devices, and supports long-duration, high-concurrency interactions at predictable costs.
Spatius currently serves TAL Education and other leading customers in the education, recruiting, smart devices , and AI companion sectors. These products have reached millions of end users and supported tens of millions of digital human conversations, helping customers take real-time digital humans from demos into long-term, large-scale production.
FocusStack
SpatiusFocusStack's answer
Most productivity tools are passive. They tell you where your time went after the day is over.
FocusStack is designed to help while the work is happening.
FocusStack combines focus, time tracking, and productivity insights into a single workflow.
Spatius's answer:
Spatius combines photorealistic 3D Gaussian Splatting avatars with a cloud-edge rendering architecture built specifically for real-time AI interaction. Instead of rendering every frame on cloud GPUs and streaming it as video, Spatius sends lightweight motion data to the user’s device, where the avatar is rendered locally.
This approach addresses visual quality, network reliability, device coverage, and operating cost at the same time. It allows digital humans to remain responsive during long conversations, work across web, mobile, and intelligent hardware, and scale to high-concurrency production environments.
FocusStack's answer
Most competitors focus on measuring productivity.
FocusStack focuses on improving it.
Tools like Toggl, Clockify, and many time trackers are great at recording hours. FocusStack goes a step further by helping users stay attentive while they’re working through focus sessions, distraction blocking, and real-time nudges.
Users don’t just learn where their time went. They actively protect where it goes next.
Spatius's answer:
Spatius combines photorealistic 3D Gaussian Splatting avatars with a cloud-edge rendering architecture built specifically for real-time AI interaction. Instead of rendering every frame on cloud GPUs and streaming it as video, Spatius sends lightweight motion data to the user’s device, where the avatar is rendered locally.
This approach addresses visual quality, network reliability, device coverage, and operating cost at the same time. It allows digital humans to remain responsive during long conversations, work across web, mobile, and intelligent hardware, and scale to high-concurrency production environments.
FocusStack's answer
FocusStack is built for people who spend most of their day on a computer creating, building, studying, or solving problems.
Typical users include:
Anyone who wants to reduce distractions and spend more time doing meaningful work can benefit from FocusStack.
Spatius's answer:
Spatius is built for companies and developers creating AI products that benefit from natural, face-to-face interaction. Its primary users include teams working in AI education, recruiting and interviews, customer service, smart terminals, digital assistants, intelligent devices, and AI companion products.
It is especially well suited to organizations that require long-duration conversations, high concurrency, cross-platform deployment, custom-branded characters, or reliable operation on constrained networks and hardware.
FocusStack's answer
FocusStack started with a simple frustration.
I would sit at my computer for hours, feel busy all day, and still wonder where my time had gone.
I tried existing productivity and time-tracking tools. They were useful for understanding what happened after the fact, but they didn’t help me stay focused in the moment.
So I started building a tool for myself.
The idea was simple: create something that could help me stay attentive while working, automatically track my activity, block distractions, and show me how I actually spent my day.
What started as a personal tool quickly became FocusStack.
Spatius's answer:
Spatius was created to close the gap between digital human demonstrations and real-world deployment. Many avatar technologies can produce an impressive short demo, but become difficult or expensive to operate when conversations last longer, user numbers grow, or products must run across diverse devices and network environments.
The Spatius team developed its own cloud-edge 3DGS technology to solve these production challenges together. Today, Spatius helps companies turn AI into a more natural and expressive presence, bringing real-time digital humans into education, recruiting, smart devices, customer-facing terminals, and companion applications.
Spatius's answer:
Spatius is primarily built on proprietary 3D Gaussian Splatting technology and a cloud-edge rendering architecture.
Its cloud-based Motion Server converts generated speech into lightweight facial and motion data, while the AvatarKit SDK renders and animates the 3DGS character locally on the client device. Platform technologies include WebGL and WebGPU for web applications, Metal for iOS, and Vulkan for Android. Spatius can receive real-time audio through technologies such as WebSocket, WebRTC, LiveKit, and Agora, and can integrate with third-party ASR, LLM, and TTS providers.
Spatius's answer:
TAL Education is one of Spatius’s leading customers. Spatius also works with established companies across education, recruiting, smart devices, and AI companion products.
Products powered by Spatius have reached millions of end users and supported tens of millions of digital human conversations, demonstrating the platform’s ability to operate in long-term, large-scale production environments.
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Clockify - Simple and free time tracker. Perfect for small and mid-sized businesses as well as freelancers. Unlimited projects and users, unlimited productivity. Get all the premium functionalities, completely free.
Synthesia.io - Create AI videos by simply typing in text. Make engaging videos for e-learning, customer onboarding, etc. No need for actors, cameras or audio equipment.