Client Collaboration Platform Made for Professional Services

I'm not sure how this product is getting anything past a two star unless they are paying for it but it has plenty of shortcomings.

1. Very insecure. I would not put any confidential documentation on this app. (Anyone can resuse the same browser session and steal important information)
2. Not user friendly at all. (Not challenging to use just not intuitive)
3. Limited customization options. (Can not customize the login page at all. Unable to delete certains items.)
4. Poorly written documentation. ( The documention does not address all features.)
5. Not all advertised functionality is there.

I have to be honest in my reviews.

This product has solved a whole stack of documentation, workflow, resource, and file sharing pain points in my business. I was a NimbusNote user 5 years ago. I liked it but it was slow, so I never got much use out of it. Fusebase builds on that original superdocs concept, but steps it up 100x. This product is elite tier, and this dev group is dedicated long-term. If you have multiple workflows to coordinate across a team of 10-15+... stack 10 codes and get to work. You'll never look back.

After two days of exploring Fusebase, I’ve added five more licenses (making a total of six). As a huge fan of Notion.co, Fusebase felt like a natural fit for me. While there’s a learning curve, I’ve been using Fusebase daily to replace tools and solve business problems.

Here are some use cases:

- Recently, I launched a niche research as a service model, and Fusebase is perfect for this. I can use one of the free templates to create a “sales or deal page” that I can send to prospects. These sales pages can include a Loom video introducing my services, a widget embedding my Calendly, and even a Fusebase lead form connected to a Fusebase automation. This sales page then becomes my private and secure client portal where my clients can view and e-sign PDFs (Fusebase allows users to upload PDFs and create multiple e-sign features that track if contracts are signed or not).

- I can create tasks assigned to me or my clients (and track tasks across all of my client workspaces).

- I can create simple Fusebase custom GPTs to help me actually perform the custom research for my clients.

- The cool thing is that users can simply save the Fusebase agent’s work as a page in a workspace or client portal.

- Fusebase creates a simple client data table for anyone who fills out a form or joins a portal. However, it’s not a CRM replacement (I wish it had a CRM).

- It’s not perfect, and I’m still fumbling around to figure out if and how I can do things. But they have a solid knowledge base with guides, screenshots, and videos, and I’m really impressed with their customer support.

Fusebase’s AI functions automate routine tasks like summarizing operational meetings, generating compliance reports, and managing checklists, which saves valuable time and reduces the risk of human error. The ability to handle diverse file types—photos, videos, PDFs, and text—supports comprehensive documentation of inspections and cargo conditions.Thanks to its flexible and scalable nature, especially with the cost-effective AppSumo lifetime deal, Fusebase fits well with the dynamic needs of marine transportation, helping professionals stay organized, enhance client engagement, and improve operational efficiency. It’s a powerful tool that adapts to this demanding, fast-moving industry.

As someone deeply involved in managing university IT infrastructure and running a digital agency, Fusebase has been an invaluable tool for streamlining both internal collaboration and client communication. Its AI-powered workspace allows me to consolidate project notes, meeting records, and task management all in one place, which significantly reduces the chaos of using multiple scattered tools. This centralization has helped me maintain clarity and efficiency across different projects, especially when juggling IT responsibilities and digital marketing client work simultaneously.

One of my earliest AppSumo lifetime purchases was Nimbus Note, now called Fusebase. From its notable start as an Evernote replacement to the current comprehensive platform for document storage, team member coordination and client and guest communication through professional looking client portals, they have steadily improved performance and constantly added new features. It's been one of my best purchases from AppSumo and I use Fusebase almost every day.

It has been a solid performer and is my GoTo for quickly saving website information, images, table data, and video recordings. My one call to support over the years was resolved quickly and professionally. I'm looking forward to their upcoming Notion-style database capabilities.

It's been so good for my needs I recently purchased an additional Tier to increase my limits.

Nimbus note was created to "manage all your information in one spot." Today, that is the least of it's capabilities.

I can tell you, this is personally my most productive software purchase from AppSumo and such a great investment.

Excellent product!
This is an outstanding piece of software — powerful, well-designed, and incredibly useful. However, the major drawback is the lack of a mobile app. In today’s world, everything is on the go, and any solid product is expected to have a fully functional mobile version.

With a mobile app, the value of this product would increase a hundredfold. I truly hope the developers plan to add this feature in the near future.

Thank you again for creating such a great and must-have tool!

I’ve been using Fusebase since its early days as Nimbus, and it has consistently proven to be one of the most capable and professional platforms in my toolkit. Over the years, I’ve seen it evolve from a promising note-taking app into a fully integrated knowledge and project management system. The level of customer service and technical support has always been exceptional — responsive, informed, and genuinely invested in user success. What once felt complex now operates seamlessly, serving as an intelligent extension of my workflow — a true second brain. The addition of AI has further elevated the experience, streamlining organisation and decision-making. The custom templates, colour-coded tables, and intuitive interface demonstrate real attention to design and usability. Fusebase has become an essential part of how I run my business efficiently and professionally.

The features and value of this product are undeniable. You can review all the docs, videos, and reviews about the product and the innovation of the Fusebase Team. I want to speak to customer service and overall value.

Are you tired of being a just number in a sea of integers? I began with Fusebase in 2020, purchase my first Lifetime memberships in 2023, and expanded my investment into the software with this App Sumo sale. The Fusebase Team, in 2020 thru 2025, responded within 3-5 hrs and had my problem solved within than time frame as well.

They offer personal one-on-one calls and video meetings to show you how to use the product based on your use case. This is not a one and done. This an ongoing FREE service that exponentially adds to the value of Fusebase. The owner, Pavel, offered to meet with me as well and I am looking forward to his guidance later this month.

I have been a Fusebase (formerly Nimbus) user since 2020, and it is the software I use most out of all my purchases from AppSumo. I use it internally in the office, with clients, and even my daughter uses it to organize her university resources. What I like most is that it seems like a system without limits. I'm sure I only use 50% of its capabilities, and they keep adding new features. That's another strong point, which has improved a lot in 5 years. I bought a Tier 1 now, without thinking too much about it, so I can access the new features. For me, it's a must-have.

Imagine Confluence in its versatile block / wiki style editing, and it's structured method of building beautiful docs... now couple that with actual useful data sources, and AI to help you build them quicker and more efficiently. Use your own data and expand on topics, research and generation of operating procedures in a flash. Fusebase is this.

Now imagine SharePoint with all those Word documents, synced to OneDrive (sharepoint essentially), with complicated pages to maintain, share permissions left and right, cumbersome, slow, confusing to users and isolated / fragmented from your customers. Then trying to use the useless CoPilot to generate part-useful snips of bullet point overviews of what you should work on.
Fusebase solves this with its SUPER-EASY portals, crystal clear internal vs. external information, and its ultra-refined AI agents that give you meaningful insight on your data. It can auto-transcribe videos, collate the information and generate business operation processes and SOPs. You can even create signature forms for your clients to fill in, and trigger workflow automations throughout the business with step functions.

It has fast become my go-to tool for any business I deal with, that know they need more than Confluence or SharePoint, but they can't quite describe what they want. I demo'd this to a client and they were blown away by it.

I have been using Fusebase on a daily basis for several years now (since 2021), and I can say without hesitation that it is one of the most profitable investments I have made for my business. This platform has transformed the way I work and interact with my customers.

What particuarly impresses me is:
The tool's versatility is remarkable. I was finally able to say goodbye to the jungle of applications I used to use. Now everything is centralized: my meeting notes, project documents, customer portals. The editor is fluid and intuitiv, with enough features to meet complex needs without being intrusive.
The built-in AI assistant is a real bonus. I save a lot of time by searching my notes archive directly rather than browsing through it manually. The AI even provides me with the exact sources, which is perfect for quickly finding an important detail.

A few points to note:
The abundance of features can seem intimidating at first. It took me a few weeks to really master the advanced aspects. Fortunaley, the documentation and videos provided by the team were very helpuf.

My verdict:
Fusebase is ideal for professionals who want to consolidate their tools and offer a professional customer experience. The value for money is excellent, and the team behind the product continues to innovate regularly. If you are looking for a reliable and scalable all-in-one solution, I highly recommend trying Fusebase.