The useful question is not whether a web app is more modern than Excel. It is whether either tool suits the job your team is asking it to do.
Excel remains excellent for modelling, analysis and quick changes made by a small number of confident users. A hosted web app is usually stronger when a spreadsheet has become the place where several people run a repeatable business process. That might be allocating jobs, approving costs, tracking orders or collecting returns from regional teams.
The difference becomes clearer when you look at an ordinary working day rather than a list of software features.
One file or one shared service?
An Excel workbook is a document. Even when it sits in SharePoint or OneDrive, the working model still centres on a file, its sheets and its formulas. Modern co-authoring makes that perfectly workable for many teams.
A hosted web app is a shared service reached through a browser. People sign in and work with the same central data. They do not need to download a master copy, and the organisation does not need to decide whose attachment is current. Hosting, routine updates and an agreed level of support are handled as part of the service.
That distinction matters more as the number and variety of users grows. Two colleagues updating a straightforward tracker may be well served by Excel. Ten office staff, three managers and a group of field workers trying to update the same process from different locations have a different need.
How each option handles day-to-day work
Working together
Excel co-authoring is a sensible first step when everyone can use the same shared file and the workbook is not unusually complex. It keeps a familiar tool and avoids the cost and disruption of replacing it.
Problems return when people work offline, email copies to outside contributors or make structural changes at the same time. The practical consequence is not merely untidy filenames. Staff spend time reconciling differences, and a decision may be made from an out-of-date figure.
In a web app, each authorised user sees the current record. A manager in the office can review a submission made by a colleague on a phone without waiting for a workbook to be returned. This does depend on a usable internet connection, so Excel may still be the better choice where offline working is essential.
If attachments are the main source of trouble, the steps in how to replace emailed spreadsheet copies may solve the problem without a rebuild.
Deciding who can see and change what
File permissions generally decide who can open or edit a workbook. Sheet protection and hidden columns can discourage accidental changes, but they are not a good way to divide sensitive information between roles.
A web app can give each person a more precise view. For example, a contractor might submit hours without seeing charge-out rates, while a finance manager can review rates but not alter the original timesheet. The operational benefit is that the same process can include more people without distributing all of its data to all of them.
Permissions still need thoughtful design and regular review. A web app does not make weak access decisions safe by itself.
Following work through a process
Excel can represent statuses and approval dates, but the workbook relies on people knowing what to do next. Reminders often happen by email or in meetings.
A web app can guide a record from draft to review and approval, show outstanding work and notify the next person. It can also prevent an approval until required information is present. For a hypothetical property maintenance team, that could mean an engineer submits a completed visit, a supervisor sees it in a review queue, and accounts receives only approved items. The point is not automation for its own sake; it is fewer missed handovers.
Understanding what changed
For low-risk work, Excel's version history and a well-managed change log may be enough. Where a process involves prices, personal information or formal approvals, the business may need a clearer answer to who changed a record, when they changed it and what was approved.
A web app can keep that history alongside the record. This supports investigations and internal checks, although it does not guarantee compliance with any particular regulation. The organisation still needs suitable policies, retention rules and oversight.
Making changes and getting support
Excel is fast to adapt. A capable user can add a column or amend a formula immediately, which is particularly valuable while a model is still evolving.
The same freedom can be a weakness in a settled operational process. A small formula change may affect every future calculation without anyone reviewing it. Changes to a web app are normally requested, checked and released in a controlled way. They take longer, but there is a clearer support route when something goes wrong or the process needs to evolve.
The costs are shaped differently
Excel may appear nearly free because the organisation already pays for Microsoft 365. The full cost also includes staff time spent maintaining the workbook, helping users, correcting mistakes and preparing management information.
A hosted web app has a visible build or set-up cost and an ongoing service charge. It may also require training and changes to established routines. In return, responsibility for keeping the service running and supporting agreed changes is explicit. Current service options are set out on the pricing page.
Neither is automatically cheaper. A modest workbook used safely by three people would be difficult to justify replacing. A critical workbook that absorbs several hours of reconciliation every week may have a sizeable cost despite a small software bill.
A practical way to choose
Look at one business process and gather evidence for a month. Record how many people update it, how often copies conflict, how much time is spent producing reports, which information should be restricted and what happens when the owner is absent. Include real incidents rather than general frustration.
Keep or improve Excel when the work is mainly analysis, users are few, requirements change often or offline access is important. Consider a hosted web app when central data, simultaneous access, role-based permissions, a reliable history and guided handovers are becoming necessary.
The answer can be a mixture. Many businesses move data entry and approvals into an app while retaining Excel for forecasts and detailed analysis. The guide to turning a spreadsheet into a web app explains why preserving Excel for those strengths is often sensible.
If the evidence is mixed, a restrained next step is to request an assessment of the workbook and the process around it. The recommendation should be just as capable of saying “improve Excel” as “build a web app”.