The most dangerous thing you can do in a Glide app is use a filter to hide rows you don't want users to see. It looks like security. It isn't.
Glide's Row Owners feature is the actual access control. Filters are cosmetic. If you skip Row Owners and rely on filters, every signed-in user in your app can read every row in your data source, including rows that are filtered out of their view.
TL;DR
Glide is a safe platform: the company handles infrastructure, your data doesn't train AI models, and the product has a reasonable security track record. The real risks are configuration mistakes: missing Row Owners (filters don't restrict data access), Google Sheets left on public sharing from development, and apps set to "Anyone" access when they handle user-specific data. Get those three settings right and Glide is appropriate for most non-healthcare, non-financial apps.
What Glide Is
Glide (glideapps.com) creates mobile and web apps from Google Sheets, Airtable, Excel, or Glide's own Big Tables storage. You configure screens, components, and logic in Glide's visual editor without writing code. The app runs on Glide's hosting and connects to your data source in real time.
Use with CautionThe Row Owners Problem
Row Owners is Glide's record-level security mechanism. You designate a column in your table as the "owner" column (it must contain an email address). Glide then filters server-side so each signed-in user only receives rows where their email matches the owner column.
Without Row Owners set on a table, Glide sends all rows to all signed-in users. The user's device receives the full dataset, even if your screens only display a subset.
Critical: UI filters and visibility conditions hide rows from the screen but do not prevent the data from being transmitted. A user who intercepts network traffic or inspects the app's data layer sees everything, filter or no filter.
How to Verify Row Owners is Set
In Glide's editor:
- Open Data > select your table
- Click the column that holds the user's email (e.g.,
User EmailorOwner) - Check the column settings for the Row Owner toggle
- If it's off, all rows are visible to all users
Do this for every table that contains user-specific data. A multi-table app needs Row Owners checked on each table independently.
The Google Sheets Sharing Risk
Glide reads data directly from Google Sheets via a service account. But the sharing permissions on the Sheet itself are separate from Glide's access controls.
During development, founders commonly set the Sheet to "Anyone with the link can view" so collaborators can check the data. That setting is easy to forget. If it stays in place after launch, anyone who finds the Sheet URL (it's a google.com URL, discoverable via search or referrer leaks) can read the raw data regardless of what Glide's app settings show.
We see this consistently in apps connected to Google Sheets: the Glide app has sign-in required and Row Owners set, but the underlying Sheet is still on public sharing from when the founder shared it with a designer six months ago.
Fix: In Google Sheets, go to Share > Change to restricted. Glide's service account retains access; your end users never touch the Sheet directly.
App-Level Access Settings
Glide's app access setting controls who can open the app at all:
| Setting | Who Can Access |
|---|---|
| Anyone | No login required. Any visitor can open the app. |
| Anyone with email | Users provide an email but it's not verified against a list. |
| Allowed email list | Only specific emails can sign in. |
| Google domain | Anyone with a specific Google Workspace domain. |
| Password | Single shared password. Not per-user. |
"Anyone" is appropriate for public-facing tools with no user-specific data, like a restaurant menu or a product catalog. If your app shows any data tied to a specific user, it should require sign-in. We regularly see Glide apps with user tables, order history, and contact forms set to "Anyone" access because the founder left the default in place.
Watch out: "Anyone with email" captures an email address but does not verify it against your list. Users can enter any email and get access. It's not equivalent to an allowed list.
Glide Tables vs. Google Sheets
Glide Tables is Glide's own hosted database, an alternative to Google Sheets. Row Owners and access controls work the same way in Glide Tables as in Sheets, so switching to Glide Tables does not remove the Row Owners requirement. The main security benefit of Glide Tables is that there's no Google Sheet to accidentally leave on public sharing.
Security Checklist for Glide Apps
What Glide Handles for You
Glide as a platform does the following without any action on your part:
- HTTPS everywhere: All apps run on HTTPS. No configuration needed.
- Infrastructure security: Glide runs on Google Cloud. They handle OS patching, scaling, and availability.
- No AI training on your data: Glide states your data doesn't train Glide's AI features.
- SOC 2 compliance: Glide maintains SOC 2 Type II certification.
These are solid baseline controls. The platform isn't the problem. The defaults that ship with new tables and new apps are where things go wrong.
When Glide Makes Sense
Glide is a reasonable choice for:
- Internal team tools where everyone using the app should see all the data
- Public-facing apps with no user accounts (directories, catalogs, schedules)
- Simple personal-use apps with no sensitive data
It requires more configuration care for:
- Apps where each user sees only their own records (Row Owners is mandatory)
- Apps collecting payment info, health data, or anything regulated
- Multi-tenant setups where users must be fully isolated from each other
Is Glide safe for storing user data?
Glide is safe as a platform, but your configuration determines whether user data is actually protected. The two non-negotiable settings are Row Owners (to restrict which user sees which row) and a sign-in requirement. Without both, all rows are visible to all users or all visitors.
What is the difference between a Glide filter and Row Owners?
A filter hides rows from the UI but does not restrict data access at the data layer. Any user who inspects network requests or uses Glide's API can still read filtered-out rows. Row Owners restricts access server-side: Glide only returns rows where the Row Owner email matches the signed-in user's email.
Is my Google Sheet data safe in a Glide app?
Only if your Google Sheet's sharing settings are restricted. If the underlying Sheet is shared as "Anyone with the link can view," your data is readable by anyone who finds the Sheet URL, completely independent of your Glide app's settings. Change it to Restricted after development.
Does Glide train AI models on my data?
Glide states it does not train AI models on your app data. Data stored in Glide Tables and connected sources stays within your workspace and is not shared for model training.
Is Glide HIPAA compliant?
Glide does not offer HIPAA BAAs on standard plans. Enterprise plans can accommodate certain compliance requirements, but you must contact Glide's sales team. Do not store PHI in Glide without confirming compliance coverage directly.
Built on Glide?
CheckYourVibe scans your connected backend for exposed API keys, missing auth on endpoints, and other gaps that Glide's own checks don't cover.