My App Is Showing Wrong Data to Users
Your app is showing users the wrong information. Maybe User A is seeing User B's data, prices are wrong, order statuses are outdated, or the content displayed doesn't match what's actually in the database. This is confusing at best and a serious privacy violation at worst.
If one user can see another user's personal information, orders, or account details, you have a critical security and legal problem on top of a technical one. This needs to be fixed immediately.
Even if it's "just" wrong numbers or outdated information, it destroys user trust. People won't use an app they can't trust to show them accurate information, especially when money is involved.
Error Messages You Might See
Common Causes
- No data filtering by user — The app loads all data from the database instead of only the current user's data
- Caching showing stale data — The app saved an old version of the data and keeps showing it instead of fetching fresh data
- Data loaded in wrong order — The page displays before the data finishes loading, showing old or default values
- Database queries missing filters — The code that fetches data doesn't include a WHERE clause to filter by the current user
- Timezone or currency conversion errors — Dates, times, or prices are being converted incorrectly for different regions
How to Fix It
- Check if users can see each other's data — Log in as two different test users and verify each one only sees their own data. This is your highest priority
- Clear all caches — If your app caches data, clear the cache and see if the correct data appears
- Check the database directly — Open your database and verify that the actual stored data is correct. The problem might be in the display, not the data itself
- Add Row Level Security — If using Supabase, enable RLS policies so the database itself prevents users from accessing other users' data
- Test with fresh data — Create a brand new test account and add fresh data to see if it displays correctly
Real developers can help you.
Matthew Butler
Systems Development Engineer @ Amazon Web Services
Costea Adrian
Embedded Engineer specilizing in perception systems. Latest project was a adas camera calibration system.
Nam Tran
10 years as fullstack developer
Jaime Orts-Caroff
I'm a Senior Android developer, open to work in various fields
BurnHavoc
Been around fixing other peoples code for 20 years.
Antriksh Narang
5 years+ Experienced Dev (Specially in Web Development), can help in python, javascript, react, next.js and full stack web dev technologies.
Jared Hasson
Full time lead founding dev at a cyber security saas startup, with 10 yoe and a bachelor's in CS. Building & debugging software products is what I've spent my time on for forever
Anthony Akpan
Developer with 8 years of experience building softwares fro startups
Krishna Sai Kuncha
Experienced Professional Full stack Developer with 8+ years of experience across react, python, js, ts, golang and react-native. Developed inhouse websearch tooling for AI before websearch was solved : )
legrab
I'll fill this later
Describe what's wrong in plain English. No technical knowledge needed.
Get HelpFrequently Asked Questions
Is it illegal if users can see each other's data?
Yes, this is likely a violation of privacy laws like GDPR (Europe), CCPA (California), or other regional data protection regulations. If personal data was exposed, you may be required to notify affected users and potentially regulators. Fix this immediately.
My data looks correct in the database but wrong in the app. Why?
This means the problem is in how your app reads or displays the data, not in the data itself. Common causes include caching, timezone conversion, wrong database queries, or the app showing data before it finishes loading.