Zalo messaging app issues and errors
Zalo is experiencing significant issues with message notifications and synchronization, leading to users missing important messages and facing frustration with the app's reliability. Additionally, users report problems with lost messages despite having backup settings enabled, further exacerbating their dissatisfaction.
9 people in 9 posts across 2 sources · demand low, pain moderate, competition low
The pain
shares of 9 quoted postsWhat goes wrong, and for whom
- Who
- 9 people using Zalo
- What goes wrong
- Doesn't work44% of posts
- How bad
- 89% of posts are complaints · pain score moderate (48/100)
- Since
- 06 Sept 2026 → 19 Sept 2026
Is this a startup idea?
Not directly. These are complaints about a product or service people already use — the fix belongs first to that provider.
- Complaints are about
- Zalo
- Looking for something else
- 0% want an alternative · 11% ask the provider for a feature
- What the numbers say
- Almost nobody is looking for a different product — people want this provider to fix it, not a new option.
The pain — what people say
Their asks, who is writing, and the posts themselves
What people were doing
Every post behind this page, by what its author was doing — and when each one was written
- Complaint889%
- Request111%
Sources
9 signals · 2 sources
Evidence
Raw public posts behind this opportunity — click through to the original. 2 posts were held back as off-topic; all 9 still count toward the score.
Zalo — Bị lỗi zalo Bị lỗi khi thông báo tin nhắn mà kích vào lại không có thông báo
Doesn't workZalo không thèm gửi thông báo tin nhắn mới trong khi quảng cáo thì thông báo chả thiếu cái nào. vào mới biết có tin nhắn đã gửi mấy ngày trc nhưng không nhận được một thông báo gì. hại ngta mất việc. app tệ hại
Strong complaintZalo — Đồng bộ chậm và hay bị lỗi — Đồng bộ tin nhắn giữa web và điện thoại bắt phải mở điện thoại, tính năng ngu ko thể tả. Hạ tầng đồng bộ thì chậm rì
Doesn't workZalo — Zalo bị lỗi thông báo tin nhắn người lạ Có ai bị lỗi không thông báo tin nhắn người lạ không. Vào zalo vẫn thấy tin nhắn nhưng ko có chuông
Doesn't work…hắn từ lúc nào r mà 5 10 phút sau mình mới nhận được tin nhắn là sao. Tin nhắn xem đọc cũng báo là chưa xem, khó chịu😡
Frustrated
Market and score
Products already there, how the score moved, and what it is made of
Opportunity history
Every score change is stored as a snapshot — click a sub-score to overlay it
Why did it move?
Score unchanged at 50.9 · 23 Sept 2026, 20:00 → 21:15 UTC
How the score was measured39 measured values behind the seven sub-scores · each shows the value, then the points it earned out of 100Show ↓Hide ↑
Questions about this idea
- Is Zalo messaging app issues and errors a startup idea?
- Not directly. These are complaints about a product or service people already use, and the fix belongs first to that provider. The page shows what is frustrating users and how badly — not an open market to start a company in.
- How many people have this problem?
- 9 different people described it independently, in 9 mentions, the earliest from 06 Sept 2026 and the most recent from 19 Sept 2026. The quotes, with dates and links to the originals, are in the Evidence section.
- Is this problem getting worse?
- Current status: emerging — newly appearing in the evidence. Momentum is 80/100, measured as how often it is mentioned recently compared with before.
Adjacent opportunities
Nearest neighbours by embedding similarity
Discussion
Written by readers. Not part of the evidence above and not counted in any score.
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If you have run into this problem, what did you try?