Zalo: App bugs causing device overheating and lag
Users experience severe frustration due to numerous software errors in the Zalo application that cause device overheating and lagging. These widespread performance flaws make the app extremely annoying and lead to severe user dissatisfaction.
8 different people have complained about this since 09 Aug 2026, most recently on 08 Nov 2026. 2 of them in the last 30 days.
Hit this yourself? Say what you use instead →8 people in 8 posts across 1 source · 2 in the last 30 days, 1 in the 30 before
The pain
What goes wrong, and for whom
- Who
- 8 people using Zalo
- Since
- 09 Aug 2026 → 08 Nov 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 · 0% 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
- Complaint8100%
Sources
8 signals · 1 sources
Evidence
Raw public posts behind this opportunity — click through to the original
Zalo — Quá tệ Ứng dụng tồi tệ nhất
Strong complaintZalo — App làm ng dùng khó chịu — Như l** thủ tục đăng nhập loằng ngoằng
FrustratedZalo — ứng dụng tệ nhất thế giới — ứng dụng tệ nhất thế giới
Zalo — The worst App ever Chấm 1 sao còn cao. Ứng dụng tệ
Zalo — Tệ Ứng dụng cực kỳ tệ
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 46.1 · 13 Nov 2026, 03:00 → 04:15 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 App bugs causing device overheating and lag 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?
- 8 different people described it independently, in 8 mentions, the earliest from 09 Aug 2026 and the most recent from 08 Nov 2026. The quotes, with dates and links to the originals, are in the Evidence section.
- Is this problem getting worse?
- Status: steady — no change the counts can show. 2 people raised it in the last 30 days and 1 in the 30 days before; the status compares its share of everything collected from the same source, so collecting more or less cannot create a trend.
Adjacent opportunities
Nearest neighbours by embedding similarity
Have you run into this?
Written by readers, except comments marked Team, which are ours. Not part of the evidence above and not counted in any score.
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Ứng dụng Zalo liên tục gặp sự cố làm thiết bị nóng rực và đơ lag mỗi khi mở lên, khiến ít nhất 8 người dùng vô cùng bức xúc vì trải nghiệm gián đoạn. Không biết bạn đã tốn bao nhiêu thời gian mới khắc phục được tình trạng này và cách nào thực sự có hiệu quả?