Your competitors' customers have already written your product brief. Every one-star review describes a problem they paid to solve and did not get solved. Read enough of them and the same complaints repeat, and a repeated complaint is a gap in the market you can point to. This guide shows how to collect, sort and use them.
Where to find competitor reviews
| Business type | Where reviews live |
|---|---|
| B2B software | G2, Capterra, TrustRadius, Reddit |
| Mobile apps | Apple App Store, Google Play |
| E-commerce and consumer brands | Amazon, Trustpilot, the brand's own product pages |
| Shopify and platform apps | Shopify App Store, WordPress plugin directory, Chrome Web Store |
| Local businesses | Google Maps, Yelp, Facebook, the Better Business Bureau |
Which reviews to read
- Three-star reviews first. They are the most balanced: the customer liked enough to stay but names exactly what fell short.
- Then one- and two-star reviews. Skip the ones about a single bad day or delivery; keep the ones about the product or service itself.
- Recent reviews over old ones. A complaint from three years ago may be fixed. Sort by newest and read the last twelve months.
- Five-star reviews, briefly. They tell you what customers value most, which you must match.
Sort complaints into themes
Copy each complaint into a sheet with the competitor, the date, the source link and the exact sentence. Then tag each one with a theme:
- Missing feature: “no way to export to QuickBooks”
- Usability: “took our team two weeks to set up”
- Price and billing: “price doubled at renewal”
- Support: “no reply for five days”
- Reliability: “syncs fail every week”
- Fit: “built for big companies, too much for us”
Keep the exact quote. “Customers want better support” is an opinion; “No reply for five days”, with a link, is evidence you can show a co-founder or an investor.
Find the patterns that matter
Count how often each theme appears, and across how many competitors:
| Pattern | What it means |
|---|---|
| Same complaint across several competitors | A market-wide gap. The strongest opening. |
| Complaint about one competitor only | A reason their customers might switch to you. |
| “Too complex / too expensive for us” | An underserved segment: smaller customers. |
| Complaint that is growing over time | A competitor getting worse, often after a price rise or acquisition. |
Turn complaints into decisions
- Product: build the answer to the most repeated complaint, and say so on your homepage.
- Positioning: write your headline as the opposite of their top complaint (“Set up in ten minutes”).
- Sales: give your team the quotes; prospects often recognize their own frustration.
- Pricing: if “price doubled at renewal” recurs, a price lock is a feature.
These openings feed directly into finding a gap in the market.
Pitfalls
- Loud minorities: one angry reviewer posting five times is one data point.
- Fake or incentivized reviews: be skeptical of bursts of identical praise.
- Complaints nobody would pay to fix: check that the problem matters enough to change a purchase.
- Doing it once: review themes change as competitors ship. Re-read quarterly, or monitor continuously; see how to monitor competitor websites.