Sponsored by Decodo
How to scrape app store and marketplace reviews
App stores and marketplaces guard their review sections fiercely
Who doesn’t love reviews? They tell you what people love and aren’t all that crazy about, which benefits both the consumers and the businesses at hand. So, it’s no surprise that the latter frequently turn to this feedback to better comprehend the preferences of their customer base and how their competitors are tripping up.
That said, there is one huge difference between knowing where to find relevant insights and obtaining them. App stores and marketplaces guard their review sections fiercely because they know full well what treasures of information lie within them. This means harvesting it requires focusing on three key elements:
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Aim for country-specific data
The first thing you need to do is understand that app stores and marketplaces (particularly global ones) are fragmented into distinct regional storefronts. A user in New York will see a completely different set of reviews and ratings than a user in Prague because these platforms automatically tailor their displayed content based on the geographic location of the user browsing.
As you can surely imagine, such localization creates a pretty big blind spot. If you only scrape reviews from a single region, you’re missing out on how your product or a competitor’s app is actually performing across the rest of the globe.
What’s more, circumventing these regional barriers using standard data center servers or basic cloud environments won’t get you around the world. Security filters will instantly notice the geographic mismatch, then block the request or redirect your scraper to a generic global splash page. In some cases, you may end up with distorted data that doesn't reflect the actual localized review feed.
Put differently, your network identity must match the region you’re targeting, and that calls for country-specific residential proxies to do the work. That way, you can choose exactly where your request emerges down to the country and city level. In case you need to analyze customer sentiment in a precise market, you specify an equally precise household IP to do so.
What happens is that the target website looks at the incoming connection, sees an ordinary local consumer browsing from their home internet connection, and opens up the localized review feed. Through residential IPs, your scrapers can easily jump from country to country, collecting unmanipulated regional data without a shred of doubt from the target’s geo-based defenses.
Be careful about frequent refreshes
Another great thing about reviews is their unending supply. It doesn’t take more than a new feature or an update to prompt a new wave of commentary, which is to say that review scraping is an ongoing affair. If you only do the rounds once a week, you might completely miss the early warning signs of a product/service-related satisfaction and/or crisis.
All of it is to say that your scraping needs to run on a schedule of frequent refreshes. Yet, hitting the same pages every hour is risky, to say the least.
As mentioned before, app stores and marketplaces keep a close eye on traffic patterns to catch automated scrapers. If they even sniff the same IP address hammering the review endpoint of a specific product page throughout the day, your scraper will get flagged as a bot and banned, no matter how polite it behaves.
There’s another thing. Many of these platforms deploy advanced caching mechanisms that will serve you old data from their cache (rather than the real-time review feed) if they detect repetitive requests from an iffy connection. Just like that, your frequent refreshes become like a broken pencil - pointless.
Hence, your crawlers need to do a bit of a switcheroo and change up their network identities all the time. A rotating residential proxy network solves this problem by automatically swapping your IP address at regular intervals or after every few requests.
When your script executes its hourly refresh loop, each connection appears to come from a different home internet user. To the website's security, it simply looks like a natural surge of separate people checking out the review section, allowing your crawlers to safely scoop up the most up-to-date feedback.
Separate the high request volume from your network footprint
The situation becomes even more intense when you try to scale your operation (as you should). Monitoring a myriad of apps or products simultaneously means extracting star ratings, text strings, timestamps, usernames, version histories - you name it. And it all happens across millions of individual review pages.
High request volume like that can quickly overwhelm standard scraping configurations. It doesn’t help that large-scale stores set rate limits that function as digital versions of speed traps. Opening up hundreds of parallel connections from a rather narrow range of IP addresses to download data as fast as possible will inevitably lead to the anti-bot system triggering a total lockdown on your network block.
You have to detach your request volume from your network footprint. Once again, a broad residential proxy pool comes in handy.
It provides the perfect cover for your covert dealings, since you can spread the load over a global footprint of home connections. Distributing your scraping requests across thousands of unique residential nodes provided by platforms like Decodo almost guarantees that no IP address ever performs enough actions to trigger a rate-limiting firewall.
In fact, the high-volume data collection effort is thinned out so nicely that it blends right into the everyday web traffic of the site in question, raising no suspicion whatsoever.
For the most part, that’s all there is to it. Future efforts at sentiment analysis will belong to businesses that craft flexible and localized data pipelines. With increasingly rigorous security mechanisms in place supported by AI, there may be no other “sure-fire” way to avoid blocks and corrupted insights while getting those sweet, sweet insights into user behavior and market shifts.
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Sead is a seasoned freelance journalist based in Sarajevo, Bosnia and Herzegovina. He writes about IT (cloud, IoT, 5G, VPN) and cybersecurity (ransomware, data breaches, laws and regulations). In his career, spanning more than a decade, he’s written for numerous media outlets, including Al Jazeera Balkans. He’s also held several modules on content writing for Represent Communications.
