App reviews provide valuable customer feedback, influence people to download, and even impact rankings in app stores, like Google Play. However, most people aren’t likely to leave a review. If they do there’s a good chance they’re pissed about a bug or missing feature.
So how do you get more reviews and higher ratings for your app?
My team and I tackled this problem for our Kodak Gallery Android app. Here’s how we went about it. What we learned will surprise you.
BACKGROUND
Our motivation for tackling this was two-pronged:
1. We had low ratings in the Android Market / Google Play. We had quietly released an alpha version of the app for testing purposes. It crashed a lot and got low ratings from people that stumbled across it in the market. When we released v1.0 the reviews were good; however, ratings don’t reset in with each upgrade in Google Play so we were stuck with a low “lifetime rating” (~3.0 out of 5.0).
2. Our Google Play ranking wasn’t as high as we thought it should be. We were stuck around #50 in the free photo category rankings despite some healthy download numbers. Like with Google search results, Google Play rankings are a black box but supposedly the number and quality of reviews is part of the ranking algorithm.
We felt if we had more reviews and better ratings our app would be more attractive to prospective users and do better in the market rankings.
THE TEST
The initial plan was to simply add a "rate this app" prompt in the app. This is a common tactic employed by lots of apps, but we wanted to see if it actually worked.
However, we were concerned we would get more reviews but they might not be very good. Ron, our newly crowned ratings guru, had the idea to test another version where we only prompted people to rate the app in teh market if we knew really the app.
Here's what our 3 test cells looked like:
1. Default. No user prompts to rate the app
2. Market Prompt Only. Users see a prompt asking them to rate the app in the Google Play market.
3. Local Prompt. Before asking users to go the market to rate the app we present a local prompt to rate the app. If the user selects "Love it!" or "Like it" they get the market prompt. People selecting "Not crazy about it", "Hate it", or Cancel don't get the market prompt.
Local Prompt Market Prompt


We rotated the test cells every day. Day 1 was default, Day 2 local prompt, Day 3 market prompt, and then repeat. We cycled this for 3 weeks to normalize for any influence the day of the week might have on people's responses.
Once people received the local or market prompts they did not see them again. "Later" on the market prompt in this case meant a future date that we hadn't determined. Like an afterschool special, no meant no.
RESULTS
We measure the results based on two success metrics:
1. Number of reviews per thousand visitors (RPMV). This eliminated the the impact the number of visitors had on reviews since more visitors = more prompts.
2. Average rating. Google Play ratings are based a 1-5 star rating.
Here are the cumulative results for the 3-week test that ran in April.
Number of Reviews

Winner: Local Prompt Screener
This was a landslide. The local prompt had 56% more reviews than the market only prompt while the average ratings were the same at 4.5. In each test cycle the local prompt had 17%-90% more reviews per visitor than the market only prompt so the results weren't affected by a big day.
An interesting sidenote is that the 14 days we ran the local and market prompt accounted for just under 30% of total reviews and increased the average overall rating from around 3.8 to 4.3.
Rankings Impact
The ranking in the free photo category jumped from the low 50's to the low to mid 40's.
THOUGHTS
If you're like us, these results are somewhat surprising.
We predicted that the Market Only prompt would drive the most reviews while the Local Screener would have fewer reviews but a higher average rating because we were filtering for people that really liked the app and making them go through more steps, which usually leads to lower conversion.
As you can see above, the local prompt had significantly more reviews. Why could this be?
1. People were invested. The local prompt was a super easy way to participate and once people did they had some stake in the game. When we then prompted them to rate the app in the market we were asking them to do the same thing they just did, but in a different place.
2. People really like the app. It turns out people really liked the app and we weren't filtering as many people as we expected. While 52% of people chose Cance", 94% of those that did rate the app locally said they "Love it" or "Like it".
The ~10 spot jump in the app rankings indicates the better reviews had an impact on the rankings but there could be other factors as well, like photo sharing seasonality. While it's hard to say if the increase reviews and higher rating affected the ranking algorithm we did move up and that was one of our goals so that makes us feel warm and fuzzy.