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The Most Popular App Store Keywords of 2021

by ,  ASO Expert at AppTweak App Market Insights

What were the most searched terms on the App Store in 2021? We looked at 6 of the largest app markets (United States, United Kingdom, France, Germany, Spain, and India) to find out which keywords reached the highest search volumes last year.


The most popular keywords are defined as searches that received the highest possible search volume scores at some point last year. The volume score is a number between 5 and 100, calculated and directly received from Apple. The higher the search volume, the more popular the keyword and the higher the frequency of searches for that term on the App Store.

  • instagram
  • mario kart
  • snapchat
  • youtube
  • zoom
  • among us
  • faceapp
  • facebook
  • disney plus
  • widgetsmith
  • bumble
  • mario-kart
  • sleep sounds
  • tik tok
  • tik-tok
  • call of duty
  • disney
  • free games
  • messenger
  • parler

The top 20 most searched keywords on the App Store in 2021 were actually the same as in 2020. Not only did these searches reach the highest search volume scores, but their popularity is also consistent.

The table below shows the 20 most popular keywords with the highest search volumes recorded for the United States, United Kingdom, France, Germany, Spain, and India.

United States   United Kingdom   France   Germany   Spain   India  
Keyword Max Volume 2021 Keyword Max Volume 2021 Keyword Max Volume 2021 Keyword Max Volume 2021 Keyword Max Volume 2021 Keyword Max Volume 2021
instagram 100 faceapp 100 faceapp 100 corona warn app 100 among us 100 face app 100
mario kart 100 house party 100 instagram 100 corona-warn-app 100 faceapp 100 instagram 100
snapchat 100 instagram 100 mario kart 100 covpass 100 instagram 100 pubg 100
youtube 100 mario kart 100 snapchat 100 disney 100 houseparty 99 tik tok 100
zoom 100 snapchat 100 vpn 100 face app 100 mario kart 98 bgmi 99
among us 99 vpn 100 scanner gratuit 99 instagram 100 zoom 98 ludo king 99
faceapp 99 disney 98 disney 98 snapchat 100 disney 97 fau g 96
facebook 98 free vpn 98 tous anti covid 98 whatsapp 99 radar covid 96 signal 95
disney plus 96 zoom 98 plato 96 widgetsmith 99 telegram 95 whatsapp 95
widgetsmith 96 face app 97 signal 96 casino 98 whatsapp 95 zoom 94
bumble 95 facebook 96 stop covid 96 among us 97 scanner 94 arogya setu 93
mario-kart 95 slots 96 tik-tok 96 houseparty 97 skype 94 facebook 93
sleep sounds 95 whatsapp 96 facebook 95 luca app 97 tik tok 94 pubg mobile 93
tik tok 95 casino 95 tik tok 95 mario kart 96 tik-tok 94 hotstar 92
tik-tok 95 roblox 95 widgetsmith 95 qr code scanner 96 parchis 93 snapchat 92
call of duty 94 vpn free unlimited 95 among us 94 qr-code-scanner 96 snapchat 92 call of duty mobile 91
disney 94 among us 94 messenger 94 tinder 96 spotify 92 call recorder for iphone free 91
free games 94 cheltenham festival 94 scanner 94 clubhouse 95 facebook 90 google pay 91
messenger 94 love island 94 vpn gratuit 94 qr code scanner free 94 fortnite 90 tiktok 91
parler 94 messenger 94 whatsapp 94 scanner-app 95 call of duty 89 youtube 91

While the top 25 most searched keywords in the US remained unchanged compared to previous years, the most popular searches in the 5 other markets experienced a few shifts.

As expected, most of the most searched keywords in each country were brand names, indicating the apps that dominated the App Store in each country. A few of the highest volume searches were for generic keywords in each country:

  • USA - 2 searches: “sleep sounds” and “free games”
  • UK - 5 searches: “vpn,” “free vpn”, “slots”, “vpn free unlimited”, and “cheltenham festival”
  • France - 5 searches: “vpn”, “scanner gratuit”, “stop covid”, “scanner”, and “vpn gratuit”
  • Germany - 4 searches: “qr code scanner”, “qr-code-scanner”, “qr code scanner”, and “scanner-app”
  • Spain - 2 searches: “telegram” and “scanner”
  • India - 1 search: “call recorder for iphone free”

Compared to previous years, there is roughly a similar distribution of branded and generic keywords among the most searched terms. We notice the increase in searches for VPNs, as concerns for online security and privacy have grown and data breaches have dramatically increased over the past year.

Overall, the top keywords are dominated by social media and networking apps such as Instagram, Houseparty, Snapchat, TikTok, or Facebook. Zoom is also still very popular as many continue to work from home.

The COVID-19 pandemic is still impacting daily lives worldwide and the implementation of sanitary passes in many countries in 2021 is also reflected by the popularity of COVID-19 contact tracing apps, like Arogya Setu in India (11th most searched term), Tous Anti Covid in France (8th most searched term), or Corona-Warn-App in Germany (1st and 2nd most searched terms). Searches for QR code scanning apps are also most likely another consequence of the global pandemic.

The third main category of top searches in 2021 was entertainment apps and games. “Mario kart” was among the top 5 most popular searches in the US, the UK, France, and Spain in 2021; in India, the release of Battlegrounds Mobile India, also called “bgmi”, was the most significant change in the most popular searches on the market. Disney+ is also among the top searches in several of these markets.

Expert Tip

The top 20 most popular keywords contain many branded terms. Using competitors’ trademarked keywords in your metadata can be tempting to drive a lot of traffic, but this is not allowed on the App Store and not recommended to include in your keyword field.

Want to unlock more insights? Have a look at the full list of the 500 most popular keywords of 2021 for the past few years:

Top 500 most popular keywords of 2021 -US-UK-FR-DE-ES

Top 500 most popular keywords of 2020 -US-UK-FR-DE-ES

Top 500 most popular keywords of 2019 -US-UK-FR-DE-ES

Top 1000 most popular keywords of 2018 -US-UK-FR-DE-ES


Want to discover the keywords people use when searching for your app or competitors’ apps? Learn more about our App Keyword Research Tools and sign up for a 7-day free trial.

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by ,  ASO Expert at AppTweak

Agathe is an ASO Expert at AppTweak. Her goal is to help you boost your app’s visibility and downloads. Always keen on learning, she is fond of tech, video games and history.