PERFORMANCE INSIGHT

HeadSpin Proposes Speed Optimizations as Ideal Bilingualism for Beelinguapp

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Overview and Methodology For Our Analysis

Industry:

Language

Device/Network/Location:

iPhone XS Max/ Orange / Paris

Products Used:

HeadSpin Connected Intelligence Platform

Recommendations:                                                       

  • Review multiple 3rd party SDKs that cause slowdown in launch time
  • Ensure that immediate content is loaded first before future content.
  • Optimize connection reuse
  • HeadSpin analyzed the latest version of the Beelinguapp iOS app on a real iPhone XS Max in Paris, on the Orange network.
  • NO SDK, code change or instrumentation was needed to run the remote performance sessions.
  • HeadSpin’s AI engine sifted through network traffic, client-side metrics, and videos of the test execution to find areas of poor user experience and performance bottlenecks.
  • Recommendations were provided for every issue that was surfaced.
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User Reviews

Beelinguapp is doing very well overall in terms of user ratings on the App Store.

HeadSpin looked at Beelinguapp reviews in the App Store and found some users struggling with functional issues and technical errors.

Beelinguapp ratings is currently 4.6/5 on the App Store.

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Insights and Recommendations

HeadSpin’s proprietary AI technology analyzes and prioritizes the core issues impacting critical user journeys. Using computer vision techniques to quantify blank screens, time to interact, loading time, loading or buffering animations, and content quality, our AI models can automatically diagnose server-side issues whether they arise from infrastructure deployment issues, poor performance, or API errors. For a custom analysis of your app, request a Performance Insight report from HeadSpin. 

HeadSpin Performance Session (link)

EXECUTIVE SUMMARY OF TOP PERFORMANCE AREAS

Analysed KPIs

Launch Time   5 sec  
   Start Learning   13 sec  

The sample performance analysis focusing on a typical critical user journey for Beelinguapp. Following are the top performance areas that can be optimized for Beelinguapp.

Slow Server The server response time for one or more api calls took more than 500ms which is considered to be slow. In particular calls made to api.kumulos.com had longer response times and this is where most of the performance improvements should take place.

Connection Reuse On a number of occasions the app didn’t reuse already opened TCP connections which adds additional overheads.

HTTP Errors Some HTTP requests returned errors one of which was due to a call to HelpShift which should be further investigated throughout the application.

The app can benefit from further detailed analysis into the different performance affecting issues which Headspin can assist with. One example is how does the app perform at different times of the day in particular during peak times? How does the app perform on different devices with different specs, or in different cities?

We have analyzed the overall performance during the below key journeys in order to identify any bottlenecks or performance issues.

A) First Launch

   Time to first interaction      5 sec   

The time it takes for your users to start interacting with the app is of great importance and should be minimized as much as possible. We have used the below screen as our control screen to measure the the Time to First Interaction (TTI).

We have encountered the below issues that contribute to the increased TTI.

Connection Reuse

   Connection Reuse Impact Time     328 ms  

TCP connections come with their own overheads, everytime a connection is opened those overheads add to the time of the task being executed.

The app created multiple connections in close succession to the same host during launch.

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HEADSPIN RECOMMENDATION: Check the keep-alive settings on the host server. If keep-alive connections aren’t enabled, or if the keep-alive timeout is set too low, client connections will be terminated prematurely, resulting in unnecessary TCP/TLS handshakes.

Reusing already established connections can reduce the overall TTI by 328ms.

Slow Server

   Slow Server Impact Time      392 ms  

The application waited longer than 500 ms to receive the first byte in HTTP responses from this host.

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HEADSPIN RECOMMENDATION: The slower than optimal response time could be due to a number of reasons, long server side operations, serving resources from the incorrect edge of a CDN.

We recommend that you investigate the above host and try to reduce the overall time to be within the optimal 500ms response time by doing so Beelinguapp can shave off approx 392ms of the overall TTI.

   Unoptimized Resource (text)     245 ms

 

The application downloaded the below resources as uncompressed plain text.
Download Time (ms)Size (bytes)Content TypeURL
245247222text/plainLink
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HEADSPIN RECOMMENDATION: Any substantial text resources should be compressed. Consider enabling gzip compression on your webserver or CDN to reduce the size of content delivered over the network by 70 to 90%. The overall TTI can be further reduced by 245ms.

B) Start learning

   Time taken to Start Learning      13 sec   

We have analysed how long your users have to wait until they start their learning journey as this is quite important and can affect your conversion and retention metrics greatly.

We have excluded the time for any user input steps and only included loading times resulting from api calls and network performance.

We have encountered the below issues that contributed to the increased “Start Learning” time.

Connection Reuse

   Connection Reuse Impact Time     1.2 sec  

TCP connections come with their own overheads, everytime a connection is opened those overheads add to the time of the task being executed.

The app created multiple connections in close succession to the same host during launch.

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HEADSPIN RECOMMENDATION: Check the keep-alive settings on the host server. If keep-alive connections aren’t enabled, or if the keep-alive timeout is set too low, client connections will be terminated prematurely, resulting in unnecessary TCP/TLS handshakes.

Reusing already established connections can reduce the overall time to “Start Learning” by 1.2sec.

Slow TLS

   Slow TLS    1.1 sec  

 

Your application waited longer than 300 ms to complete TLS handshakes with these hosts.

TLS handshakes add latency to requests due to additional round trips between the device and server. Consider moving your servers closer to users or using a CDN to cut down on round trip time.

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HEADSPIN RECOMMENDATION: Consider enabling keep-alive to reuse established connections. Examine the costs of additional overhead incurred by any domain sharding optimizations. Consider caching strategies to reduce or eliminate handshake round trips.
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How to Work With HeadSpin

HeadSpin Powers Flawless Mobile App Performance

HeadSpin’s state-of-the-art Digital Experience Intelligence Platform™ will empower your engineering teams to:

  • Execute automation tests on real carrier-enabled devices worldwide
  • Discover performance bottlenecks
  • Collect and visualize your performance data
  • Seamlessly integrate with your CI/CD workflow
  • Monitor every critical user flow of your mobile experience
  • Pinpoint issues that cause performance regressions and impact user experience earlier in your development cycle
Overarching Areas of Opportunities

  • Launch new features confidently by monitoring and analyzing root causes of performance issues throughout the development life cycle
  • Drive new user installs and user engagement with optimized performance
  • Forge user trust and safety, accelerating consumer services for critical user paths across your apps and website
  • Benchmark KPIs for mobile performance to understand how your user experience for your mobile app and website compares to your peers in the same industry
  • Support localized testing across thousands of devices and 70+ countries around the world, on real devices under real-world conditions
Expert Holistic Consultation and Strategy 

HeadSpin has the product and solutions expertise to help you perfect the digital experience for your customers! Our team hails from digital pioneers, such as Google and Facebook, and has already delivered enhanced mobile-centric experiences for a diverse set of Fortune 1000 clients. HeadSpin’s strategic insights can help you:

  • Drive new user acquisition, user engagement, and feature adoption
  • Deploy app security measures on iOS and Android
  • Build consistent performance standards and experiences across all your mobile apps and websites 

... insight from HeadSpin helps us prioritize issues so we could deliver a better user experience.

Maria Zhang, CTO, Tinder