Unlocking the Power of Data for Social Transformation

Supporting education and innovation.

Tangerine® is revolutionizing the landscape of education assessment, data collection, and teacher coaching in low-income countries. Tangerine is open-source software that can be used offline to help with skills measurement, continuous and summative assessments, classroom observations, and surveys. 

Tangerine® Product Suite 

Tangerine Icon

Tangerine®

  • Used in large-scale, anonymized assessments and surveys. 

  • Longer assessments and surveys, administered by data collection teams. 

  • Results are synchronized to Tangerine’s server and analyzed in aggregate.  

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Tangerine:Teach

  • Used in class by teachers or support staff to track individual learning over time.

  • Shorter assessments conducted throughout the school term.

  • Results are stored on each tablet and accessible in simple graphs and tables.

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Tangerine:Coach

  • Used by coaches during school support visits. 

  • Rapid assessments, surveys, and classroom observations repeated during each support visit.

  • Results are used offline for immediate teacher feedback and online for progress reports.

Global Impact

Tangerine has modernized reading and mathematics assessments in resource-constrained settings. Over 2 million assessments and surveys have been conducted, spanning 65 countries and supported by 80 organizations and researchers.

Timely Data

Say goodbye to weeks of waiting for data. With Tangerine, results are available immediately upon upload, ensuring timely and accurate insights for informed decision-making. 

Versatile Capabilities

Beyond academics, Tangerine facilitates non-cognitive assessments, inclusive education, and social-emotional learning. We're not just assessing knowledge; we're nurturing holistic development.

Tangerine’s local and global impact

100+

languages

60+

countries worldwide

80+

organizations



By using Tangerine, School-to-School International jump-started its data analysis and reporting. Tangerine will remain an essential tool for STS as it expands its Whole Child Model and shares its expertise with partner organizations worldwide.


Tangerine® Community 

Sesame Workshop Logo
ORB International Logo
School to School International Logo
American University of Nigeria Logo
Bridge Logo
Save the Children Logo
World Vision Logo
American Institutes for Research Logo
Worldreader Logo
International Rescue Committee Logo
Room to Read Logo
Friends of Matenwa Logo
Concern Worldwide Logo
Pencils of Promise Logo
Fundacion Luker Logo
Innovations for Poverty Action Logo
Social Impact Logo
Catholic Relief Services Logo

Ready to try Tangerine? Start a free trial today