uLesson bet SD-card lessons crack African edtech; 2M downloads, $15M Series B

uLesson is a Nigerian edtech company selling a K-12 learning app: pre-recorded video lessons shipped on SD cards for offline use, plus quizzes, homework help and live classes, priced by subscription.

African families would pay for K-12 lessons delivered offline via SD cards on cheap Android phones, then upgrade to live tutoring — distribution, not content, wins.

$3.1M seed (Nov 2019); $7.5M Series A led by Owl Ventures (Jan 2021); $15M Series B with Tencent and Nielsen Ventures (Dec 2021)

Sim Shagaya, who had founded Nigerian e-commerce ventures DealDey and Konga, founded uLesson in 2019 after a $3.1M seed; the app launched just weeks before COVID-19 was declared a pandemic, when the ground for remote learning 'became wet in a way we didn't see before' (TechCrunch).

The pandemic made remote learning urgent across Africa: by Jan 2021 the app passed 1M downloads with 70% MoM growth, and Owl Ventures led a $7.5M Series A to fund live tutoring. uLesson added quizzes, homework help and one-to-many live classes, and by Dec 2021 — with 2M downloads, 25.6M questions answered and paying users up 600% — Tencent and Nielsen Ventures led a $15M Series B, the largest disclosed African edtech investment at the time. A kids-coding experiment (DevKids) that once made 30% of revenue was rolled back, while schools became the biggest channel: half of subscribers used uLesson in school and Nigeria supplied 85% of paying users.

Still running: uLesson's site was live as of 2026-09-02 and the company continued operating and expanding after the December 2021 Series B.

uLesson is Nigeria's clearest bet that offline distribution, not content, wins African edtech — SD cards were the product thesis.

The COVID-19 shock tested the bet immediately: schools closed weeks after launch and remote demand became the growth engine (70% MoM growth, 1M+ downloads).

Its funding trail is unusually complete and dated — $3.1M seed (2019), $7.5M Series A (Jan 2021), $15M Series B (Dec 2021) — each documented by TechCrunch.

The 2021 experiments (DevKids, live classes, offline centers) show a founder deliberately iterating the business model rather than repeating a format that worked elsewhere.

In low-bandwidth markets the delivery format is the product: SD cards won uLesson its first million downloads, and live tutoring became the upsell — content alone does not move African edtech.

As of the 2026-09-02 site check, uLesson still operates as a K-12 learning app for primary, junior-secondary and senior-secondary students; the hard numbers above come from the December 2021 Series B announcement (2M downloads, 25.6M questions answered, 12.3M videos watched, 600% paying-user growth). Its earlier seed and Series A of $3.1M (Nov 2019) and $7.5M (Jan 2021) are documented by TechCrunch.