Data worries vs. data-free browsing: What users in Nigeria & South Africa taught us about mobile data and trust
Understanding trust, comprehension, and behaviour in data-sensitive environments
Working alongside our UXalliance partners in the US, Bold Insight, we were tasked with evaluating the usability and comprehension of a data-saving feature for a popular video platform. From the start, we knew we were stepping into a critical intersection of tech accessibility and digital behaviour. In mobile-first markets like Nigeria and South Africa, where data costs are high and users are hyper-aware of their consumption, the challenge wasn't just about testing a new feature; it was about decoding trust, comprehension, and behaviour in price-sensitive environments.
The problem we set out to solve
Across both countries, a consistent barrier had emerged in previous research: users were concerned that simply opening the video app, even just to browse, would drain their mobile data. The concept under evaluation aimed to counter that concern by allowing users to scroll and explore video content without data charges, unless and until they chose to play a video.
User fear
Opening video app would deplete mobile data
Data-saving solution
Browse without data charges until video playback
Understanding
Did users actually understand this feature?
Reassurance
Did it ease their concerns about data usage?
Communication
Which design variants best communicate the value of browsing without data?
Our approach: Grounded, cross-market research
To get to the heart of the matter, we conducted in-depth interviews (IDIs) and concept validation sessions with 20 mobile users in South Africa and Nigeria.
The participants came from diverse backgrounds, but shared one important trait: they used prepaid data bundles and were highly aware of their data consumption. This meant any new feature claiming to be data-free would be met with both interest and scrutiny.
We tested multiple variants of the feature interface to determine which language, iconography, and UX patterns most effectively reassured users and made them feel in control of their data use.
20
Mobile Users
Participated in research
2
Markets
South Africa and Nigeria
10
Per Country
In-depth interviews conducted
What we learnt: Data is emotional
Users in both markets appreciated the idea of being able to browse without using data but often didn't immediately realise they were in it. In several cases, participants believed the app Ywould start consuming data the moment the app opened, regardless of any data-saving feature.
This insight was crucial: technical functionality wasn't enough, it had to work emotionally. The mode had to instil confidence, reduce friction, and offer visible reassurance every time the user opened the app.
We also found that small changes, like clearer messaging at entry points, consistent colour cues, or subtle toggles, had an outsized impact on user trust. Participants responded positively to interface versions that made the "no data will be used" message explicit, persistent, and visually intuitive.
What this means going forward
The research surfaced several clear takeaways for product teams working in data-conscious environments:
Clarity beats cleverness
Users preferred straightforward terms like "No data used" over abstract labels.
Reinforcement is key
A single banner isn't enough. Users needed repeated reassurance that they were in data-free mode.
Data sensitivity shapes behaviour
Until trust is built, users assume the worst. Apps perceived as "data-hungry" must work harder to earn and maintain trust.
Next steps & takeaway
By combining usability insights with cultural context, we helped Bold Insight and their client fine-tune product variants that not only functioned well but also communicated effectively in real-world settings.
This study reaffirmed a central belief we hold at Mantaray Africa: Great UX in emerging markets means meeting users where they are, not just digitally, but emotionally and economically.
Let's keep the conversation going
Have you designed for data-conscious users? What's worked, and what hasn't? We'd love to hear your thoughts. Connect with us to learn more about how contextual UX research can help your product land better across diverse markets.
www.mantaray.africa