Team · Lead, UX Benchmark (CCS-UX)
Ana Costa
Mobile Engineer & UX Performance Lead
“Logging speed isn’t a UX nicety. It’s the single best predictor of whether someone is still using the app in week 14.”
Who is Ana Costa?
Ana joined The Calorie Counter Standard in 2024 to take ownership of CCS-UX, the user-experience benchmark that weights 10% of the composite score. She brings ten years of mobile engineering — most recently as a senior iOS engineer at a European fintech, where she built the team's performance dashboard from the runtime up. At TCCS she runs the time-to-log harness (six instrumented user journeys per app, replayed on a calibrated mid-range Android phone and an iPhone 14), the WCAG 2.2 AA audit, and the Apple Watch / Wear OS integration tests. She is also our internal advocate for accessibility scoring — adding it as an explicit sub-component in 2024 was her proposal.
What does Costa specialise in?
- Mobile app performance profiling
- Time-to-log measurement
- WCAG 2.2 accessibility audits
- Wearable integration testing
Where did Costa study?
- MSc, Computer Science — Universidade de Lisboa (IST) (2016)
What did Costa do before The Calorie Counter Standard?
- Senior iOS Engineer, fintech app (2019–2024)
- Android Platform Engineer, telecom app (2016–2019)
What has Costa published?
- Costa A. "Latency budgets for habit-forming consumer apps." Talk at a Lisbon mobile meetup, 2023.
Which CCS calorie counter protocols does Costa own?
Ana owns the following CCS scoring protocols. See the methodology page for what each measures.
CCS-UX
Reviews by Ana
- MyNetDiary Review — 69.2/100
- Lose It! Review — 65.7/100
How do you contact Costa?
For accessibility audit details, email research@calorie-counters.com.