
Expenses
Coming soonHousehold costs for couples. Each person logs what they pay, costs are split by category, and at the end of the month the app tells you who owes whom.
Software engineer · Tokyo
Here I share products that help me in my daily life. I design and build them with care, in multiple languages.
Want to know more? Feel free to reach out.
I'm a software engineer from Peru, living in Tokyo with my wife.
I've spent 7 years building web and mobile products, including services used by millions of people at Rakuten and Paramount+.
Avelca is where I publish my own apps. I start with what I need at home: splitting costs with my partner, studying Japanese, keeping my notes in order. If it helps me, it will help someone else too.
The name comes from my two surnames: Avelino Campos.
What I'm building and what is already online.

Household costs for couples. Each person logs what they pay, costs are split by category, and at the end of the month the app tells you who owes whom.

For JLPT prep. Review cards for vocabulary, grammar and kanji, and mock exams in the format of the real test.
Visit ›A private personal memory. You tell it things, it keeps them in order and answers questions about them.
Projects I build to help people and groups around me.