Sergiu Puscas

I'm the developer behind MintDeck, a free flashcard app for iPhone built on the FSRS spaced repetition algorithm — and I write every guide, how-to, and app comparison published on this blog.

Building a spaced repetition app means living inside this problem space daily: scheduling algorithms, card design, import formats, what makes reviews stick and what makes people quit. The articles here come out of that work — the learning-science guides explain the research MintDeck is built on, and the comparisons cover the apps I evaluated and compete with.

How the app comparisons are written

A fair warning and a promise: MintDeck is my app, so every comparison on this blog has an obvious interest. Here is how I keep them honest:

• I use the apps I write about — installed on a real device, with real decks — rather than summarizing other people's reviews.
• Prices, free-tier limits, and feature claims are re-checked against the live App Store listings and official sites at the time of writing, and noted with the year they were verified.
• Each comparison states who the other app is best for. If Anki Desktop or a pre-made Quizlet library is the better fit for your situation, the article says so.
• When something changes — a price, an algorithm, a paywall — I update the article rather than leaving stale claims up.

If you spot something outdated or wrong, tell me at support@mintdeck.app and I'll fix it.

Start here

• The science of learning — spaced repetition, FSRS, and active recall, explained simply.
• MintDeck vs Anki — the comparison most readers come for.
• The free AI flashcard generator — try the app's core feature in the browser.