ComparisonJune 15, 2025· 6 min read

The Best Anki Alternative in 2025: Why We Built Flevro

Anki is powerful but frustrating to use. We built Flevro to give serious learners the same science-backed spaced repetition — in a modern, cloud-native app with AI tools built in.

Anki is the gold standard of spaced repetition. Millions of medical students, language learners, and knowledge workers swear by it. And for good reason — it works. But if you've used Anki for more than a week, you've probably hit at least one of these walls:

  • The UI looks like it was designed in 2007 (because it was)
  • Sync between desktop and mobile requires AnkiWeb and often breaks
  • Creating cards is tedious — no AI assistance, no bulk tools
  • Mobile apps (AnkiMobile, AnkiDroid) are separate projects with inconsistent behavior
  • The algorithm (SM-2) hasn't been updated in decades

We built Flevro because we believed learners deserved better — the same rigorous science, but with a tool that doesn't get in the way.

What Flevro Does Differently

1. FSRS-5 Instead of SM-2

Flevro runs FSRS-5, the most accurate spaced repetition algorithm available. In benchmarks, it reduces total review time by ~20% compared to Anki's SM-2 — without sacrificing retention. Read our full explanation of FSRS.

2. Cloud-Native Architecture

Flevro is built from the ground up for the cloud. Your decks, cards, and review history sync instantly across web, iPhone, and Android — no setup required, no sync conflicts. The mobile app is offline-first, so you can study on the subway and sync when you reconnect.

3. AI Tools Built In

Creating cards is where most Anki users lose momentum. Flevro ships with:

  • One-click translation — translate any text into 50+ languages instantly
  • Text-to-speech — hear native pronunciation with Neural2 voices (Premium: 30+ Gemini voices)
  • AI phrase generation — generate example sentences for vocabulary cards
  • AI image generation — create visual memory anchors for abstract concepts (Premium)

4. Anki Import

You don't have to start from scratch. Import your existing Anki decks (.apkg, .colpkg) directly into Flevro with one click. Your cards come over intact; Flevro's scheduler takes it from there.

Honest Comparison

AnkiFlevro
AlgorithmSM-2 (legacy)FSRS-5 (state of the art)
PriceFree (desktop), $24.99 (iOS)Free tier + Pro $2.99/mo
SyncVia AnkiWeb (unreliable)Real-time, native cloud
AI toolsVia plugins (fragile)Built-in, no setup
Mobile appSeparate apps, inconsistentSingle Flutter app, same UX
UIFunctional but datedModern, dark mode, responsive
Anki importN/A✅ .apkg and .colpkg
Open sourceYesClosed source (SaaS)

Who Should Switch?

Flevro is the right choice if you:

  • Want the best available algorithm without configuring plugins
  • Study on multiple devices and are tired of sync issues
  • Spend too much time creating cards and want AI to help
  • Are starting fresh and want a modern tool from day one

Anki remains the right choice if you rely on a specific community deck (like the Anking deck for USMLE), use highly customized card templates, or need 100% offline with no account.

Try It Free

Flevro's free tier includes unlimited cards, 3 decks or documents, full FSRS-5 scheduling, TTS, and AI translation. No credit card required. Start learning smarter today.

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