App Comparison
Memory palaces vs traditional structured courses — and the irony of an app that wrote about memory palaces but never built them.
The Verdict Upfront
Babbel is a solid, professional language learning platform built around structured courses. It covers 14 languages with real grammar progression, quality speech recognition, and content created by professional linguists. If you want a guided, curriculum-style path through a language, Babbel delivers that well.
Loci solves a different problem — the one that Babbel, despite its professional content, cannot fix with traditional methods: making vocabulary stay in your long-term memory. Babbel uses the same rote repetition approach as most apps. Words are reviewed until they stick, then slowly forgotten without constant reinforcement.
What makes this particularly striking is that Babbel's own blog has published a detailed article explaining how memory palaces work and why they are effective for language learning. They understand the science. They just never implemented it in their product. Loci did.
For structured grammar and conversation practice, Babbel is a strong choice. For vocabulary that actually survives into month 3 and beyond, Loci's memory palace method is decisively better.
Side by side — every dimension that matters for vocabulary learning.
| Feature | Babbel | LociWinner |
|---|---|---|
| Learning methodology | Structured courses, rote repetition | Memory palaces + spatial encoding |
| Content type | Grammar-first, conversational phrases | Vocabulary-first, deep word knowledge |
| Retention approach | Spaced repetition (basic) | Memory palace encoding + SRS |
| Languages | 14 languages | Portuguese (more coming) |
| Speech recognition | Yes — pronunciation feedback | Dictation exercises |
| Professional content | Linguist-designed curricula | Research-backed word lists |
| Price | $13.95/month | Free (early access) |
| Offline use | Yes (downloaded lessons) | Yes (full offline support) |
| Vocabulary retention after 30 days | ~20–25% of new words | 80%+ of new words |
| Memory palace technique | Wrote about it — never built it | Core feature of the entire app |
Retention figures based on Dresler et al. (2017) and Ebbinghaus forgetting curve research vs. memory palace encoding. Babbel pricing as of April 2026.
Being Fair
Babbel is a premium product with real strengths. These advantages are worth acknowledging honestly.
Babbel's courses are designed by professional linguists with clear learning paths. Grammar is introduced progressively, explained clearly, and practised in context. If structured grammar is your priority, Babbel's curriculum is more developed than anything Loci currently offers.
Babbel covers Spanish, French, German, Italian, Portuguese, Dutch, Polish, Turkish, Swedish, Norwegian, Danish, Russian, Indonesian, and English. Loci is focused on Portuguese for now. If your target language is not Portuguese, Babbel is the obvious choice between these two.
Babbel has invested heavily in speech recognition technology with real-time pronunciation feedback. Learners can practise speaking and immediately know whether their pronunciation is accurate. This is a genuine differentiator for spoken fluency.
Every lesson in Babbel is created or reviewed by linguists and native speakers. The quality bar is consistently high, with culturally relevant dialogues and real-world vocabulary. This is what a $14/month subscription buys you.
Loci's Advantages
For the core problem of vocabulary retention, Loci's advantages are decisive — and they stem from a fundamentally different approach to how memory works.
Babbel's SRS keeps words circulating. But without a durable memory anchor, they need constant re-exposure or they fade. Loci encodes each word into a vivid spatial scene in a memory palace — the kind of memory your brain retains naturally for months without grinding.
Loci's core technique activates the same place cells in your hippocampus that won the 2014 Nobel Prize in Medicine. By anchoring each new word to a physical location in an imagined space, you give your brain a durable retrieval cue that repetition alone cannot create.
Loci is laser-focused on Portuguese vocabulary depth. Every word comes with a crafted mnemonic scene, multiple exercise types (cloze, dictation, conjugation, sentence construction), and progressive difficulty scaling from recognition to production.
Loci is free during early access. Babbel costs around $14/month or $84/year. For learners who want to build a strong Portuguese vocabulary without a recurring subscription, Loci is the clear choice on value alone.
The Interesting Part
Babbel's editorial team has published content explaining how the method of loci works, why spatial memory is so durable, and how language learners can use memory palaces to remember vocabulary. It is a well-written piece that accurately describes the technique.
What Babbel's article does not mention is that none of this is implemented in their app. After reading about memory palaces on Babbel's blog, you open the Babbel app and find the same flashcard-style repetition as every other language app. The science stays on the blog; the product continues to rely on volume-based review.
This is not a criticism of Babbel's writing team. Building memory palace encoding into a language app at scale is genuinely hard — it requires crafting a mnemonic scene for every single word, designing a spatial palace interface, and integrating the whole thing with SRS scheduling. Babbel chose not to do that. Loci chose to.
The practical implication: If you read about memory palaces and think “I want an app that actually does this,” Loci is the answer. If you want structured grammar courses and do not mind traditional vocabulary review, Babbel is a well-made product. They are not solving the same problem.
Decision Matrix
The two apps also combine well: Babbel for grammar and conversation structure in the morning, Loci for locking in vocabulary at night. Babbel gives you context for words; Loci makes those words unforgettable.
Try It Yourself
Download Loci for Android — free, no ads, no subscription. Start with Brazilian Portuguese and experience what it feels like when vocabulary is encoded spatially rather than repeated. You will know within one session whether it feels different.
Download Loci for AndroidAndroid APK · Early access · Free · Brazilian Portuguese