# Complement: Spaced Repetition — Spaced repetition, explained

> Spaced repetition, explained (iPhone/iPad app by ComplementAI, LLC.)

- Source: https://appshunter.io/ios/app/complement-spaced-repetition/id6804471077 (this page in markdown: same URL + `.md`)
- Developer: [ComplementAI, LLC](https://appshunter.io/developer/6804471079)
- Category: Education, Medical
- Price: Free
- Age rating: 17+
- Requires: iOS 17.0 · 13 MB
- Languages: American English
- Released: 2026-11-05
- Data updated: 2026-11-07

## What is Complement?

Complement is a spaced-repetition app for serious learners. Import your Anki collection, study with the FSRS scheduler, and see your day at a glance.

When a card isn’t sticking, go deeper without leaving it:
- Ask about any card and get an explanation grounded in what’s on it
- Break down a term into its roots, meaning, and related concepts
- Practice with board-style questions that explain every answer choice

Built for how you study:
- FSRS scheduling that adapts to how well you actually remember
- A home screen that shows what’s due, how heavy today is, and when you recall best
- A picture of every session: where each card landed and when it comes back
- Browse, search, and organize every card in your decks
- Home Screen widgets for your daily reviews

AI features run on OpenRouter, so you choose the model.

Made for medical students, and useful for anyone learning a large body of knowledge.

Complement is an educational tool and does not provide medical advice.

## Is Complement safe?

Not enough ratings yet to assess Complement.

## Is Complement legit?

Complement: Spaced Repetition has limited verification signals. The AppsHunter Legitimacy Score for Complement is 50 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0.0 — 2026-11-05

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-07.*