SuperMemo's legacy
SuperMemo pioneered algorithmic spaced repetition, and its long history of algorithm revisions laid much of the groundwork that later informed newer approaches like FSRS. For students and researchers who want deep, granular control over how scheduling behaves, that depth is unmatched.
That depth comes with a steeper learning curve. SuperMemo's interface and configuration options are built for users who want to understand and tune the algorithm itself, not just use it.
Cueable's more approachable trade-off
Cueable uses FSRS-based scheduling—part of the same broader algorithmic lineage—but keeps the configuration mostly invisible. You study; the scheduler adapts based on your results, without asking you to understand or adjust algorithm parameters directly.
This suits students who want the benefit of adaptive, evidence-informed scheduling without treating spaced repetition configuration as a hobby in itself.
Practice style also differs
Beyond scheduling, Cueable adds built-in active-recall formats—typed responses, cloze, reconstruction, spoken interview practice—and deadline-aware plans that shift emphasis as an exam date nears. SuperMemo's focus has historically centred more on the scheduling algorithm itself than on varied, purpose-built practice modes.
Which to choose
Choose SuperMemo if you want maximum control over the scheduling algorithm and are willing to invest time understanding it. Choose Cueable if you want the benefit of modern, FSRS-based adaptive scheduling with a simpler interface, varied recall formats and planning tied to a real deadline on a compatible Mac.