REVIEW
Science & Environment · Atmosphere
Which layer protects Earth from harmful solar radiation?
Tap the card when you are ready to reveal the answer.
Reveal answer
FLASHCARDS, WITHOUT THE CLUTTER
Remember what matters.
Flashcards that adapt to your memory — not the other way around.
No account. No feed. Just focused reviews, clear progress, and optional private iCloud sync.
- Adaptive SM-2 + FSRS
- Offline-first
- Private by default
FlashForge
17 AUG
12
cards due today
- 3
- learning
- 9
- review
BUILT FOR DAILY RECALL
A quieter way to learn for the long term.
The tools needed for a dependable study habit, with none of the noise around them.
Adaptive review timing
SM-2 and FSRS schedule each card around your actual recall.
The familiar study loop
Read the front, reveal the answer, and grade recall with four clear choices.
Insights that stay useful
Review activity, retention, card progress, and upcoming work in one place.
HOW IT WORKS
Create once. Review when it counts.
- 01
Create
Turn an idea, term, or note into a focused card.
- 02
Review
Recall the answer and rate how well you remembered.
- 03
Return
FlashForge calculates when that card should come back.
PRIVATE BY DESIGN
Your cards remain yours.
No account is required. Study data stays on your device and in your private iCloud container when sync is enabled. Optional diagnostics never include card text.
Read the privacy policy ↗INDEPENDENTLY BUILT
Support FlashForge
Your support funds careful updates, maintenance, and long-term availability.
Buy me a coffeeBTC
bc1qz5neag5j4cg6j8sj53889udws70v7223zlvgd3ETH
0x5f35523757d0e672fa3ffbc0f1d50d35fd6b2571