StackCards vs Decision Threshold

StackCards is a beautiful, focused flashcards app for studying anything languages, math, science, code, history, or any subject you want to master. Create a card, add the answer, and review it until it sticks. No clutter, no accounts, no subscriptions. MADE FOR ANY SUBJECT • Basic cards - a question or term and its answer • Vocabulary cards - a word or phrase and its translation • Formula cards - a name and its formula, with a math symbols keyboard • Code cards - concepts with syntax-highlighted snippets in 17+ languages SMART STUDY • A smart review mode that brings back the cards you miss and haven't seen in a while • Study modes: smart mix, hardest first, least reviewed, and shuffle • Beat-the-clock timed mode • Swipe to rate, tap to reveal, flip for examples and notes STAY ORGANIZED • Group cards into collections and subfolders • Color tags and instant search • Drag & drop to move and reorder • Export and import collections to share or back them up BUILD A HABIT • A daily streak that keeps you coming back • Optional evening reminder if you haven't studied • Unlock an exclusive theme and card style at a 100-day streak MAKE IT YOURS • Light, dark, and system appearance • Accent colors, animated backgrounds, and animated card styles • Track your progress with mastered / learning / new stats PRIVATE BY DESIGN Everything stays on your device. StackCards doesn't track you and doesn't collect your data. STACKCARDS PREMIUM Unlock everything with a single payment - yours forever, no subscription: • Unlimited collections and nested folders • Every theme, accent color, and card style • Add images to your cards • Unlimited imports of any size The free plan includes up to 3 collections, unlimited cards, and one level of subfolders - plenty to get started.

Make a choice. Look at the conditions again. Discover what influenced you. Decision Threshold offers 100 short experiments to help you reflect on your decisions. Choose a side in a dilemma, check a remembered detail against your confidence, or see how new information affects your choice. Then try an insight from your session in an everyday decision. WHAT HAPPENS AFTER YOUR ANSWER? Explore your choices and the information available at each step. See what the result suggests, the limits of that observation and something you can try in everyday life. Keeping the same choice can be meaningful too. FROM A RESULT TO EVERYDAY LIFE Your journey brings together completed sessions, observations and your next step. Connect a result to Your Decision Notes: record what you will do, what you expect and what would make you reconsider. Come back to reflect on what happened. Your first entry stays intact, with later reviews alongside it. 100 SESSIONS, 20 DECISION AREAS Explore memory, confidence, information sources, time, ownership, probability and communication. Follow one of five themed routes or choose your own path through the catalog. There is no required order or daily content gate. START FREE 24 complete sessions and their results are free. One Premium purchase unlocks the 76 additional sessions in this release. Journey summaries, the Decision Map, decision notes and reviews remain free. No ads or subscriptions. The price is shown before purchase, and you can restore access with the same Apple Account. Available in English, Turkish, Spanish and French. Choose a light, dark or system theme. Optional session and decision reminders help you return. No account required. Session records and personal notes stay on your device. Export sessions as JSON and notes as plain text; these files cannot be imported back into the app as backups. Restoring a purchase does not transfer your personal records to another device. Decision Threshold is not a health service, diagnostic tool or scientifically validated personality test. Results describe the responses recorded in that session, without definitive judgments or promises about your real-life decisions.