o46scope vs LingoLeap Pro

o46scope is an audio measurement app for iPhone and iPad that helps you visualize sound in real time. It supports oscilloscope and FFT spectrum display, allowing you to inspect waveforms and frequency components instantly. The app also supports internal signal generation with Tone1 / Tone2 and test signal (Beep) output, making it useful for quick checks, learning, and simple audio measurement tasks. Key features • Oscilloscope display • FFT spectrum display • Signal tab for signal control • Internal signal generation with Tone1 / Tone2 • Speaker output for tones • Test signal (Beep) output • Adjustable parameters Premium Tone1 / Tone2 internal signal generation is available as a premium feature. It is available without ads. Ideal for users who want waveform visualization, frequency analysis, and signal generation in one app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

LingoLeap is the smart language learning app that uses proven spaced repetition science to help you remember vocabulary forever. Whether you are learning Spanish for travel, studying Japanese for the JLPT, or picking up French for fun, LingoLeap adapts to your pace and keeps you motivated. SMART SPACED REPETITION Our SM-2 algorithm tracks your recall strength for every word and schedules reviews at the optimal moment. Cards you struggle with appear more often, while easy cards fade into longer intervals. This science-backed approach is proven to be 3-4x more effective than traditional study methods. 8 BUILT-IN VOCABULARY DECKS Start learning immediately with 400+ curated words across five languages: - Spanish Travel and Daily Life - French Travel and Daily Life - German Travel and Daily Life - Japanese JLPT N5 Exam Prep - Korean Daily Life Each word comes with example sentences, translations, difficulty levels, and topic tags to give you rich context. CREATE YOUR OWN DECKS Add your own vocabulary with custom words, meanings, and example sentences. Build decks for any language or subject you want to master. Free users can add up to 50 custom words, while Pro users enjoy unlimited custom vocabulary. TRACK YOUR PROGRESS - Daily study streaks to keep you consistent - Detailed statistics showing cards mastered, accuracy rates, and study time - Visual progress tracking for each deck - Daily goals that adapt to your learning pace STUDY ANYWHERE - Works offline - study on the subway, on a plane, or anywhere without internet - Clean, distraction-free interface designed for focused learning - Swipe gestures for quick card reviews - Session summaries showing your performance after each study round DAILY REMINDERS Set customizable reminders to keep your study habit going. Never miss a day and watch your streak grow. LINGOLEAP PRO Unlock the full potential of LingoLeap with a Pro subscription: - Unlimited custom vocabulary words - Advanced statistics and learning analytics - iCloud sync across all your Apple devices - Custom themes to personalize your experience Choose the plan that works for you: - Monthly: $2.99/month - Yearly: $19.99/year (save 44%) - Lifetime: $39.99 one-time purchase SUBSCRIPTION INFORMATION: - Payment will be charged to your Apple ID account at confirmation of purchase. - Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. - You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription.