# Blu - SAT Vocab — Words Unlock Your SAT Odyssey > SAT vocabulary builder using spaced repetition and high-yield word focus. (iPhone/iPad app by Yuanwang Luo.) - Source: https://appshunter.io/ios/app/blu-sat-vocab/id6787025391 (this page in markdown: same URL + `.md`) - Developer: [Yuanwang Luo](https://appshunter.io/developer/1868684859) - Category: Education - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 17.0 · 164 MB - Languages: American English, Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan) - Released: 2026-07-24 - Data updated: 2026-09-10 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/blu-sat-vocab/id6787025391/reviews.md ## What is Blu? Blu makes the SAT's vocabulary finally stick. Instead of grinding a random 3,000-word list, Blu starts you on the 500 highest-yield words that actually move your score — the ones that show up again and again on the digital SAT — then expands as you master them. HOW IT WORKS - One lesson a day. 20 words, about three minutes: meet a few new ones, bring back what's due. No cramming, no guilt. - Two answers, no self-grading. "I know it" or "Not yet" — say Not yet and the card simply turns over so you can learn it properly. - Words in Context. Practice the exact skill the digital SAT tests — choosing the precise word for a sentence — with original, SAT-style questions. - Smart review. A spaced-repetition system brings each word back right before you'd forget it, so it sticks for test day. - Honest progress. Every session moves a real number: words learned out of the core 500, and out of the whole 2,814-word library. WHY BLU - The 500 core first: highest yield, least wasted effort. - Real example sentences plus clear definitions, etymology, and memory hooks for every word. - Audio pronunciation. - Calm, distraction-free design built for daily study. - Sign in with Apple once — your progress syncs across your devices and your subscription can never be lost. BLU PRO Free forever: the core 500 words, full audio, and one 20-word lesson a day. Blu Pro unlocks the 2,300+ word advanced library, unlimited daily lessons, 4x more AI explanations, and double streak freezes. Monthly or yearly, with a free trial on the annual plan. A few minutes a day is all it takes to make the SAT's words your own. Blu Pro is an auto-renewable subscription (monthly or yearly). Payment is charged to your Apple ID; it renews unless canceled at least 24 hours before the period ends. Manage or cancel in your App Store account settings. Terms of Use (EULA): https://sat.runwith.top/en/sat/terms Privacy Policy: https://sat.runwith.top/en/sat/privacy ## Key features - Daily 20-word lessons - Spaced repetition system - Words in context practice - Honest progress tracking - Audio pronunciation - Distraction-free design ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Blu Pro Monthly | $9.99 | per month | | Blu Pro Yearly | $59.99 | per year | ## Frequently asked questions about Blu ### What is the core learning method of Blu? Blu uses a spaced repetition system to bring words back right before you'd forget them, ensuring long-term retention. It focuses on the 500 highest-yield words first, then expands the library as you master them. ### How does Blu help with SAT-style questions? Blu includes practice exercises that mimic the digital SAT's format, specifically focusing on choosing the precise word for a given sentence. This helps users develop the exact skill tested on the exam. ### What is included in the free version of Blu? The free version of Blu provides access to the core 500 words, full audio pronunciation, and one 20-word lesson per day. This allows users to get started with effective vocabulary building without immediate cost. ### What are the benefits of Blu Pro? Blu Pro unlocks an advanced library of over 2,300 words, offers unlimited daily lessons, provides 4x more AI explanations, and includes double streak freezes. It's designed for users who want to accelerate their vocabulary mastery. ### How much does Blu Pro cost? Blu Pro is available as a subscription with two options: $9.99 per month or $59.99 per year. The annual plan includes a 7-day free trial. ### How can I manage or cancel my Blu Pro subscription? Your Blu Pro subscription is auto-renewable and managed through your App Store account settings. You can cancel at least 24 hours before the current period ends to avoid further charges. ### What devices does Blu support? Blu is currently supported on iPhones. Progress syncs across devices when you sign in with Apple. ### How often is Blu updated? The latest version of Blu is 2.1.2, and it was last updated on September 5, 2026. This indicates a relatively active development cycle for the app. ## Version history (last 5 releases) ### 2.1.2 — 2026-09-05 2.1.2 · Study: faster, smoother flips and card changes; new cards always slide in from the right; the answer bar and its feedback line no longer jump. · Practice & tests: multiple-choice questions use the full screen, and the options are shuffled every time. · Share card: today's new words appear in a shuffled order. · Word card: the headword and favorite buttons stay pinned at the top while you scroll the back. · Includes 2.1.1: centered card front and a back that scrolls inside the card when it runs long. ### 2.1.0 — 2026-09-03 Blu 2.1 — the biggest update yet. • Parent dashboard: share a read-only progress link with your parents (Pro). Revoke it any time. No scores, no rankings — just streak, this week and words learned. • Every 5-word round now brings at least one new word, and each quick check opens with the two words you know best. • Get it right and feel it: the card bounces, a soft chime plays, combos build, and a perfect check earns a star burst. • Practice explanations now in Chinese and Japanese, with a short gloss under every option. • Easier on the eyes: roomier line spacing, clearer paragraphs and calmer weights on every screen, in a softer blue. • Share card 2.0 in seven looks — from Swiss grid to ink wash — a new one each time, or tap "Try another style". • Up to 3 daily reminders at times you choose; your avatar and nickname on Home and on the card. • Have a redemption code? Redeem it from Me or the Pro page. Add the friend who recommended Blu. ### 1.7.1 — 2026-08-29 Five words at a time — and a quick check after every round. • Studying is bite-size: 5 words per round, about a minute, then an instant check on exactly those five — real SAT-style context questions. • Every check now explains itself: see WHY the answer is right (in your language too), and move on when you're ready — you control the pace. • Reviews are UNLIMITED for everyone. The only daily limit is new words (5 core + 3 advanced tastes). • The level test is back: Me → Level test. Ten questions, your estimated score band, retake any time. • Cleaner question screens: bigger reading type, less clutter. • Words you miss on a check land in your notebook and come back early. ### 1.6.0 — 2026-08-28 Small groups, faster wins. • Your daily 20 words now come in four groups of five. Every group ends on a small win — and every group opens with words you probably know, never five strangers in a row. • A free taste of the advanced library: 3 advanced words every day, in your last group. What you start stays yours to review, and stays lit on the map. • Combo streaks: answer "I know it" a few times in a row and watch the ×3, ×4 build. It simply disappears when the run ends — no shame, no red. • The share card now speaks your language, and carries a QR code so a friend can scan straight to the App Store. • A nicer hello: the loading screen now teaches you one real word origin a day. ### 1.4.0 — 2026-08-26 A rebuilt Blu, designed around one idea: 20 words, about 3 minutes, every day. • Simpler cards. Two answers now — "I know it" or "Not yet". No self-grading, no red marks. Say "Not yet" and the card simply turns over so you can meet the word properly. • A Home that shows progress. Your core-500 count, your whole-library count, and what you added today — every session moves a number. • A clearer finish. Each session ends with what you gained: words met, words reinforced, your streak, and the bar creeping forward. • Bigger type, bolder buttons, and a map where the advanced half is always visible. • Reminders you choose. Pick your own time after a session — friendly, capped at two a day, never late at night. • Straight in. Sign in and you land on your first lesson; the old placement test and setup steps are gone. Fuller Simplified Chinese, Traditional Chinese and Japanese throughout. ## More apps by Yuanwang Luo - [RunLang](https://appshunter.io/ios/app/runlang/id6757753633) - [投知卡](https://appshunter.io/ios/app/id6757800864) - [Tally Rule - Habit Tracker](https://appshunter.io/ios/app/tally-rule-habit-tracker/id6758990383) All apps by Yuanwang Luo: https://appshunter.io/developer/1868684859 --- *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 2026-09-10.*