Wordseed: Vocabulary Builder
Dien Ngo Education iPhoneiPadiPod touch
Wordseed: Vocabulary Builder is a free Education app for iPhone and iPad by Dien Ngo. Requires iOS 15.0. Updated October 29, 2026.
- Price
- Free
- on the App Store
- Size
- 11 MB
- Age 9+
- Updated
- Oct 29
- 2026 · v1.5
Screenshots
About Wordseed: Vocabulary Builder
Most vocabulary apps hand you a list. Wordseed does the opposite: you type in the words you actually met — in a book, a meeting, a song — and it brings each one back right before you'd forget it. FIVE A DAY BY DEFAULT Five new words a day is the default because it's a pace you can keep — small enough to survive a busy Tuesday, and still 1,800 words a year. Exam coming up, or a list to bring over? Wordseed Pro lets you add up to 30 a day. YOU WRITE THE MEANING, NOT A DICTIONARY Every card is three things you type yourself: the word, what it means in your own words, and a sentence you'd actually say. Copied definitions don't stick — your brain files them as someone else's. THE SAME WORD GETS HARDER OVER TIME Wordseed tracks how strong each memory is and picks the exercise to match. You never pick a difficulty: - Week 1 — just recognise the word - Week 3 — drop it into a sentence, with the ending changed - Month 2 — write your own sentence using it - Month 4 — write a paragraph using it alongside other words you've mastered A card only ever climbs one level per review, so nothing arrives before you're ready. SCHEDULING THAT ISN'T GUESSWORK Wordseed runs FSRS, the open-source spaced repetition algorithm. Nothing is hidden: every card tells you how likely you are to still remember it, and Stats shows your streak, a 12-week heat map, and a day-by-day log. AI THAT CHECKS YOUR SENTENCE Write a sentence, tap Check with AI, and find out whether it actually works — and if a native speaker would say it differently, what they'd say instead. The explanation comes back in your native language, so the correction never gets lost in translation. WORD SPRINT A two-minute game made from your own words: match each word to the meaning you wrote, then race 60 seconds to pick the right one. It never touches your review schedule, so play as often as you like. A NEW PASSAGE EVERY DAY Today's Read gives you one short passage a day. Tap any word you don't know and it becomes a card, with the sentence it came from. REMINDERS AND WIDGETS One reminder a day, at a time you pick. A widget keeps one of your words, with your meaning, on your Home or Lock Screen. YOUR WORDS STAY YOURS No preset packs. No word is ever locked behind a paywall. If you stop paying, every card you added stays, stays reviewable, and keeps its full history. FREE - 5 new words a day, all four exercise levels - 2 AI sentence checks a day, and 3 AI suggestions to try - Today's Read, Word Sprint, reminders, streak and full stats - A copy-the-prompt button, for checking sentences in a chatbot you already use WORDSEED PRO - 30 new words a day - AI sentence checks and suggestions for everyday use (up to 100 a day) - Dictionary definitions on every card, in English and your language - Synonym and spot-the-mistake drills, once a word is nearly yours - Bring an existing list over: import up to 200 words at once - A new short story from your Word Sprint words, every day PRIVACY No ads. No third-party tracking or analytics SDK. The sentence you send to AI is checked and discarded — it is never written to our database. Delete your account from inside the app and everything goes, immediately and permanently. SUBSCRIPTION Wordseed Pro is an auto-renewing subscription. - Monthly: USD 3.99 per month - Yearly: USD 39.99 per year, including a 7-day free trial for new subscribers Your local price, converted and including tax, is shown in the app before you buy. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the period ends. Any unused portion of a free trial is forfeited when you buy a subscription. Manage or cancel your subscription in Settings on your device. Terms of Use: https://wordseed.trolyai.info/legal/terms Privacy Policy: https://wordseed.trolyai.info/legal/privacy
What’s new
Version 1.5 · Updated October 29, 2026
Add words straight from what you are reading. READING SOMETHING? A "Reading something?" button now sits at the bottom of the main screens. Paste a passage, or take a photo of a page - the text is read right on your iPhone, and the photo is not sent anywhere or saved to Photos. You can also pick a page you photographed earlier. Tap the words you want to learn: each one keeps its sentence from the passage as its example, and AI can draft the meaning the word has in that sentence. ADD SEVERAL WORDS AT ONCE Import a list, the word ideas, Today's read and Reading something? now share one screen: tap Add, check each word, meaning and example, then Save. On Pro, Wordseed writes the meanings first - and "I'll write them myself" is always there. FASTER TO ADD An example sentence is now optional: a word and its meaning are enough. A card without one still comes up for review, and the app reminds you to add a sentence when it would help. On the free plan, after your three AI suggestions, copy a ready-made prompt into any AI chat and paste the reply back. WRITE A SENTENCE RIGHT AWAY After you add a word, you can write a sentence with it and Check with AI on the spot. It's optional, and it never changes your review schedule. ONE WORD, SEVERAL MEANINGS Add a word you already have and the app shows the meaning you saved: open that card, or add a second meaning ("abstract" - theoretical, or a summary). An optional word-type row (noun, verb, adj., adv.) is there if you want it. Definitions, word type and pronunciation now follow your example sentence, and a word said differently as a noun and as a verb shows both pronunciations. NATURAL VOICE The listen button now plays a natural-sounding voice that reads each word by its pronunciation. Pro: every word. Free: 5 words a day. SMARTER SENTENCE CHECKS Check with AI now knows which meaning a card is for, and tells a grammar mistake apart from wording that is only unnatural. A correct sentence that uses the word another way still passes, with a short note. The copied checking prompt now asks the AI to explain in your own language. SOMETHING WRONG WITH A CARD? Tap the line at the bottom of a card's details to tell us - the email carries only the card's code. PRIVACY Our privacy policy now covers photos of a page (read on your phone), the natural voice (only the word, and its pronunciation for some words, is sent to Google's text-to-speech), and the example sentence that goes with a word when its dictionary entry is written. Something broken, or something missing? Write to [email protected] - a real person reads it.
App privacy
The developer, Dien Ngo, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- User Content: Gameplay Content, Other User Content
- Diagnostics: Other Diagnostic Data
- Purchases: Purchase History
- Contact Info: Email Address
- Identifiers: User ID
- Usage Data: Product Interaction
Used for: Analytics, App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Usage Data: Product Interaction
Used for: Analytics
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Wordseed: Vocabulary Builder | – | Free | October 29, 2026 | |
| Booklet: Spaced Repetition | – | Free | Oct 6, 2026 | Compare |
| Memory Cards: Learn Words | 5.0 / 5 (1) | Free | Oct 24, 2026 | Compare |
| chemAR | – | Free | Sep 28, 2025 | Compare |
| ReadSmart English | – | Free | Jul 26, 2026 | Compare |
| 50 States and Capitals Quiz | 4.2 / 5 (10) | Free | Oct 5, 2026 | Compare |
| HSK Easy - Learn Chinese | – | 5.99 USD | Apr 30, 2026 | Compare |