Gloss vs WordUp
WordUp is ambitious: a knowledge map of the 25,000 most common English words, an AI tutor, celebrity chats, nine kinds of challenge. Gloss is small. One word a day, six ways to understand it, four games to keep it. If you like a big system, WordUp has one. If you want a habit that takes a minute, Gloss is it.
What WordUp does better
- Scale. A map of your whole vocabulary, word by word, and a plan to fill it in.
- Variety. Nine challenge types, images, videos, a tutor to chat with.
- A browser extension for Chrome, where Gloss has the share sheet.
What Gloss does differently
- One word a day, chosen for you, and nothing to catch up on.
- Six styles. WordUp explains a word one way, with an image. Gloss explains it in the style you pick.
- No advertising data. Gloss has no ad network, no tracking and does not ask for the tracking permission; see the privacy policy.
- One price list. Yearly with three days free, monthly, or pay once. No Standard and Pro to choose between.
- Paste a paragraph, or share one from any app.
Side by side
| Gloss | WordUp Vocabulary Builder | |
|---|---|---|
| Price | $39.99 a year after three days free; $5.99 a month; or pay once, $129.99 | Free to start; Pro $9.99 a month, $49 a year or $149.99 for life; Standard $7.99 a month or $79.99 a year |
| Ads | None, and no free tier | The listing does not say; its privacy label lists advertising data used for third-party advertising and tracking |
| How a word is explained | Six styles you choose, rewritten per word; a line with the word in use; origin; close synonyms; the classic definition where one exists | Definitions with AI-generated images, video clips and sample sentences; an AI tutor |
| Word of the day | One gloss every morning, with three questions; only answered days count toward the streak | A daily plan drawn from the knowledge map |
| Practice | Four games on spaced repetition, a Sunday review | Spaced repetition with nine challenge types |
| Offline | Today’s gloss, this week’s words and your saved words; new lookups need a connection | Yes |
| Languages | English, with the menus in English and Spanish | English, with interface translations |
| Where it runs | iPhone (iOS 18 and up); the share sheet; widgets | iPhone, iPad; Android; a Chrome extension |
| On the App Store | New in 2026, by PixelPaw SRL | Geeks Ltd; rated 4.8 from about 14,000 ratings; age rating 13+ |
Which one?
If you want to learn 25,000 words, WordUp is built for it. If you want to understand the next word you meet, and the one after that, Gloss is.
More comparisons
Gloss vs Merriam-Webster · Gloss vs Dictionary.com · Gloss vs Vocabulary.com · Gloss vs Oxford Dictionary · Gloss vs Urban Dictionary · Gloss vs Cambridge Dictionary
Facts about WordUp Vocabulary Builder were read from its App Store listing in October 2026 and may have changed since. Prices are in US dollars. Nothing here is endorsed by its publisher. Corrections: support@gloss.day.