Comparison

HiWord.AI vs Formula Calculator Alpha

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

HiWord.AI

Features
Read full description

HiWord.AI helps you learn English words you can actually use: a few new words each day, met again in an article, a sentence to read aloud and a conversation. Learning one word well beats memorizing a hundred. HiWord gives you a small set of words each day and carries them from flashcards to practice, reading and speaking, so "I recognize it" becomes "I can say it." TODAY'S PATH Three steps a day: flashcards, practice, and an article written with your words. Shadowing and AI Talk are there whenever you want to speak, and they earn XP too. AI TALK Chat with five AI partners, each with their own personality, voice and level, from a patient beginner coach to a sharp investor. Talk about your day and use today's words. Every session ends with a short review of what went well and what to rephrase. SHADOWING WITH FEEDBACK Read a sentence after the native audio and get instant feedback on accuracy, rhythm, stress, fluency and clarity, down to the word and the sound. READING AND DAILY NEWS Read articles written with the words you're learning, with bilingual support, full-text audio and tap-to-look-up. A short Daily News brief in plain English arrives every morning. PRACTICE Sentence tiles, listening, matching and fill-ins. When you pick a wrong answer, HiWord tells you what that word means. ASK HIWORD Ask in English or Chinese. Look up a word, a phrase or a whole sentence, find natural ways to say what you mean, check whether your own sentence sounds right, and see how two words differ. IMPORT YOUR OWN ENGLISH Bring in links, text, photos, documents and audio, or share straight from Safari and other apps. HiWord turns them into articles you can read, listen to and practice with. GAMES You Describe, AI Guesses: see a secret word and give clues in English until the AI guesses it. No timer, so take your time. LEADERBOARD A weekly board that resets every Monday. Cheer on the people learning with you. WORDBOOKS Daily English, Ogden 850, KET, PET, IELTS, Gaokao, CET-4, CET-6, Business, Crypto, PSLE, World Cup, F1 and more. Every word comes with phonetics, part of speech, Chinese meaning and example sentences. ON IPHONE, IPAD AND APPLE WATCH Optimized for iPhone Duo: learn on the full inner display and keep your place when you fold or unfold. Home Screen and Lock Screen widgets show what to study next, and you can review cards on Apple Watch. Your progress syncs across devices, and core learning works offline. HIWORD PRO HiWord is free to download, and flashcards and practice are free. With HiWord Pro you can use AI chats, shadowing packs and imports without holding back. HiWord Pro is an auto-renewable subscription. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel it in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hiword.ai/privacy Support: support@hiword.ai Stop studying. Start using.

About

Formula Calculator Alpha

Features
Read full description

Turn your Apple Watch into a powerful mathematical canvas. Formula Grapher is a fully independent graphing calculator meticulously designed for watchOS, allowing you to plot, explore, and analyze complex equations anytime, anywhere—without taking out your phone. Perfect for students, engineers, and math enthusiasts.

Screenshots

HiWord.AI4 screens
Formula Calculator Alpha4 screens

Verdict

The call

The clearest difference is in-app purchases: Formula Calculator Alpha at none against HiWord.AI's 1. HiWord.AI's advantage is update cadence (daily vs every 9 days) and iOS requirement (18.0 vs 26.2). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. HiWord.AI sells 1 in-app purchase, starting at $39.99 per year. Formula Calculator Alpha asks for nothing beyond the download.

UpkeepUpdate frequency

HiWord.AI ships an update daily, Formula Calculator Alpha every 9 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 3 level
HiWord.AI versus Formula Calculator Alpha: the parameters behind the verdict, then further details
ParameterHiWord.AIFormula Calculator Alpha
PriceFreeFree
Update frequencyDaily — betterEvery 9 days
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS18.0 — better26.2
Further details — not scored
Size63 MB3 MB
Age rating4+4+
DeveloperVinehoo.com子宸 魏

In-app purchases

1 purchases

HiWord.AI

Subscriptions1
  • HiWord.AI Pro$39.991 Year
None

Formula Calculator Alpha

No in-app purchases

Questions

Is HiWord.AI free?
HiWord.AI is free to download, with in-app purchases available.
Is Formula Calculator Alpha free?
Formula Calculator Alpha is free to download, with no in-app purchases.
Do HiWord.AI or Formula Calculator Alpha have ads?
Neither HiWord.AI nor Formula Calculator Alpha shows ads.
Which is updated more often, HiWord.AI or Formula Calculator Alpha?
HiWord.AI ships an update daily, and Formula Calculator Alpha every 9 days. Most recently, HiWord.AI was updated on November 5, 2026 and Formula Calculator Alpha on October 31, 2026.

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