Comparison

OpenABC vs Ogden 850

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

Head to head
About

OpenABC

This app offers a comprehensive language learning path, integrating listening, speaking, reading, and writing. It uses visual aids, handwriting recognition, and pronunciation feedback to help users master new vocabulary and grammar in context. Content adapts to the learner's level and includes various practice modes.

Highlights
  • Visual word learning
  • Handwriting dictation
  • Pronunciation feedback
  • Contextual grammar practice
  • Offline content access
  • Multiple learner profiles
Features
Read full description

OpenABC brings listening, speaking, reading, and writing into one connected learning path: understand a word, write it by hand, say it aloud, and meet it again in real sentences and listening practice. LEARN WORDS WITH PICTURES Pointer lines connect each word to the exact object or part it describes, so meaning is understood before it is memorized. HANDWRITING DICTATION Write spellings directly on screen and receive on-device recognition. iPad supports both finger input and Apple Pencil. SPEAKING PRACTICE Practice situational phrases and full sentences with clear audio demonstrations and on-device pronunciation and intonation feedback. Recording only starts when you choose. GRAMMAR YOU CAN SPEAK Key structures appear inside useful, contextual sentences. Understand the situation, then say the pattern aloud instead of only answering grammar questions. LISTEN AND REPEAT ANY LINE Daily warm-ups, dialogues, and sentence-by-sentence content keep playback and speaking controls close to every line. CONTENT THAT GROWS WITH YOU Study vocabulary, everyday listening and speaking, life stories, children's content, graded readers, English audiobooks, exam listening, pronunciation, and spelling. Review is planned by vocabulary level, learning history, and memory intervals. MULTIPLE LEARNERS Create separate learner profiles on one device. Vocabulary level, progress, review history, and preferences stay independent for each person. OFFLINE AND AD-FREE Downloaded content works offline. OpenABC contains no third-party ads, does not use advertising identifiers, and does not track you across apps or websites. Learning data stays on your device. ONE-TIME UNLOCK Permanent free samples include selected content and every practice mode. One purchase unlocks the full version—no subscription. Restore Purchase is available when changing devices.

About

Ogden 850

Features
Read full description

Kay Ogden helps you learn English with Ogden Basic English — the practical 850-word core and the 1368-word library. British and American audio is now built into the app. Tap any word, definition, or example and hear it immediately, even on a plane or a subway. New Concept English Book 1 audio is included; Books 2–4 can be downloaded when you need them. Study with flashcards, IPA pronunciation, phrases, stories, daily review, and New Concept lessons. When you need help writing a sentence, AI writing assistance is there. Kay Ogden is the focused native iOS edition for learners who want a calm, classic vocabulary routine — offline first. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

OpenABC4 screens
Ogden 8504 screens

Verdict

The call

The clearest difference is update cadence: OpenABC at every 3 days against Ogden 850's every 3 weeks. On price, ads, in-app purchases 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. OpenABC sells 1 one-off in-app purchase and Ogden 850 sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

OpenABC ships an update every 3 days, Ogden 850 every 3 weeks. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 8 level
OpenABC versus Ogden 850: the parameters behind the verdict, then further details
ParameterOpenABCOgden 850
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size357 MB804 MB
Age rating4+4+
Developer帅 周小琦 王

In-app purchases

1 purchases

OpenABC

One-time1
  • 解锁完整版$3.99
2 purchases

Ogden 850

Subscriptions2
  • AI Writing Monthly$0.991 Month
  • Kay Support$1.991 Month

Questions

Is OpenABC free?
OpenABC is free to download, with in-app purchases available.
Is Ogden 850 free?
Ogden 850 is free to download, with in-app purchases available.
Do OpenABC or Ogden 850 have ads?
Neither OpenABC nor Ogden 850 shows ads.
Which is updated more often, OpenABC or Ogden 850?
OpenABC ships an update every 3 days, and Ogden 850 every 3 weeks. Most recently, OpenABC was updated on October 31, 2026 and Ogden 850 on October 24, 2026.

Other comparisons