READING & vs Buff
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
READING &
Access a vast digital library of high-quality English books from Oxford University Press and Collins. This app offers a multi-dimensional reading system designed for efficient language acquisition, including vocabulary games, listening, reading, and speaking exercises. Enjoy personalized learning with features like pronunciation options, audio speed control, and a built-in dictionary.
- Digital library of Oxford and Collins English books
- 5-Step Multi-Dimension Reading system
- Vocabulary games, listening, reading, and speaking exercises
- British & American pronunciation options
- Audio speed control and recording feature
- Built-in dictionary and personalized vocabulary list
- Offline reading mode
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Meet the premium readers from the Oxford University Press and Collins at ‘READING &’! Oxford Reading Tree (ORT) and Collins Big Cat series are now available at READING &! ORT, the world’s best-seller readers used in 80% of the primary schools in the UK! Big Cat, is the popular series beloved by over 10,000 libraries in the primary schools in the UK! Have your own digital library that houses a massive collection of high-quality English books, and enjoy reading wherever you are and whenever you want! Awesome #1. 5 times more efficient 5 steps of multi-dimensional reading system is applied in every book. READING & transformed one-dimensional paper books to multi-functional digital contents that carries out the holistic process of language acquisition: vocabulary game, listening, reading, speaking, spelling check and after activities. Users can benefit from 5 times more efficient language learning system through our productive 5-Step Multi-Dimension Reading. Awesome #2. Up to 4 different devices Use up to 4 different mobile devices at a time! Every reading data synchronizes. We also support offline mode. Download your books and read them offline. Awesome #3. Additional features for your self-study - Both British & American pronunciation available (some books might provide only one) - Audio speed control - Record your own speaking - Listen to the audio per page or sentence - Built-in dictionary (Oxford English-Korean dictionary with 185,000 words) - Personalized vocabulary list - Pen tool: highlight or underline important vocabulary, make in-page highlights - Reading Diary: store your own speaking files This application may require access to the permissions below (to avoid the malfunction). - [Optional] Microphone: to record audio in Stage 3 and 4 - [Optional] Photos: to register your profile picture Instructions to turn the permission off: - Microphone: Settings > Privacy > App permissions > Microphone > turn off READING & - Photo: Settings > Privacy > App permissions > Storage > turn off READING & If you disable access for these permissions, you may use the app but several features of your device may no longer function as intended.
Buff
This app helps students from specific language academies reinforce vocabulary learned through i-Learning/p-Learning and prepare for word tests. Users can review learned words, track their progress, and level up their 'word power' as they memorize more terms.
- Vocabulary training for tests
- Review learned words
- Track memorization progress
- Level up word power
- Character customization
- Tablet and phone compatible
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※ Buff: Word Power 는 청담어학원 및 April α 어학원 수강생이 단어를 재밌게 학습할 수 있도록 도와주는 앱입니다. - Training 을 통해 i-Learning/p-Learning 에서 익힌 단어와 교육부 지정 단어를 학습할 수 있습니다. - Training 을 통해 단어 시험 대비를 해보세요. - 단어장에서 지금까지 학습했던 단어를 반복 학습할 수 있습니다. - 내가 암기한 단어 수에 따라 워드파워가 성장하고, 레벨업 할 수 있습니다. ※ Buff: Word Power의 주요 기능 - 태블릿과 휴대폰에서 이용 가능 - 청담어학원, THE OPEN 청담어학원, April α 어학원 재원생만 사용 가능 - 단어장을 통해 지금까지 학습한 단어를 점검 및 복습 가능 - 단어장에서 나와 상위 10%가 마스터한 단어 개수 확인 가능 - 캐릭터 설정 및 변경, 레벨업에 따른 아우라 획득 가능
Screenshots
Verdict
The clearest difference is review sentiment: READING & at 79% against Buff's 42%. READING & also leads on rating (3.4 vs 3.0). Buff's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (13.1 vs 17.0). On price, ratings volume, update cadence and ads 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
READING & holds the better App Store score, 3.4 against 3.0. Both are backed by a comparable volume of ratings — 10 and 5 respectively. Written reviews point the same way: 79% of READING &'s written reviews are positive against 42% of Buff's.
READING & ships an update every 2 weeks, Buff every 3 weeks. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.
| Parameter | READING & | Buff |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (10 ratings) — better | 3.0 (5 ratings) |
| Positive reviews | 79.2% of reviews — better | 41.7% of reviews |
| Number of ratings | 10 — better | 5 |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 13.1 — better |
| Further details — not scored | ||
| Size | 202 MB | 228 MB |
| Age rating | 4+ | 4+ |
| Developer | iPortfolio Inc. | CREVERSE, Inc. |
Customer experience
READING &
Buff
In-app purchases
READING &
No in-app purchases
Buff
No in-app purchases
