Comparison

READING & vs Sayello

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

Head to head
About

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.

Highlights
  • 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
Read full description

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.

About

Sayello

Read full description

수업에서 배운 영어, 실제로 얼마나 말해봤나요? Sayello(세이엘로)는 수업에서 배운 단어와 문장을 AI 선생님과의 1:1 통화로 이어주는 AI 원어민 전화영어예요. 예약 시간이 되면 앱에서 전화처럼 받고, 오늘의 표현으로 5분간 말하기를 시작해요. 아이의 반응에 따라 따라 말하기, 문장 만들기, 자유대화로 맞춤 학습이 진행돼요. 정답을 말하지 못해도, 머뭇거려도 괜찮아요. 아이의 반응별로 다양하게 말하기를 독려하고, 손들기로 한국어 도움을 요청할 수도 있어요. AI 선생님은 아이가 한 말을 듣고 현재 대화의 맥락에 맞춰 다음 질문을 이어가요. 익숙한 표현을 따라 말하는 데서 끝내지 않고, 아이 자신의 이야기로 말해보도록 돕습니다. Sayello에서 할 수 있는 것 - 오늘의 학습 표현과 예정 통화 확인 - AI 선생님과 1:1 실시간 영어 통화 - 아이 수준에 맞춘 단어·문장·자유대화 - 대화가 막히는 순간을 돕는 힌트와 손들기 - 주간 통화 일정과 말하기 기록 확인 수업 후 5분, 배운 표현이 아이의 말이 되는 시간을 만들어보세요. ※ Sayello는 제휴 교육기관 회원을 위한 서비스입니다. 이용을 위해 교육기관에서 제공한 계정 또는 이용 권한이 필요할 수 있습니다.

Screenshots

READING &4 screens
Sayello4 screens

Verdict

The call

The clearest difference is update cadence: Sayello at daily against READING &'s every 2 weeks. Sayello also leads on iOS requirement (15.0 vs 17.0). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

READING & ships an update every 2 weeks, Sayello daily. The most recent releases landed on October 21, 2026 and October 17, 2026 respectively.

Scorecard2 real differences · 8 level
READING & versus Sayello: the parameters behind the verdict, then further details
ParameterREADING &Sayello
PriceFreeFree
Rating3.4 (10 ratings) — better—
Positive reviews79.2% of reviews—
Number of ratings10 — better—
Update frequencyEvery 2 weeksDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size202 MB233 MB
Age rating4+4+
DeveloperiPortfolio Inc.Hodoo Labs Co., Ltd.

In-app purchases

None

READING &

No in-app purchases

None

Sayello

No in-app purchases

Questions

Is READING & free?
READING & is free to download, with no in-app purchases.
Is Sayello free?
Sayello is free to download, with no in-app purchases.
Do READING & or Sayello have ads?
Neither READING & nor Sayello shows ads.
Which is updated more often, READING & or Sayello?
READING & ships an update every 2 weeks, and Sayello daily. Most recently, READING & was updated on October 21, 2026 and Sayello on October 17, 2026.

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