Comparison

iOAK vs Learning World Book 3

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

Head to head
About

iOAK

This app uses your device's camera to track your movements and translate them into switch controls. Create custom air switches or connect to external devices to interact with your environment and smart home gadgets.

Highlights
  • Camera-based motion tracking
  • Customizable air switches
  • External switch integration (Bluetooth)
  • Smart home device control (HomeKit/Matter)
  • Shortcut automation
Features
Read full description

iOAK uses the camera to visualize the movement of the user and enables them to control switches. Key Functions: - Motion History This function colors the moved body parts with purple, blue, …, and red according to the frequency of the movement. - Air Switches Draw rectangles on the camera screen to serve as non-contact switches, called “Air Switches.” These can be activated by detecting movement within the designated areas. A red circle indicating the magnitude of the detected movement moves left or right along a slider on the screen. When it crosses the position of the sensitivity adjustment knob, a switch signal is output. For switch output integration, the user can select an external switch connected via Bluetooth (such as a "Relay" or the battery-shaped switch "MaBeee"), or the built-in “Home” or “Shortcuts” apps on the iPhone/iPad. - The “Relay” device works with equipment that accepts switch input. - The “MaBeee” device controls battery-operated equipment. - The “Home” app allows control of smart home devices, i.e., smart lights, plugs, and remotes, compatible with "Matter" or "HomeKit". - The “Shortcuts” app allows execution of a series of predefined actions (Shortcuts) on the iPhone or iPad. (*) (*) When linking with the “Shortcuts” app, add the “Open iOAK” action at the end of the registered “Shortcut” (the sequence of actions) so that it automatically returns to “iOAK” operation after executing the Shortcut. Compatible relay products are as follows: - DSD TECH SH-BT01A Bluetooth Module - DSD TECH 2-Channel Bluetooth 4.0 BLE Relay Module - DSD TECH SH-BT04B Bluetooth Module - TinySine TOSR141 - 4 Channel Bluetooth Relay - Switch Science ISP1507 Bluetooth-Relay Board

About

Learning World Book 3

This app offers English language learning content for elementary school students, focusing on grammar, vocabulary, and creative expression. It includes dialogues, songs, and chants to enhance listening skills and encourage practice.

Highlights
  • Grammar and vocabulary lessons
  • Creative expression activities
  • Listening skill enhancement
  • Dialogues, songs, and chants
  • Practice with repeat-pause tracks
  • Rhythm-based practice for chants
Features
Read full description

Learning World 3 Second Editionテキスト完全準拠CDをアプリ化! シリーズ売上No.2。小学校4~5年向けテキスト。 小学校高学年レベル。 思春期の子供達にチャンツが大好評!反抗期の男の子もこれならOKとお墨付きのテキストです。テキスト右ページはクリエイティブな内容で「言語」を使って自己表現する楽しさを教えてくれます。Learning World 2までの復習に加え、There is/are、不規則名詞の単複、未来形will、一般動詞の過去形変化、wh疑問文と答え方、前置詞between, in front of、不定詞、比較級、最上級、過去進行形等を学習します。 ご家庭で日常的に、英語教室への送り迎えの車の中でもどんどん聴くことが、リスニング力アップにつながります。 <対象> ・Learning World 2修了者、児童英語暦4~5年以上(他シリーズから移行時の目安) <概要> ■ 中本幹子 監修 ・CDディスク1枚分 ・収録時間:74分30秒 ・トラック数:全97 ・音声の内容:ダイアログ7 / チャンツ12曲 / スピーチ8例 / ストーリー2つ / 手紙1例 / 歌5曲 / 単語読み 188語 *ダイアログ、スピーチ、ストーリー、手紙の音声には、リピートポーズ入りのトラック付。後について練習できます。 *チャンツの音声は歌詞入りの後、リズムのみの音声がトラックがあり、リズムにのせて練習できます。

Screenshots

iOAK4 screens
Learning World Book 32 screens

Verdict

The call

The clearest difference is review sentiment: iOAK at 75% against Learning World Book 3's 0%. iOAK also leads on update cadence (every 9 months vs every 52 months). Learning World Book 3's advantage is price ($2.99 vs $4.99) and iOS requirement (11.0 vs 15.0). On ads, in-app purchases, monetization model 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

iOAK costs $4.99 and Learning World Book 3 $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

iOAK ships an update every 9 months, Learning World Book 3 every 52 months. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 4 level
iOAK versus Learning World Book 3: the parameters behind the verdict, then further details
ParameteriOAKLearning World Book 3
Price$4.99$2.99 — better
Positive reviews75.0% of reviews — better0.0% of reviews
Update frequencyEvery 9 months — betterEvery 52 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.011.0 — better
Further details — not scored
Size13 MB76 MB
Age rating4+4+
DeveloperatacLab Co., Ltd.APRICOT PUBLISHING CO., LTD.

Customer experience

iOAK

Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Learning World Book 3

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

iOAK

No in-app purchases

None

Learning World Book 3

No in-app purchases

Questions

Is iOAK free?
iOAK costs $4.99, with no in-app purchases.
Is Learning World Book 3 free?
Learning World Book 3 costs $2.99, with no in-app purchases.
Do iOAK or Learning World Book 3 have ads?
Neither iOAK nor Learning World Book 3 shows ads.
Which is updated more often, iOAK or Learning World Book 3?
iOAK ships an update every 9 months, and Learning World Book 3 every 52 months. Most recently, iOAK was updated on October 7, 2026 and Learning World Book 3 on October 8, 2026.

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