Comparison

正字戰隊 vs RainbowSky

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

Head to head
About

正字戰隊

Features
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在遙遠的語文世界裡,每一個正確的中文字都蘊藏着守護知識的光芒。 可是有一天,錯別字魔物從黑暗的裂縫中湧現,牠們悄悄改寫書本、告示與孩子們的記憶,令熟悉的字形變得模糊,令清晰的句子失去力量。 為了阻止混亂擴散,正字戰隊在秘密基地集結。隊員們必須冷靜觀察每一道題目,選出真正正確的中文字,把文字的光芒化成攻擊,擊退潛伏各地的魔物。 每一次答對,都是一次守護語文世界的小勝利;每一次出發,都是向知識與勇氣邁進的一步。 五位正字戰隊的成員!身穿五彩緊身衣,腳踏巨大機械人,誓將所有錯字魔物消滅! 趕快收集傳說中的武器、練成傳說中的絕技、戰鬥吧!年輕人! *「正字戰隊」是一個以正字為主題,寓學習於娛樂的教育軟件,讓玩家可以在輕鬆愉快(或許是緊張刺激才對)的氣氛下學習不同詞語的正確寫法,減少錯別字,增強語文能力。

About

RainbowSky

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Your e-books, your pedagogy. Cater your student's need. RainbowOne lets you create your own e-Learning materials and hold a truly interactive and engaging e-lesson. E-books can be easily created and adjusted freely to suit your needs. Our interactive e-lesson equipped with functions which helps you to save time. Exercises can be auto-corrected, and the learning data are analyzed to let you know more about your students’ ability. And the most important is, it is fun! Innovative e-Book Editor: Total Design Freedom We offer 80+ comprehensive tool and 10000+ images for you to tailor-make your e-books. You can start with a free canvas or choose from our templates. With easy drag and drop you can customize anything. Cross-platform lesson: Interact with your students Lesson can be held in a cross-platform environment. You can group your students and hold a competition, voting or discussion. We also provide page-sync, black-out screen and other functions that helps you manage your class. Instant Charts: Know your students well All questions with pre-set answers are instantly corrected. Learning data are automatically collected and analyzed. You can easily find out the learning difficulties of your students. Bookstore with editable e-books Share your knowledge! Here we have a bookstore for you to share your materials in public, and you can read the e-books from the bookstore to get some inspiration, or even download and edit it to suit your needs.

Screenshots

正字戰隊4 screens
RainbowSky4 screens

Verdict

The call

The clearest difference is in-app purchases: RainbowSky at none against 正字戰隊's 1. RainbowSky also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (12.0 vs 18). 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. 正字戰隊 sells 1 one-off in-app purchase. RainbowSky asks for nothing beyond the download.

UpkeepUpdate frequency

正字戰隊 ships an update every 2 months, RainbowSky every 2 weeks. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
正字戰隊 versus RainbowSky: the parameters behind the verdict, then further details
Parameter正字戰隊RainbowSky
PriceFreeFree
Rating3.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS1812.0 — better
Further details — not scored
Size36 MB292 MB
Age rating4+4+
DeveloperYan Kin LEUNGOpen Knowledge Association Ltd.

In-app purchases

1 purchases

正字戰隊

One-time1
  • 正字戰隊 消除廣告(加送十萬金幣)$0.99
None

RainbowSky

No in-app purchases

Questions

Is 正字戰隊 free?
正字戰隊 is free to download, with in-app purchases available.
Is RainbowSky free?
RainbowSky is free to download, with no in-app purchases.
Do 正字戰隊 or RainbowSky have ads?
Neither 正字戰隊 nor RainbowSky shows ads.
Which is updated more often, 正字戰隊 or RainbowSky?
正字戰隊 ships an update every 2 months, and RainbowSky every 2 weeks. Most recently, 正字戰隊 was updated on November 6, 2026 and RainbowSky on October 31, 2026.

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