Comparison

Easy Mailer Chinese Keyboard vs ZeroOne Keyboard

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

Head to head
About

Easy Mailer Chinese Keyboard

Enhance your Chinese typing experience on iPhone with extended keys for faster messaging and text editing. Features include arrow keys for caret movement and dedicated keys for special characters and punctuation.

Highlights
  • Extended keys for Chinese characters
  • Arrow keys for caret movement
  • Dedicated keys for punctuation
  • Auto-determination of marks
  • Multi-input keys for repeated marks
Read full description

Type messages in Chinese easier and faster with our extended keys for the your iPhone/iPod Chinese keyboard. NOTE1: Make sure you have your Chinese language keyboard selected in your iPhone. NOTE2: The extension keys only work in this application. Please check out "Easy URL Keyboard Free" first. ***************************************************** SPECIAL FEATURES * Arrow keys to move caret right and left faster for easier text editing * Dedicated Keys equipped above Chinese keyboard for typing extend characters, quotation marks and more. Setting Menu Added (Tap “Tools” icon): * Auto determination of marks: Timer equipped for auto-determination of marks - you can easily repeat entering same marks with our multi-input keys. (ex. " !! ") **************************************************** + Also Available!! + - AEI Keyboard Note for Mail / SMS Series – (English, Spanish, French, German, Italian, Portugese, Swedish) ========================= - Easy Mailer Keyboard Series - ========================= (English, Japanese, Chinese, Spanish, Italian, German, Russian, Portugese, Korean, Danish, Swedish, Rumanian) Please look at our stie! www.4us.jp

About

ZeroOne Keyboard

Type Chinese using various input methods like Pinyin, nine-key, or Shuangpin. Customize your keyboard with personal schemes, sound packs, and key shortcuts. Offers helpful tools like emoji, snippets, and unit conversion, with on-device processing for privacy.

Highlights
  • Multiple Chinese input methods (Pinyin, nine-key, Shuangpin)
  • Personalized Shuangpin schemes and on-key hints
  • Customizable nine-key shortcuts and function panel
  • Variety of sound packs with adjustable playback
  • On-device processing for privacy
  • Integrated typing tools (emoji, snippets, unit conversion)
Features
Read full description

Type Chinese with Pinyin, nine-key, Shuangpin or Dachen Zhuyin. Use a familiar input method for everyday Chinese messages and notes. Everyday typing, candidates and personal learning are processed on your device. Basic typing works without Full Access. Learn ZeroOne Shuangpin with on-key hints, or use a personal Shuangpin scheme. Zhuyin supports tone-marked and tone-omitted input, Traditional Chinese candidates, phrase composition, candidate selection, undo, and redo. Choose Taiwan Traditional Chinese forms in settings. Make the keyboard yours • Shuangpin, full pinyin, and nine-key layouts, personal shuangpin schemes, and auxiliary-code hints. • Customize the nine-key 1 key: tap for your primary shortcut, hold for a function panel, or enter the digit 1. • Preview and crop custom key photos. Settings apply immediately. • Choose from several sound packs, including five original ZeroOne packs, with an option to play only when text is committed. Tools while you type Emoji categories, recents, snippets, numbers, symbols, calculations, amounts, unit conversion, dates, solar terms, and color tools. On-device processing and optional sharing Everyday Chinese typing, candidates, and personal learning are processed on your device. Input content is not collected or uploaded to the developer. There are no ads or third-party tracking analytics. Basic typing works without Full Access. Enable it when you want to share photos, sound settings, and preferences with the main app. Cross-device paste is optional. When enabled, it syncs clipboard content through your own private iCloud database. To start, add ZeroOne in Settings > General > Keyboard > Keyboards > Add New Keyboard, then hold the globe key in a text field to switch. Terms of Use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Easy Mailer Chinese Keyboard4 screens
ZeroOne Keyboard4 screens

Verdict

The call

The clearest difference is price: ZeroOne Keyboard at Free against Easy Mailer Chinese Keyboard's $0.99. ZeroOne Keyboard also leads on rating (4.2 vs 1.0) and review sentiment (67% vs 33%). Easy Mailer Chinese Keyboard's advantage is in-app purchases (none vs 4). On ratings volume, ads, device support and iOS requirement 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

ZeroOne Keyboard is free to download; Easy Mailer Chinese Keyboard costs $0.99 up front. ZeroOne Keyboard sells 4 one-off in-app purchases. Easy Mailer Chinese Keyboard asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ZeroOne Keyboard holds the better App Store score, 4.2 against 1.0. Both are backed by a comparable volume of ratings — 2 and 5 respectively. Written reviews point the same way: 33% of Easy Mailer Chinese Keyboard's written reviews are positive against 67% of ZeroOne Keyboard's.

UpkeepUpdate frequency

Easy Mailer Chinese Keyboard ships an update every 3 months, ZeroOne Keyboard every 4 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard6 real differences · 4 level
Easy Mailer Chinese Keyboard versus ZeroOne Keyboard: the parameters behind the verdict, then further details
ParameterEasy Mailer Chinese KeyboardZeroOne Keyboard
Price$0.99Free — better
Rating1.0 (2 ratings)4.2 (5 ratings) — better
Positive reviews33.3% of reviews66.7% of reviews — better
Number of ratings25 — better
Update frequencyEvery 3 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree — better
DevicesiPhone, iPodiPhone, Mac
Requires iOS15.6 — better16.0
Further details — not scored
Size3 MB44 MB
Age rating4+4+
DeveloperToshihiro Nakane海平 吴

Customer experience

Easy Mailer Chinese Keyboard

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

ZeroOne Keyboard

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Easy Mailer Chinese Keyboard

No in-app purchases

4 purchases

ZeroOne Keyboard

One-time4
  • One Cup of Tea$0.99
  • Two Cups of Tea$2.99
  • Afternoon Tea$3.99
Show 1 more
  • 01+ Lifetime Supporter$9.99

Questions

Is Easy Mailer Chinese Keyboard free?
Easy Mailer Chinese Keyboard costs $0.99, with no in-app purchases.
Is ZeroOne Keyboard free?
ZeroOne Keyboard is free to download, with in-app purchases available.
Which has better reviews, Easy Mailer Chinese Keyboard or ZeroOne Keyboard?
ZeroOne Keyboard is rated higher. Easy Mailer Chinese Keyboard averages 1.0 out of 5 from 2 ratings, while ZeroOne Keyboard averages 4.2 from 5 ratings.
Do Easy Mailer Chinese Keyboard or ZeroOne Keyboard have ads?
Neither Easy Mailer Chinese Keyboard nor ZeroOne Keyboard shows ads.
Which is updated more often, Easy Mailer Chinese Keyboard or ZeroOne Keyboard?
Easy Mailer Chinese Keyboard ships an update every 3 months, and ZeroOne Keyboard every 4 days. Most recently, Easy Mailer Chinese Keyboard was updated on November 3, 2026 and ZeroOne Keyboard on November 5, 2026.

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