Comparison

Unicode Pad Pro with keyboards vs Chemistry Keyboard

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

Head to head
About

Unicode Pad Pro with keyboards

Access and use over 155,000 Unicode characters with this comprehensive character map app. It features customizable keyboards for any iOS app, bundled and importable fonts, and detailed character information. Seamlessly copy, search, and organize characters for diverse writing needs.

Highlights
  • Access 155,000+ Unicode characters
  • Customizable keyboards for any iOS app
  • Install and import custom fonts
  • Detailed character information and search
  • Copy characters to clipboard
  • Notepad for frequently used characters
  • Drag and drop support
Features
Read full description

Unicode Pad Pro is the ultimate Unicode character map app for the iPad. Offering an extensive database of over 155,000 characters, it supports the latest Unicode 16 standard. This powerful tool features customizable keyboards, which can be used across any iOS app, bundled fonts, and the ability to import custom fonts. Users can easily browse, search, and copy characters, access detailed character information, and enjoy seamless multitasking with other apps. Perfect for everything from scientific notation to creative writing, Features: • Custom keyboards can be used in any other iOS app • Install bundled fonts for use in other apps • Import and use any custom font into the app • Support for Unicode 15.1 standard, which has many new symbols. • Huge selection of symbols (thousands), in fact all that are available on your device. Database itself actually contains data for all characters (over 140000!). • Copy characters to clipboard for use in other apps, like web, mail, chat, notes... any iOS app! • Detailed information on each Unicode character, including encodings, extra info, similar characters and availability in fonts • Extensive gesture support for smooth workflow! • Drag and drop support for text, PNG and PDF graphics! • Notepad with customizable keyboards, for your often-used characters and for copying several characters at once. Great for casual writing, too! • HTML entity names for relevant characters • UNIHAN english definitions for CJK ideograms for many characters • Egyptian hieroglyph definitions • Ideographic Description Sequences (IDS) for CJK ideograms • Share your custom keyboards with your friends! • Search for characters by name, hexadecimal codepoint or glyph! Find similar and related characters instantly! • Great support for iPad multitasking - works great together with other apps • Streamlined design, specifically optimized for each device. Support for all device orientations and Retina display.  • Support for dark mode. • Fully tested on latest iOS • Support for Backspace, New line, Shift and Alternate special keys on custom keyboards. • Custom keyboard sizes up to 6x16=96 keys. • Flick left and right for next and previous characters in detail view • View extended character descriptions on Wikipedia, unicode.org charts or Emojipedia right from inside the app! • Copy glyphs as PDF graphics or PNG images • Sections of favourite and recently copied characters • One universal application works on iPhone, iPod and iPad! • Reference booklet of characters available on modern computers! Paper Unicode maps are over 1000 pages long! • Quick access to many groups of commonly used symbols! • Great for scientific, mathematical and physics notation, handles many superscripts, subscripts and other symbols! • Excellent for phonetic notation! • Developers: see which characters are available on your iOS device and in which fonts. • Perfect for writing Unicode poetry! • Awesome for making interesting app names!

About

Chemistry Keyboard

Easily input chemical formulas with specialized superscript, subscript, and arrow characters. Access lowercase Greek letters and other chemistry-related Unicode symbols. This keyboard extension works offline and includes a demo for viewing Wikipedia data.

Highlights
  • Superscript characters
  • Subscript characters
  • Arrow glyphs
  • Lowercase Greek characters
  • Chemistry Unicode characters
  • Offline functionality
  • Wikipedia data lookup demo
Features
Read full description

The Chemistry Keyboard is a specialized Keyboard Extension for anyone who needs to enter chemical formulae. Ever need to input Hg²⁺+2 I⁻ on your phone and can't figure out how to get those nice superscript or subscript 2s. Or proper arrow glyphs? Quickly generate superscripts: ⁰ ¹ ² ³ ⁴ ⁵ ⁶ ⁷ ⁸ ⁹ ⁽ ⁾ ⁺ ⁻, subscripts: ₀ ₁ ₂ ₃ ₄ ₅ ₆ ₇ ₈ ₉ ₍ ₎ ₊ ₋, and arrows. lowercase Greek characters available in landscape mode. and other chemistry related Unicode characters. The app itself demonstrates the keyboard's use by allowing text entry and looking up data from Wikipedia. Unlike many keyboard extensions, this keyboard does not require network access. It's entirely self contained.

Screenshots

Unicode Pad Pro with keyboards4 screens
Chemistry Keyboard3 screens

Verdict

The call

The clearest difference is price: Chemistry Keyboard at $1.99 against Unicode Pad Pro with keyboards's $6.99. Unicode Pad Pro with keyboards's advantage is ratings volume (200 vs 17) and iOS requirement (13 vs 15.0). On rating, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Unicode Pad Pro with keyboards costs $6.99 and Chemistry Keyboard $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Unicode Pad Pro with keyboards against 4.6 for Chemistry Keyboard. That said, the two scores are not equally well evidenced: Unicode Pad Pro with keyboards has 200 ratings behind it against 17, so its average is the more settled of the two. Written reviews are what separate them: 81% of Unicode Pad Pro with keyboards's written reviews are positive against 88% of Chemistry Keyboard's.

UpkeepUpdate frequency

Unicode Pad Pro with keyboards ships an update every 4 months, Chemistry Keyboard every 6 months. Both last shipped on November 1, 2026.

Scorecard3 real differences · 7 level
Unicode Pad Pro with keyboards versus Chemistry Keyboard: the parameters behind the verdict, then further details
ParameterUnicode Pad Pro with keyboardsChemistry Keyboard
Price$6.99$1.99 — better
Rating4.5 (200 ratings)4.6 (17 ratings) — better
Positive reviews81.0% of reviews87.5% of reviews — better
Number of ratings200 — better17
Update frequencyEvery 4 months — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13 — better15.0
Further details — not scored
Size259 MB9 MB
Age rating4+4+
DeveloperZiga KranjecGenerally Helpful Software

Customer experience

Unicode Pad Pro with keyboards

All ratings198 ratings
Positive88.4%
Neutral3.0%
Negative8.6%
Written reviews84 reviews
Positive81.0%
Neutral8.3%
Negative10.7%

Chemistry Keyboard

All ratings17 ratings
Positive94.1%
Neutral0.0%
Negative5.9%
Written reviews24 reviews
Positive87.5%
Neutral0.0%
Negative12.5%

In-app purchases

None

Unicode Pad Pro with keyboards

No in-app purchases

None

Chemistry Keyboard

No in-app purchases

Questions

Is Unicode Pad Pro with keyboards free?
Unicode Pad Pro with keyboards costs $6.99, with no in-app purchases.
Is Chemistry Keyboard free?
Chemistry Keyboard costs $1.99, with no in-app purchases.
Which has better reviews, Unicode Pad Pro with keyboards or Chemistry Keyboard?
Chemistry Keyboard is rated higher. Unicode Pad Pro with keyboards averages 4.5 out of 5 from 200 ratings, while Chemistry Keyboard averages 4.6 from 17 ratings.
Do Unicode Pad Pro with keyboards or Chemistry Keyboard have ads?
Neither Unicode Pad Pro with keyboards nor Chemistry Keyboard shows ads.
Which is updated more often, Unicode Pad Pro with keyboards or Chemistry Keyboard?
Unicode Pad Pro with keyboards ships an update every 4 months, and Chemistry Keyboard every 6 months. Most recently, Unicode Pad Pro with keyboards was updated on November 1, 2026 and Chemistry Keyboard on November 1, 2026.

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