Comparison

CharMap vs ℂKey

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

Head to head
About

CharMap

Explore and manage Unicode characters with this utility. Organize favorites, view details, and copy characters to your clipboard. Use the custom keyboard to insert them anywhere and sync collections across devices.

Highlights
  • Browse curated character categories
  • Organize favorite characters
  • View character details and copy to clipboard
  • Insert characters with custom keyboard
  • Discover characters and blocks
  • Sync collections across devices
  • Preview system fonts
Features
Read full description

CharMap allows to you discover, organize, and use unicode characters. FEATURES • Browse a collection of curated character categories, and organize your favourite characters into custom collections. • View character details and copy characters to the clipboard. • Enable the CharMap keyboard to insert characters wherever custom keyboards are supported. • Discover unicode characters and blocks using a dedicated unicode browser. • Automatically sync your collections between devices. • Quickly access your custom collections using the collection widget. • Browse and preview system fonts. • No ads, trackers, or analytics. Your data is stored on-device, and optionally synced across your private iCloud account.

About

ℂKey

Create and customize your own keyboard layouts with unique keys and multiple panes. Ideal for specialized typing needs like math, science, or unique character sets. Includes a Unicode character picker and editing tools.

Highlights
  • Create custom keyboard keys
  • Organize keys into multiple panes
  • Built-in Unicode character picker
  • Editable text view for testing
  • Pre-made layouts (QWERTY, Dvorak, Maths)
  • Alternate key forms
  • Advanced key editing and batch operations
Features
Read full description

Build your own keyboard - you choose the keys! Great for maths & science work, fans of more obscure keyboard layouts, or just better expressing yourself. Scroll down for an overview of the premade layouts and a detailed feature breakdown. NOTES • Add the keyboard by navigating to Settings -> General -> Keyboard -> Keyboards -> Add New Keyboard… • Unicode characters may not display correctly in some fonts. • Check out the subreddit at reddit.com/r/ckey/ OVERVIEW • Add keys to your keyboard, which can type any text of any length. • Organise related keys into multiple pages (‘panes’). • Includes handy editing features and plenty of options. • Built-in unicode character picker for finding new characters to add to your keyboard. • Editable text view for trying out your keyboard designs. DEFAULT LAYOUTS • QWERTY, Dvorak, Dvorak Left Handed - Layouts inspired by the originals, with an original collection of symbols. - Use a reduced number of keys to accommodate smaller screens. • Symbols: contains some more rarely used symbols not present on the standard layouts. • Maths: a layout designed for general maths, with digits, pi & infinity, and a wide set of operations. • Formal Languages: an example of a more complex, specialist layout. • Superscript & Subscript • x/y: all unicode fractions. FEATURES Keyboard: • Your keys - the main content of the keyboard. • Multiple panes, to organise related keys. • A space key. • Control keys: backspace, keyboard picker, dismiss, return. • Alternate key forms. - Hold a key to type it's alt form. - Use the alt key to temporarily switch the forms around. - Alternate forms could be capital letters, inverse operations, or something completely different. • Swipe left on the pane list to give your keys more room in longer typing sessions. - Swipe in from the left edge to bring the list back. App: • Edit panes and keys in a view resembling the keyboard itself. - Tap a key to change what it types: + Keys can type any number of any unicode characters, multiline text supported. + Optionally use a custom keycap, instead of showing the key's output. + Edit the alt mode version of the key by tapping with alt mode enabled. - Hold a key to bring up the edit menu: + Edit [with 1 selected] - bring up a larger version of the key editor. + Swap [with 2 selected] - switch the positions of two keys. + Gather [with >1 selected] - collect the selected keys at one spot. + Remove alt - remove the custom alt state, making the key match its normal state in alt mode. + Duplicate - quickly clone a key. + Cut, copy, and paste - use their established meanings (the pasteboard is shared between panes). + Delete - deletes a key. + Insert - inserts a key at the spot of the current selection. - Enter edit mode for serious changes: + Drag (before selecting anything) to reorder. + Tap keys to select/deselect them, then hold one to bring up the edit menu and perform a batch change. - Hold the + button to add a batch of keys, by splitting text into its individual characters (or unicode scalars). - Set the number of rows and columns in each pane by tapping the pane editor's title. • The unicode character map allows you to add a character to a key directly, or copy one to the clipboard. - Enter a search, or jump to a common region or known unicode codepoint. - Hold a character to view details. • Editable text view, for checking out how characters look at different font sizes and weight, or just testing your latest keyboard design. - Switch through iOS keyboard types. - Set the keyboard's return key type. - View the keyboard in light & dark variations. - Set text font, alignment, and size. • Export individual panes, or your whole keyboard, for sharing or backup. - Creates a .ckey file (uses .plist format). - Use iOS's ‘Open In…’ feature to load the file back into the app. • Additional options to customise the look and feel of the keyboard.

Screenshots

CharMap4 screens
ℂKey4 screens

Verdict

The call

CharMap and ℂKey both sit at 4.0 stars, but that hides the real split: 86% of ℂKey's written reviews are positive against 53% of CharMap's. ℂKey also leads on update cadence (every 3 weeks vs every 5 months) and iOS requirement (9.0 vs 26.0). CharMap's advantage is ratings volume (52 vs 13). On price, rating, ads and in-app purchases 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.

ReceptionRating · Positive reviews · Number of ratings

CharMap holds the better App Store score, 4.0 against 3.8. Both are backed by a comparable volume of ratings — 52 and 13 respectively. Written reviews complicate that: 53% of CharMap's written reviews are positive against 86% of ℂKey's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

CharMap ships an update every 5 months, ℂKey every 3 weeks. The most recent releases landed on October 8, 2026 and September 30, 2026 respectively.

Scorecard4 real differences · 6 level
CharMap versus ℂKey: the parameters behind the verdict, then further details
ParameterCharMapℂKey
PriceFreeFree
Rating4.0 (52 ratings) — better3.8 (13 ratings)
Positive reviews53.0% of reviews85.7% of reviews — better
Number of ratings52 — better13
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.09.0 — better
Further details — not scored
Size22 MB14 MB
Age rating4+4+
DeveloperConor MulliganJamie Froggatt

Customer experience

CharMap

All ratings50 ratings
Positive70.0%
Neutral10.0%
Negative20.0%
Written reviews66 reviews
Positive53.0%
Neutral6.1%
Negative40.9%

ℂKey

All ratings13 ratings
Positive69.2%
Neutral0.0%
Negative30.8%
Written reviews14 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

Bugs and requests

CharMap

Reported bugs

12 issues
  • Characters omitted in other apps
  • Keyboard looks like white rectangle in some apps
  • Private Use Area characters not shown
  • Collections feature quit working
  • App crashes every time it's opened
Show 7 more
  • App crashes on iPad Pro
  • App crashes on iPad
  • Everything gone after update
  • App doesn't open after update
  • Some symbols are not shown
  • Keyboard not showing up immediately
  • Preferences -> font closes app

Requested features

20 requests
  • Add return/enter key
  • Batch add characters to collections
  • Multi-font support
  • Unicode 18.0 support
  • Add Unicode 17.0
Show 15 more
  • Ability to select characters with single click
  • Add 'raised to the power of x' symbol
  • Add superscripts in letter, equation, and inequality form
  • Option to format characters (LTR/RTL)
  • Make fonts usable in 'Unicode'
  • Implement custom font API
  • Search for character option
  • Search by character name
  • Add Sutton SignWriting block
  • Add symbol search
  • Update UI with SF symbols
  • Add dark mode support
  • Rename collections
  • Backup and Restore collections
  • Put collections on top of list when using as keyboard

ℂKey

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

CharMap

No in-app purchases

None

ℂKey

No in-app purchases

Questions

Is CharMap free?
CharMap is free to download, with no in-app purchases.
Is ℂKey free?
ℂKey is free to download, with no in-app purchases.
Which has better reviews, CharMap or ℂKey?
CharMap is rated higher. CharMap averages 4.0 out of 5 from 52 ratings, while ℂKey averages 3.8 from 13 ratings.
Do CharMap or ℂKey have ads?
Neither CharMap nor ℂKey shows ads.
Which is updated more often, CharMap or ℂKey?
CharMap ships an update every 5 months, and ℂKey every 3 weeks. Most recently, CharMap was updated on October 8, 2026 and ℂKey on September 30, 2026.

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