# Codeword Unlimited — Numbers to letters

> Unlimited customizable number-to-letter word puzzle game. (iPhone/iPad app by Havos.)

- Source: https://appshunter.io/ios/app/codeword-unlimited/id643961117 (this page in markdown: same URL + `.md`)
- Developer: [Havos](https://appshunter.io/developer/309789068)
- Category: Games, Entertainment, Puzzle, Word
- Price: Free with in-app purchases
- Rating: 4.70/5 from 1,765 App Store ratings · 259 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 91 MB
- Languages: American English, Afrikaans, Albanian, Arabic, Azerbaijani, Bulgarian, Catalan, Croatian, Czech, Danish and 26 more
- Released: 2013-09-19
- Data updated: 2026-09-02
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/codeword-unlimited/id643961117/reviews.md

## What is Codeword Unlimited?

Codeword Unlimited is an application to play the popular word game known as Codeword (also known as Cipher crosswords or Cyptograms). This game uses UK English spellings or US English spellings (user choice).
The words to find are in English, or you can play in 35 other languages.

For those unfamiliar with Codeword puzzles, they provide a grid of words, similar to a normal crossword, but with no clues, rather a few initially provided letters, and a number in each square in the gird to indicate its (as yet unknown) letter. All boxes with the same number must use the same letter. From that information and the few initially provided letters it is possible to work out which words will fit in the boxes. Hence you are decoding (or decyphering) the numbers into letters to reveal the hidden words. Usually all 26 letters of the alphabet are used in the codeword, although not always (and unused letters appear crossed out in the keyboard). It is fun, challenging, and a real brain teaser.

Feature list:
1) Unlimited number of codewords!!  They are created on-the-fly using the application's advanced generator engine and it's built-in word list
2) The player decides the number of rows and columns (from 3 to 20). This allows the game to be suitable for all kinds of mobile-phones and tablets
3) Difficultly level can be specified by the user, which determines the pool of words the generator will use. The larger the pool the greater the difficulty. There is even an early learner mode with a limited number of words, aimed at children and English language learners. The number of starting letters can also be specified. Higher scores can be obtained with more difficult codewords 
4) Selecting a square in the grid will highlight all places the same letter is used in that grid (i.e. has the same number to decipher). This is really handy and of course not possible when doing codewords in a magazine
5) If a game is too difficult, the application provides two useful tools to help you (see below)
6) For any word in the grid for which all squares are assigned to letters, Codeword Unlimited will highlight if that word is NOT an allowed word in the word list it uses to generate its codewords. This helps you when you have mistakes in your current assignments (saving you lots of time and frustration!)
7) An on-screen keyboard means it is much easier and more comfortable to play
8) The definition of a completed word can be viewed. This is useful if you do not know it, or you are learning a foreign language (internet connection required)
9) Choose the language of the word list, from a large range of downloadable dictionaries. 36 languages are currently available (see below)
10) Can be played in portrait or landscape mode. Just rotate your device and the display adjusts automatically

Other similar applications want you to pay for more puzzles, but this game provides you with endless puzzles, all for free!!.

Each game is assigned a difficulty level from 0 (easy) to 9 (very hard). The difficulty level is determined by the settings or the difficulty selector. Each difficulty level maintains the high scores (measured by fastest time to complete the game). The game displays the best 20 scores for each difficulty level.

If the player is in difficulty, the application provides two very useful aids
1) The game can provide another decoded letter
2) The game can show you potential answers for an uncompleted word. The game uses the letters that you have already decoded and displays the matching words

You can play this app in the following languages: English, French, German, Spanish, Portuguese, Italian, Dutch, Swedish, Danish, Norwegian, Finnish, Polish, Hungarian, Czech, Russian, Arabic, Bulgarian, Croatian, Greek, Indonesian, Romanian, Serbian, Serbo-Croatian, Slovak, Slovene, Turkish, Ukrainian, Afrikaans, Albanian, Azeri, Estonian, Latvian, Lithuanian, Catalan, Galician, Tagalog

## Key features

- Unlimited puzzle generation
- Customizable grid size
- Adjustable difficulty levels
- Multi-language support
- Letter highlighting
- Word validity checker
- View word definitions

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Supporter (no ads) | $4.99 | per year |


## What do users think of Codeword Unlimited?

Overall sentiment: positive

**Pros**

- 🧠 Mentally stimulating
- 👍 Customizable difficulty levels
- 🕹️ Addictive gameplay
- 💪 Keeps the brain active
- 🎮 Enjoyable game

**Cons**

- 📢 Intrusive ads
- ⏱️ Inaccurate timers
- 🔍 Questionable word choices
- 🇺🇸 American-centric vocabulary
- 🤖 Automated hints/penalties

**Commonly reported bugs**

- App crashes on certain devices
- Incompatibility issues with updates
- Incorrect word definitions

**Most requested features**

- Option to disable ads
- More challenging word lists
- Ability to manually fill in letters
- Improved timer accuracy
- Localization for different languages

## Recent user reviews (10 of 259)

All indexed reviews: https://appshunter.io/ios/app/codeword-unlimited/id643961117/reviews.md

### 5/5 — Hard to put down once you start.

*2026-08-18, version 6.2.3*

This word puzzle is hard to put down once you start , with different levels it is suitable for the vast majority of of players.

### 5/5 — Great game

*2026-07-19, version 6.2.3*

Love this game I play it most mornings keeps the old grey cells working…..

### 4/5 — Great!!

*2026-07-07, version 6.2.3*

Apart from the American spelling this is a brain teaser where you really do need to think!!!!!

### 5/5 — Better than the book

*2026-07-03, version 6.2.3*

I used to get the book for Code Crackers this is much better!

### 3/5 — Mots codés

*2026-06-16*

Très intéressant, mais difficile de comprendre le début du jeu

### 1/5 — Good. But.

*2026-03-07, version 6.2.3*

Gave up on the game. I did really like it! But I’m not blindly agreeing to all the ‘consents’. And it would take too long to turn them all off — and there are a lot! So? — 1 star and deletion. Bye bye.

### 2/5 — Very poor.

*2026-02-21, version 6.2.3*

This game regularly excludes letters like Q and J etc which is simply lazy.  Also the words included are very limited so after a few levels it becomes far too easy to guess them.

### 2/5 — Ad heavy

*2025-08-18, version 6.2.3*

Bit too many ads

### 3/5 — Codeword revisited

*2025-07-17, version 6.2.3*

I like this puzzle; It helps centre concentration and stimulate creativity; It is interesting that to try a tangible codeword puzzle in a paper feels harder and more challenging. I’d like to have some more challenges ~~ Keep them coming 🥰

PM 4teo hrs❣️❣️❣️💊❣️❣️❣️

### 5/5 — A great game

*2025-06-17, version 6.2.3*

I’ve been playing this for years and still play it every day.  Love it!  
Tip: if I get myself into a happy state of mind before hitting "New game", the puzzle is easier.  No kidding!

## Frequently asked questions about Codeword Unlimited

### What is Codeword Unlimited?

Codeword Unlimited is a mobile application designed for playing Codeword puzzles, also known as Cryptograms or Cipher crosswords. It provides an unlimited number of puzzles that are generated on-the-fly, allowing players to decode numbers into letters to reveal hidden words.

### What are the key features of Codeword Unlimited?

Key features include an unlimited supply of generated puzzles, customizable grid sizes (3x3 to 20x20), adjustable difficulty levels, and support for 36 languages. It also offers helpful tools like letter highlighting, a word validity checker, and the ability to view word definitions.

### How much does Codeword Unlimited cost?

The application is free to download and play, offering endless puzzles without additional cost. However, it does contain in-app purchases and advertisements.

### What languages are supported?

The app supports playing in English (UK or US spellings) and offers word lists in 35 other downloadable languages, making it useful for language learners.

### Who is this app for?

This app is ideal for anyone who enjoys word games, logic puzzles, and brain teasers. It's also beneficial for those looking to improve their vocabulary or learn a new language through engaging puzzles.

## Version history (last 5 releases)

### 6.2.3 — 2024-01-16

1) Bugfixes

### 6.2.2 — 2023-08-22

6.2.2
1) Fix of problem when device is turned to landscape.

6.2.1
1) Fix of display issue seen on some phones

6.2
1) More words in our dictionaries for these languages: Norwegian(+48K), Russian(+42K), Romanian(+48K), Slovak(+35K), Finnish(+23K), Serbian(+50K) and Croatian(+48K)
2) Native support for iPhone 12, 13 and 14 family of phones
3) Improved word difficulty to reduce occurrences of hard words in easy puzzles
4) Load Game: Now simplified to show only started and unfinished games
5) Game switcher: Now only switches between started and unfinished games, making it more useful
6) New full-screen backgrounds
7) Now informational popups are dismissed by tapping anywhere on the screen
8) Bugfixes and data corrections

### 6.2.1 — 2023-08-20

6.2.1
1) Fix of display issue seen on some phones

6.2
1) More words in our dictionaries for these languages: Norwegian(+48K), Russian(+42K), Romanian(+48K), Slovak(+35K), Finnish(+23K), Serbian(+50K) and Croatian(+48K)
2) Native support for iPhone 12, 13 and 14 family of phones
3) Improved word difficulty to reduce occurrences of hard words in easy puzzles
4) Load Game: Now simplified to show only started and unfinished games
5) Game switcher: Now only switches between started and unfinished games, making it more useful
6) New full-screen backgrounds
7) Now informational popups are dismissed by tapping anywhere on the screen
8) Bugfixes and data corrections

### 6.2 — 2023-08-17

1) More words in our dictionaries for these languages: Norwegian(+48K), Russian(+42K), Romanian(+48K), Slovak(+35K), Finnish(+23K), Serbian(+50K) and Croatian(+48K)
2) Native support for iPhone 12, 13 and 14 family of phones
3) Improved word difficulty to reduce occurrences of hard words in easy puzzles
4) Load Game: Now simplified to show only started and unfinished games
5) Game switcher: Now only switches between started and unfinished games, making it more useful
6) New full-screen backgrounds
7) Now informational popups are dismissed by tapping anywhere on the screen
8) Bugfixes and data corrections

### 6.1 — 2021-05-16

1) New languages: Afrikaans, Albanian, Azeri, Estonian, Latvian, Lithuanian, Catalan, Galician, Tagalog
2) The tutorial is now translated into all supported languages
3) Bugfixes

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## More apps by Havos

- [Codeword Unlimited +](https://appshunter.io/ios/app/codeword-unlimited-plus/id633759494)
- [Word Search Ultimate +](https://appshunter.io/ios/app/word-search-ultimate-plus/id643890834)
- [Word Search Ultimate](https://appshunter.io/ios/app/word-search-ultimate/id643964085)
- [Crossword Solver +](https://appshunter.io/ios/app/crossword-solver-plus/id650469164)
- [Crossword Solver](https://appshunter.io/ios/app/crossword-solver/id668459828)

All apps by Havos: https://appshunter.io/developer/309789068

## Related topics

[code breaker puzzle](https://appshunter.io/ios/topics/code-breaker-puzzle) · [cryptogram games](https://appshunter.io/ios/topics/cryptogram-games)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-02.*