Comparison

Codeword Unlimited + vs Str8ts Solver

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

Head to head
About

Codeword Unlimited +

This app offers an unlimited supply of number-based word puzzles, similar to crosswords but without clues. Players decode numbers into letters to reveal hidden words, with customizable grid sizes, difficulty levels, and word lists in multiple languages.

Highlights
  • Unlimited codeword puzzles
  • Customizable grid size
  • Adjustable difficulty levels
  • Highlighting of same letters
  • Word validity checker
  • View word definitions
  • Multi-language word lists
Features
Currently charting
Read full description

Codeword Unlimited is an application to play the popular word game known as Codeword (also known as Cipher crosswords). 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). 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. 26 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 Codewords, 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. 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. Dictionaries available are English, French, German, Italian, Spanish, Portuguese, Russian, Arabic, Bulgarian, Croatian, Czech, Danish, Finnish, Greek, Hungarian, Indonesian, Polish, Norwegian, Romanian, Serbian(Latin), Serbian(Cyrillic), Slovak, Slovene, Swedish, Turkish, Ukrainian and more coming later

About

Str8ts Solver

Solve logic puzzles similar to Sudoku by filling grids with numbers 1-9. Offers daily new puzzles of varying difficulty, an integrated solver for hints, and the ability to manually input or import puzzles.

Highlights
  • Daily new puzzles
  • Multiple difficulty levels
  • Integrated solver
  • Manual puzzle entry
  • Text format import
Features
Read full description

Jeff Widderich had the idea for Str8ts in 2008. Together with Andrew Stuart, he developed a new puzzle that is a successful successor to Sudoku. It is a puzzle where you have to enter the numbers 1 to 9 in the fields, where each digit may occur only once per line and column. With the app you can daily download new puzzles and solve them for free. There are puzzles in different difficulty levels, so that everyone will find something for their level of knowledge. If you can not find a solution, the integrated solver helps to find the next steps. The integrated solver is able to solve even the most extreme str8ts puzzles with a backtracking algorithm. So far, we've only found two puzzles where the one-step backtracking algorithm did not find a solution and needed support from the user. As a further function, you can even enter puzzles, which are available for example in printed form, by hand. An import via a text format is also possible. We thank Jeff Widderich and Andrew Stuart, who gave us permission to use the name "Str8ts". A highlight, of course, is the link from Andrew, through which he daily provides us with new puzzles for the app.

Screenshots

Codeword Unlimited +4 screens
Str8ts Solver4 screens

Verdict

The call

The clearest difference is review sentiment: Codeword Unlimited + at 84% against Str8ts Solver's 50%. Codeword Unlimited + also leads on update cadence (every 2 months vs every 17 months) and chart position (#145 vs unranked). Str8ts Solver's advantage is price ($2.99 vs $4.99). On ads, in-app purchases, 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

Codeword Unlimited + costs $4.99 and Str8ts Solver $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Codeword Unlimited + ships an update every 2 months, Str8ts Solver every 17 months. Both last shipped on October 19, 2026.

Scorecard5 real differences · 6 level
Codeword Unlimited + versus Str8ts Solver: the parameters behind the verdict, then further details
ParameterCodeword Unlimited +Str8ts Solver
Price$4.99$2.99 — better
Rating4.7 (54 ratings) — better—
Positive reviews83.5% of reviews — better50.0% of reviews
Number of ratings54 — better—
Update frequencyEvery 2 months — betterEvery 17 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank#145 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size70 MB2 MB
Age rating4+4+
DeveloperHavosTh. Wolf

Customer experience

Codeword Unlimited +

All ratings54 ratings
Positive94.4%
Neutral1.9%
Negative3.7%
Written reviews85 reviews
Positive83.5%
Neutral5.9%
Negative10.6%

Str8ts Solver

Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

Codeword Unlimited +

Reported bugs

5 issues
  • Cannot open app after update
  • App not optimized for recent screens
  • Regularly rejects common words
  • Black screen on launch
  • Cannot erase a letter that is not in the right place

Requested features

10 requests
  • UK English dictionary option
  • Option to remove ads
  • Option to not have a timer or a pause button
  • New Game button on the menu bar
  • Backspace button
Show 5 more
  • Landscape mode for iPad
  • Pause button
  • Option to remove timer
  • No erase button
  • UK English words

Str8ts Solver

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Codeword Unlimited +

No in-app purchases

None

Str8ts Solver

No in-app purchases

Questions

Is Codeword Unlimited + free?
Codeword Unlimited + costs $4.99, with no in-app purchases.
Is Str8ts Solver free?
Str8ts Solver costs $2.99, with no in-app purchases.
Do Codeword Unlimited + or Str8ts Solver have ads?
Neither Codeword Unlimited + nor Str8ts Solver shows ads.
Which is updated more often, Codeword Unlimited + or Str8ts Solver?
Codeword Unlimited + ships an update every 2 months, and Str8ts Solver every 17 months. Most recently, Codeword Unlimited + was updated on October 19, 2026 and Str8ts Solver on October 19, 2026.

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