Comparison

Kakuro u vs Link!

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

Head to head
About

Kakuro u

Engage in a classic math logic puzzle game that offers a challenging and addictive experience. Explore a vast number of puzzles with unique features designed for daily brain training or relaxation. Progress through difficulty levels and master complex number combinations.

Highlights
  • Unlimited Kakuro puzzles
  • Puzzle generator
  • Bookmark and 'Ball of String' function
  • Combo calculator
  • Color-coded entries
  • Multiple hint types
  • Six difficulty levels and board sizes
Features
Read full description

The most powerful and feature rich mobile Kakuro game available. (Smartphone Magazine - Best Number Puzzle Game Winner 2007, 2008) Ready for a new challenge? Kakuro, also known as cross sums, is similar to Sudoku but with an additional twist. It is the latest craze to come from the land of the rising sun. Infact it's a bigger hit in Japan than SuDoku ! Similar rules and just as addictive... V3 Features a Brand New Puzzle Generator - All puzzles guaranteed to be solvable by logic alone. Kakuro is our mathematics and logic puzzle game that includes many unique features. Ideal for daily brain training or relaxation. "As the Kakuro puzzles get more advanced, the Mastersoft tools supplied are extremely clever and really help. If you like logic puzzles, I recommend Mastersoft’s ingenious implementation of this game." - Smartphone Magazine Features: Unlimited kakuros. * Many Unique Mastersoft Features including the ability to set bookmarks (or flags) during the game, which allows you to explore possible solutions and quickly get back to a known starting point if it doesn't work out using the 'Ball of String' function. Includes a uniques 'combo calcuator' which quickly shows you potential number combinations for each sequence in the puzzle. Ball of String, Flag Trail, combo calc and more ... Work your way up from Beginner to Kakuro Master ! Cool scoring system. Easily the most powerful Kakuro / Cross Sums game for iPhone. Enter your working out. Choose from a full pallette to color code your entries which with multiple undos makes it easy to try different solution strategies.. Various types of hint such including: 1. Naked Singles 2. Unique Combos 3. Suggest a Cell 4. Suggest a value and many more ... Six levels of difficulty from 'Simple' to "Kakuro Master" . Six board sizes. Unique gameplay with increasing difficulty. Designed with the help of over 100 Kakuro Players. Plays the way you want it to ! Built in timer. Rating. Advanced statistics. and Lots, lots more! >- EULA Agreement: http://www.mastersoftmobilesolutions.com/eula.htm Privacy policy: http://www.mastersoftmobilesolutions.com/privacy.htm About our auto-renewal subscriptions: All subscriptions are related to our Kakuro Pro service. See "What's Included" for more details. Service prices depend on the length of service purchased as shown on the purchase buttons. You can currently subscribe for 1 month. Payment will be charged to your iTunes account upon confirmation of purchase. Your subscription will be automatically renewed unless automatic renewal is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period and the cost of renewal will be shown. You can manage your subscriptions, and auto-renewal can be turned off if you go to your account settings after purchase.

About

Link!

This addictive puzzle game challenges you to connect identical numbers with lines, filling all cells without crossing lines. It offers over 1,800 puzzles across six difficulty levels for easy brain training on the go.

Highlights
  • Connect identical numbers
  • Fill all cells
  • Over 1,800 puzzles
  • 6 difficulty levels
  • Undo and delete functions
  • Smooth touch drawing
Features
Read full description

Connect matching numbers with paths and fill the whole grid. How to play • Connect each pair of matching numbers. • Paths cannot cross or branch. • Fill every cell to complete the puzzle. • Tap a number to clear its path. Choose from six difficulty levels and 1800 puzzles. Undo a move or clear the board whenever you want to try another route. Your completed puzzles are saved on your device. This software includes work distributed under the Apache License 2.0. https://www.apache.org/licenses/LICENSE-2.0

Screenshots

Kakuro u4 screens
Link!3 screens

Verdict

The call

The clearest difference is in-app purchases: Link! at none against Kakuro u's 2. Link! also leads on review sentiment (67% vs 44%). Kakuro u's advantage is update cadence (every 3 weeks vs every 5 months) and ratings volume (302 vs 24). On price, rating, ads and device support 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. Kakuro u sells 2 in-app purchases, starting at $1.99 per month. Link! asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Kakuro u against 4.6 for Link!. That said, the two scores are not equally well evidenced: Kakuro u has 302 ratings behind it against 24, so its average is the more settled of the two. Written reviews are what separate them: 44% of Kakuro u's written reviews are positive against 67% of Link!'s.

UpkeepUpdate frequency

Kakuro u ships an update every 3 weeks, Link! every 5 months. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

Scorecard5 real differences · 5 level
Kakuro u versus Link!: the parameters behind the verdict, then further details
ParameterKakuro uLink!
PriceFreeFree
Rating4.5 (302 ratings)4.6 (24 ratings) — better
Positive reviews43.9% of reviews66.7% of reviews — better
Number of ratings302 — better24
Update frequencyEvery 3 weeks — betterEvery 5 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.1 — better15.0
Further details — not scored
Size168 MB12 MB
Age rating17+4+
DeveloperMastersoftShogo Yoshida

Customer experience

Kakuro u

All ratings299 ratings
Positive90.3%
Neutral3.7%
Negative6.0%
Written reviews132 reviews
Positive43.9%
Neutral7.6%
Negative48.5%

Link!

All ratings24 ratings
Positive87.5%
Neutral8.3%
Negative4.2%
Written reviews24 reviews
Positive66.7%
Neutral8.3%
Negative25.0%

Bugs and requests

Kakuro u

Reported bugs

5 issues
  • Glitchy, crashes often
  • Doesn't work on iOS 8
  • Doesn't work anymore after updates
  • Buttons don't respond
  • Loses progress when app is interrupted

Requested features

3 requests
  • Easier way to mark the board and rewind to an earlier mark
  • Dark mode option
  • More hints for beginners

Link!

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Kakuro u

Subscriptions1
  • Monthly Pro Subscription$1.991 Month
One-time1
  • Purchase Kakuro Outright$2.99
None

Link!

No in-app purchases

Questions

Is Kakuro u free?
Kakuro u is free to download, with in-app purchases available.
Is Link! free?
Link! is free to download, with no in-app purchases.
Which has better reviews, Kakuro u or Link!?
Link! is rated higher. Kakuro u averages 4.5 out of 5 from 302 ratings, while Link! averages 4.6 from 24 ratings.
Do Kakuro u or Link! have ads?
Both Kakuro u and Link! show ads.
Which is updated more often, Kakuro u or Link!?
Kakuro u ships an update every 3 weeks, and Link! every 5 months. Most recently, Kakuro u was updated on October 26, 2026 and Link! on October 29, 2026.

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