Comparison

Hashi Solver vs DD

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

Head to head
About

Hashi Solver

This app helps you solve Hashi puzzles by finding bridge combinations. Input your puzzle details into the editor and let the app generate the solution. You can also save and load your puzzles.

Highlights
  • Puzzle editor
  • Automatic solution generation
  • Save and load puzzles
  • Bridge combination finder
  • Easy-to-use interface
Features
Read full description

Need help solving a Hashi puzzle? Use this app to find the solution! Enter your puzzle in the easy-to-use puzzle editor. Watch the app try different combinations of bridges to solve your puzzle. Take pictures of your favorite puzzles. Save puzzles for later, or load puzzles you saved previously. NOTE: This app does not provide puzzles for you to solve. You bring the puzzle, the app gives you the answer. About the game of Hashi (hashiwokakero, 橋をかけろ) Hashi is a bridge building game. Islands are planted on a grid, and each island has a number from 1 to 8. Solve the puzzle by drawing bridges between the islands, obeying the following rules: 1. The total bridges on each island must match the number. 2. Bridges must run north-south or east-west. 3. Bridges can’t cross other bridges or islands. 4. No more than two bridges can connect the same pair of islands. 5. All the islands must be connected together.

About

DD

Features
Read full description

DD-Knots is a fun and challenging knot-untangling puzzle game! Test your brain and fingers as you unravel complex knots. Every level is a new puzzle – can you untangle them all? Features: • Addictive Knot Puzzles: From easy to complex knots, each level is a new challenge • Brain Training: Enhance logic and problem-solving skills • Simple Controls: Easy to pick up, hard to master • Smooth Animations: Realistic rope physics and satisfying feedback • Progressive Levels: Gradually increasing difficulty to keep you hooked Unravel, solve, and become a master with DD-Knots! Subscription: 1. Users can remove the advertisements only after paying the subscription fee. The monthly charge is $2.99. 2. After confirming the purchase, the subscription fee will be deducted from their iTunes account. 3. Users can cancel the automatic renewal 24 hours before the current subscription expires; otherwise, the subscription will be automatically renewed. 4. The Apple account used for the automatic renewal subscription will automatically deduct the fee from the iTunes account and extend the corresponding validity period 24 hours before the end of each billing cycle. 5. Users can manage the subscription service, that is, after purchasing, they can go to the user account settings to turn off the automatic subscription function. User Agreement: https://github.com/dale454071867/webhome/wiki/Privacy-Policy Privacy Policy: https://github.com/dale454071867/webhome/wiki/Privacy-Policy

Screenshots

Hashi Solver4 screens
DD3 screens

Verdict

The call

The clearest difference is update cadence: DD at daily against Hashi Solver's every 3 months. DD also leads on iOS requirement (13 vs 15.2). On price, ads, in-app purchases 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. Hashi Solver sells 2 one-off in-app purchases and DD sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Hashi Solver ships an update every 3 months, DD daily. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
Hashi Solver versus DD: the parameters behind the verdict, then further details
ParameterHashi SolverDD
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 monthsDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.213 — better
Further details — not scored
Size2 MB9 MB
Age rating4+4+
DeveloperStephen Lardieri四川省与初电竞俱乐部有限公司

In-app purchases

2 purchases

Hashi Solver

One-time2
  • Larger Puzzles$2.99
  • High Resolution Images$4.99
1 purchases

DD

Subscriptions1
  • VIP$2.991 Month

Questions

Is Hashi Solver free?
Hashi Solver is free to download, with in-app purchases available.
Is DD free?
DD is free to download, with in-app purchases available.
Do Hashi Solver or DD have ads?
Neither Hashi Solver nor DD shows ads.
Which is updated more often, Hashi Solver or DD?
Hashi Solver ships an update every 3 months, and DD daily. Most recently, Hashi Solver was updated on October 27, 2026 and DD on October 25, 2026.

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