Comparison

Chess HD ∙ vs One Line

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

Head to head
About

Chess HD ∙

Experience a visually stunning chess game with excellent graphics and sound effects. Play against a challenging AI or a friend, with features like configurable difficulty, score tracking, and an undo function. Enjoy a free, ad-supported chess experience.

Highlights
  • High-definition graphics and sound effects
  • 1-player vs. computer and 2-player modes
  • Configurable AI difficulty
  • Score tracking and player names
  • Undo function
  • Automatic save
Features
Read full description

Are you tired of playing chess games that look like they were designed for a Commodore 64 instead of an iPad? We've got the antidote for you. Chess Free HD is the best looking chess game for the iPad, and best of all - it's free! Chess Free HD supports both 1 player and 2 player gameplay, so you can play against friends or test your skills against a challenging computer opponent. Chess Free HD offers a host of exciting features, including: * Great graphics and exciting sound effects * Configurable player names and score tracking * Outstanding AI engine with configurable difficulty level * Board rotation for two player games * Undo function * Automatic save when you exit the application Chess Free HD is supported by unobtrusive banner advertising.

About

One Line

Features
Read full description

Challenge your brain and sharpen your spatial reasoning with One Stroke: One Line Puzzle! A minimalist, deeply satisfying brain teaser where your mission is simple yet deceptively challenging: connect all the dots and complete the entire geometric figure using a single continuous stroke without lifting your finger and without retracing the same path twice. Based on classic Eulerian path graph theory, One Stroke offers a pure, distraction-free environment designed to boost logical thinking, improve focus, and provide relaxing mental exercise. KEY FEATURES: - 999+ Handcrafted Graph Puzzles: Journey through hundreds of geometric figures, from simple beginner shapes to intricate multi-node labyrinths. - The Unbroken Line Mechanic: Connect all nodes and traverse every edge in one continuous, seamless drawing movement. - Intuitive Touch & Smooth Controls: Silky 60fps path tracking with crisp lines, precise dot collision, and instant haptic feedback. - Intelligent Step-by-Step Hints: Stuck on a tricky node? Activate smart hints to reveal the next logical move without spoiling the solution. - Difficulty Progression: Smooth learning curve introducing one-way paths, warp portals, and multi-layer connection rules as you advance. - Relaxing Zen Atmosphere: Minimalist vector aesthetics with soothing color palettes designed for stress-free problem solving. - 100% Offline Gameplay: Play anywhere during daily commutes, flights, or quiet evenings with zero internet or data required. YOUR PRIVACY MATTERS: Enjoy pure puzzle solving with complete peace of mind. No personal tracking, no online accounts, and 100% offline security. Download One Stroke: One Line Puzzle today and experience the ultimate test of spatial logic!

Screenshots

One Line4 screens

Verdict

The call

The clearest difference is ads: One Line at none against Chess HD ∙'s shown. One Line also leads on device support (3 vs 1). Chess HD ∙'s advantage is iOS requirement (12.0 vs 15.1). On price, update cadence 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.

UpkeepUpdate frequency

Chess HD ∙ ships an update every 5 months, One Line every 6 months. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Chess HD ∙ versus One Line: the parameters behind the verdict, then further details
ParameterChess HD ∙One Line
PriceFreeFree
Rating4.4 (8.2K ratings) — better—
Positive reviews54.9% of reviews—
Number of ratings8.2K — better—
Update frequencyEvery 5 months — betterEvery 6 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPadiPhone, iPad, iPod — better
Requires iOS12.0 — better15.1
Further details — not scored
Size88 MB54 MB
Age rating4+4+
DeveloperOptime Software LLCNagy Solaiman

Bugs and requests

Chess HD ∙

Reported bugs

5 issues
  • Pieces disappearing during gameplay
  • Incorrect checkmate/stalemate detection
  • Computer making illegal moves
  • Game freezing or crashing
  • Inability to undo after checkmate/stalemate

Requested features

5 requests
  • Landscape mode support
  • Ability to track wins/losses/draws
  • More customization options (piece designs, board colors, etc.)
  • Tutorials or lessons for beginners
  • Multiplayer mode with friends

One Line

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Chess HD ∙

No in-app purchases

None

One Line

No in-app purchases

Questions

Is Chess HD ∙ free?
Chess HD ∙ is free to download, with no in-app purchases.
Is One Line free?
One Line is free to download, with no in-app purchases.
Do Chess HD ∙ or One Line have ads?
Chess HD ∙ shows ads; One Line does not.
Which is updated more often, Chess HD ∙ or One Line?
Chess HD ∙ ships an update every 5 months, and One Line every 6 months. Most recently, Chess HD ∙ was updated on November 1, 2026 and One Line on October 25, 2026.

Other comparisons