Comparison

ε Chess vs Lifeline Chess

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

Head to head
About

ε Chess

Experience chess with a unique twist where pieces can move fractional distances. Capture opponents by overlapping their pieces, with the game concluding upon capturing the opposing king. This innovative take on the classic strategy game offers a fresh challenge.

Highlights
  • Fractional piece movement
  • Overlap capture mechanic
  • Capture the opposing king to win
  • Innovative chess strategy
  • Unique gameplay
Features
Read full description

Infinitesimal Chess (ε Chess for short) is like regular chess, but each piece can move a fractional amount. Pieces move along the same paths as in normal chess, but can stop anywhere along that line. If your piece, which has a size, overlaps one or more opponent's piece, you take them. The game ends when you take the opposing king.

About

Lifeline Chess

This app offers a fresh take on chess with unique power-ups called Lifelines. It features real-time multiplayer, custom game creation, bot building, and a tournament system. Sharpen your skills with AI analysis and community-shared puzzles.

Highlights
  • 8 Unique Lifelines
  • Real-Time Multiplayer
  • Create Bots
  • Custom Games & Challenges
  • Tournament System
  • Stockfish 17.1 Analysis
  • Community Puzzles
Features
Read full description

Lifeline Chess brings Chess gameplay to a new level with innovative strategic power-ups called Lifelines while providing a multitude of gameplay creation and community sharing tools. KEY FEATURES: • 8 Unique Lifelines: One time use • Real-Time Multiplayer: Compete against friends • Create Bots: Play against our themed bots or create your own with unique mechanics • Custom Games: Create challenges with your bots to share or play community made games • Tournament System: Compete in Knockout or Swiss-format tournaments • Stockfish 17.1 Analysis: Review your games with full breakdowns • Community Puzzles: Sharpen your skills or make your own to share! • Rematch Clause: Enjoy more series matches • Light, Dark and 80's Modes LIFELINE POWER-UPS: • Pawn Uprising: Move two separate pawns • Best Move: Get computer recommendation • Shield: Protect a piece from capture for 1 turn • Freeze: Opponent piece cannot move for 1 turn • Teleport: Randomly teleport your king to safety • Second Chance: Undo your last move • Revive: Bring back a captured piece as a pawn • Add Time: Plus 30 seconds to your clock GAME MODES: • Matching: Jump into games vs human players • Custom Challenges: Play or design games • Community Made Puzzles: make and share • Sit N Go Tournaments: Swiss-style or Knockout Whether you're looking to improve your chess skills or just have fun with friends, Lifeline Chess offers a fresh take on the classic game while implementing a community style sharing and creation system for all chess aspects. Download now and join the Lifeline Chess Family!

Screenshots

ε Chess3 screens
Lifeline Chess4 screens

Verdict

The call

The clearest difference is in-app purchases: ε Chess at none against Lifeline Chess's 1. ε Chess also leads on update cadence (every 2 days vs every 4 days). Lifeline Chess's advantage is ads (none vs shown). On price, rating, ratings volume 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. Lifeline Chess sells 1 one-off in-app purchase. ε Chess asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for ε Chess against 5.0 for Lifeline Chess. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

UpkeepUpdate frequency

ε Chess ships an update every 2 days, Lifeline Chess every 4 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
ε Chess versus Lifeline Chess: the parameters behind the verdict, then further details
Parameterε ChessLifeline Chess
PriceFreeFree
Rating5.0 (3 ratings)5.0 (4 ratings)
Positive reviews100.0% of reviews—
Number of ratings34 — better
Update frequencyEvery 2 days — betterEvery 4 days
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.4 — better14.0
Further details — not scored
Size29 MB8 MB
Age rating4+12+
DeveloperMax MetralMichael Tillman

Customer experience

ε Chess

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Lifeline Chess

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ε Chess

No in-app purchases

1 purchases

Lifeline Chess

One-time1
  • Lifeline Chess Full Game$3.99

Questions

Is ε Chess free?
ε Chess is free to download, with no in-app purchases.
Is Lifeline Chess free?
Lifeline Chess is free to download, with in-app purchases available.
Which has better reviews, ε Chess or Lifeline Chess?
ε Chess and Lifeline Chess are both rated 5.0 out of 5 on the App Store, from 3 and 4 ratings respectively.
Do ε Chess or Lifeline Chess have ads?
ε Chess shows ads; Lifeline Chess does not.
Which is updated more often, ε Chess or Lifeline Chess?
ε Chess ships an update every 2 days, and Lifeline Chess every 4 days. Most recently, ε Chess was updated on November 3, 2026 and Lifeline Chess on October 30, 2026.

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