Comparison

Focused vs London System Chess

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

Head to head
About

Focused

Features
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Focused is a study planner built for students who need more than a simple to-do list. Plan each exam, organize subjects, start focused study sessions, and review mistakes before they become weak spots. Focused helps you turn a big test goal into daily actions you can actually follow. Key features: • Study planner for exams, subjects, and daily tasks • Focus timer for deep study sessions • Exam tracker with D-Day countdowns • Wrong-answer review to capture and revisit mistakes • Study history and stats to see where your time goes • Clean widgets and Live Activities for quick progress checks Free and Pro: Focused is free to start. The free version includes core study planning, focus sessions, D-Day tracking, basic stats, limited subjects, and a limited wrong-answer review queue. Focused Pro unlocks advanced planning and long-term study management, including unlimited subjects, unlimited wrong-answer reviews, advanced D-Day replanning, extended stats, premium themes, and full widget access. Focused Pro is available through optional in-app purchases. Prices and available plans are shown in the app before purchase. Focused is useful for school exams, college entrance prep, certification study, homework planning, revision routines, and self-study schedules. Instead of only tracking time, Focused connects your plan, focus sessions, mistakes, and progress in one study workflow. Terms of Service: https://prizmchain.github.io/focused-terms-of-service.html Privacy Policy: https://prizmchain.github.io/focused-privacy-policy.html

About

London System Chess

Master a single chess opening with interactive lessons and daily reviews. Practice against AI, solve puzzles, and analyze your own games to improve your play. Designed for all levels, it offers a focused learning experience without ads or tracking.

Highlights
  • Interactive lessons on the London System
  • Daily spaced-repetition reviews
  • Sparring against six engine levels
  • Daily chess puzzles and timed challenges
  • Analysis of your own game PGNs
  • Progress tracking on device
Features
Read full description

Out of book by move 5? Tired of learning an opening, then forgetting it by your next game? London System Chess teaches you one solid setup for White that you can play against almost anything: 1…d5, 1…Nf6, the Dutch, the King's Indian and more. Less theory to learn, and more games that start the way you want. HOW IT WORKS 1. Learn: short, interactive lessons where you play every move yourself. Bertie, your bowler-hatted coach, explains why each move works and grades it with the symbols players know: !!, !, !? and ?. 2. Remember: the Commute is a 5-minute daily review that brings each position back right before you'd forget it. It runs on FSRS, a modern spaced-repetition algorithm, so your time goes to the moves you're about to lose. 3. Play: spar against six engine levels, solve daily puzzles, race the clock in Rush Hour and check your real games. THE WHOLE LONDON, FROM FIRST MOVE TO GRANDMASTER IDEAS • 95 lessons in 12 lines: Foundations, Classical, Symmetry and Counterstrike against 1…d5, Trap Street, Fianchetto, the Offbeat Express for the Dutch and other surprises, Endgame Junction, Jobava, Attack, Model Games and the Grandmaster Line. • Every line checked with Stockfish. • Your repertoire as one move tree. Tap any branch to replay it and see what you remember. SEE WHERE YOUR OWN GAMES GO WRONG Game Checkup reads your Chess.com games, or a PGN from anywhere, and shows the exact move where you left the book, next to the London move. Add a slip to your next Commute with one tap, so the same mistake doesn't happen twice. PRACTICE THAT FEELS LIKE PLAY • Rush Hour: 60 seconds. How many London moves can you find? • Mind the Gap: daily puzzles where Black slips up and you punish it. • Sparring Partner: full games against six levels, from Tourist to Grandmaster, with an evaluation bar beside the board. Your opponent plays real London theory. • Climb the ranks from Pawn to Grandmaster, set a daily goal and keep your streak alive. BUILT FOR YOUR LEVEL AND YOUR DAY Brand new or rated 1700, you start with the lessons that fit your level. A lesson takes 3 to 15 minutes, and the daily review about five. No account, no ads, no tracking: your progress stays on your device. START FREE 20 lessons are free: most of the Foundations Line and the first lesson of every other line. So are the daily Commute, the daily puzzle, three Rush Hour runs a day, three sparring levels and Game Checkup. The Season Ticket unlocks all 95 lessons, every puzzle, unlimited Rush Hour, all six engine levels and the premium boards. Choose yearly with a 7-day free trial, monthly, or pay once for lifetime access. Your first London moves take three minutes. All aboard. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Focused4 screens
London System Chess4 screens

Verdict

The call

Focused and London System Chess are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Focused sells 3 in-app purchases, starting at $3.99 per month and London System Chess sells 3 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Focused versus London System Chess: the parameters behind the verdict, then further details
ParameterFocusedLondon System Chess
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequency—Every 5 days
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhoneiPhone, iPad — better
Requires iOS17.0 — better18.0
Further details — not scored
Size27 MB16 MB
Age rating4+4+
DeveloperNOH HIYEONGBohdan Ivanchenko

In-app purchases

3 purchases

Focused

Subscriptions2
  • Focused Pro Monthly$3.991 Month
  • Focused Pro Yearly$19.991 Year
One-time1
  • Focused Pro Lifetime$29.99
3 purchases

London System Chess

Subscriptions2
  • Season Ticket (Monthly)$7.991 Month
  • Season Ticket (Yearly)7 Days trial$39.991 Year
One-time1
  • Season Ticket (Lifetime)$89.99

Questions

Is Focused free?
Focused is free to download, with in-app purchases available.
Is London System Chess free?
London System Chess is free to download, with in-app purchases available.
Do Focused or London System Chess have ads?
Neither Focused nor London System Chess shows ads.

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