Comparison

Chess Visualization vs JLPT N1 N2 Prep

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

Head to head
About

Chess Visualization

Enhance your chess calculation and visualization skills with over 1.1 million offline puzzles. Train to see moves ahead, master tactics, and improve your endgame play. Learn from mistakes and track progress with a unique reward system.

Highlights
  • Visualize up to 25 moves ahead
  • Over 1.1 million offline puzzles
  • Rating ladder for skill progression
  • Tactical themes and mating patterns
  • Endgame practice against engine
  • Mistake review and training
  • Progress tracking with badges
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Chess Visualization is a complete training gym for the skill that decides many games: seeing the position before it appears on the board. THE BLUNDER CURE Many games are not lost to brilliance. They are lost to a piece left hanging. How can you blunder a piece next move when you have trained yourself to see many moves past it? Blunders are failures of sight, not knowledge — build the habit of looking further than your opponent and they quietly disappear from your games. SEE FURTHER THAN YOUR OPPONENT Visualize from 2 moves ahead up to 25, with audio read-back of every move so you can train your calculation with your eyes off the board. OVER 1.3 MILLION PUZZLES, ALWAYS OFFLINE The entire puzzle library lives on your device. Train at 35,000 feet, on the beach, or anywhere without a signal. FIND YOUR LEVEL AND CLIMB Rating ladder groups serve up random puzzles sorted into 200-point Elo bins, from under 600 all the way past 3000. Find your level, train slightly above it, master it, and move up. Difficulty also scales across five presets: Beginner, Intermediate, Advanced, Expert and Titled Player. TACTICS, OPENINGS AND MATING PATTERNS Advanced tactical themes including collinear moves, deflection, interference and many more. Plus 19 distinct checkmating patterns, mate-in-1 through mate-in-5 challenges, and puzzles from 31 popular openings. ENDGAME MASTERY Many pre-defined endgame categories such as "King + 3 pawns vs. King + 2 pawns" or "Rook + 2 pawns vs. Rook + 3 pawns". Optionally play them out against the built-in engine until the technique is automatic. ENGINE ANALYSIS A built-in chess engine lets you analyze any position after you solve it, so you understand not just the answer but the reason behind it. LEARN FROM YOUR MISTAKES Every puzzle you miss is automatically collected in a dedicated group for review and repeated training, so weaknesses become strengths. STAY MOTIVATED A unique badge reward system tracks your progress and keeps you coming back to train. MAKE IT YOURS Customize your home view and pin only the puzzle sets you care about for instant access to your favorites. ON IPHONE AND IPAD Designed for both screens, with a large board and side panels on iPad. Your training statistics sync through iCloud, and one Premium subscription covers both devices. Download Chess Visualization and start calculating like a stronger player. Chess Visualization is free to use, with 10 puzzles to solve every day, indefinitely. An optional Premium subscription removes the daily limit. Privacy Policy: https://rfbroadband.github.io/Chess-Visualization-Legal/PrivacyPolicy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

JLPT N1 N2 Prep

Features
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Close the word list. Open the exam-sized questions. Through December 6, today's subject is the first thing you see. 「日本語能力試験対策」(short name: JLPTドリル) drills JLPT N2 and N1 in the same item types used on test day: kanji readings, usage, word order, original reading passages, and listening you hear before you choose. About 1,200 original items, each with an explanation. Try it free: switch levels, see the next test date, build a plan, open jlpt.jp samples in Safari, plus 15 vocab / 10 grammar / 1 reading passage / 3 listening / 1 mock / 6 cards at that level. Listening waits until you play the clip. Section mocks use the official time guide (scores are a guide, not an official score). Missed items stay in a list; three correct answers in a row mark an item mastered. Lecture cards cover about 4,700 words. Only cards that have an example can be heard in a female or male voice (synthesized, not the exam recording). A one-time 680-yen unlock per level opens every item, unlimited mocks, cards and missed questions. Unlocking N2 does not unlock N1. UI: Japanese / 简体中文 / 繁體中文 / English / 한국어 / Tiếng Việt. Stems, choices and transcripts stay Japanese. No account, no ads, no subscription, no cloud AI. Downloadable outside Japan. Unofficial study material. Not from the Japan Foundation or JEES. Eligibility in Japan follows JEES. You cannot sit N1 and N2 on the same day. Sources: form notes on jlpt.jp, the Jōyō kanji list, public JEES pages. Past exam papers are not included. Contact: wengzheng@msn.com

Screenshots

Chess Visualization4 screens
JLPT N1 N2 Prep4 screens

Verdict

The call

The clearest difference is update cadence: JLPT N1 N2 Prep at daily against Chess Visualization's every 5 days. 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. Chess Visualization sells 5 in-app purchases, starting at $4.99 per month and JLPT N1 N2 Prep sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Chess Visualization ships an update every 5 days, JLPT N1 N2 Prep daily. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 8 level
Chess Visualization versus JLPT N1 N2 Prep: the parameters behind the verdict, then further details
ParameterChess VisualizationJLPT N1 N2 Prep
PriceFreeFree
Rating5.0 (4 ratings) — better—
Number of ratings4 — better—
Update frequencyEvery 5 daysDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size714 MB21 MB
Age rating4+4+
DeveloperOliver Wertherzheng weng

In-app purchases

5 purchases

Chess Visualization

Subscriptions2
  • Premium Monthly$4.991 Month
  • Premium Annual$49.991 Year
One-time3
  • Ambassador AccessFree
  • Titled Player 12 Months Pass$0.29
  • Titled Player 6 Months Pass$0.29
2 purchases

JLPT N1 N2 Prep

One-time2
  • Unlock N2$3.99
  • Unlock N1$3.99

Questions

Is Chess Visualization free?
Chess Visualization is free to download, with in-app purchases available.
Is JLPT N1 N2 Prep free?
JLPT N1 N2 Prep is free to download, with in-app purchases available.
Do Chess Visualization or JLPT N1 N2 Prep have ads?
Neither Chess Visualization nor JLPT N1 N2 Prep shows ads.
Which is updated more often, Chess Visualization or JLPT N1 N2 Prep?
Chess Visualization ships an update every 5 days, and JLPT N1 N2 Prep daily. Most recently, Chess Visualization was updated on November 5, 2026 and JLPT N1 N2 Prep on October 31, 2026.

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