OpeningTree vs Murder & Method
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
OpeningTree
Explore chess openings with an extensive opening book and engine analysis. Analyze your games, create custom lines, and study moves from high-rated players. Accessible for visually impaired users.
- Extensive opening book
- Crafty engine analysis
- Load and analyze PGN games
- Create custom move lines
- Accessible for visually impaired
- Mark moves with colors
- Save board to PGN
Read full descriptionHide full description
OpeningTree is a chess openings book based on high rated over the board games that lets one explore the tree of openings and engine analysis is available. Chess game files can be shared with the app to check against the book or to just view. Users can make their own side line moves and back up to return to main line. Also includes ten classic game collections and users can import their own games into the app. Game list are also searchable by tags. The updated opening book is compiled from 640,000 high rated games from recent years with both players rated 2300 and over. Just touch moves in the list or make moves on the board to see what the response is. The numbers next to moves indicate how many games resulted in wins-draws-losses. The idea comes from computer opening books as if we can open up the book and see what those moves are that people play in response to opening positions. Users do not pick an opening to study but start with the full tree. The analyze button on bottom right of board is to flip between viewing the openings move table or seeing Crafty engine analysis. +1.00 score means white is ahead a pawn. -1.00 score means black is ahead a pawn. There is a move now button to make the engine play the current best move if the users wants to try playing a position out against the engine. OpeningTree's board is accessible to the blind and visually impaired using Voice Over. With Voice Over enabled in device settings, tap on a square for info, double tap to select. Or choose from three move methods. When going forward in a loaded PGN game, moves will be announced on each tap of the forward button. Moves can be marked with colors(red, green, yellow) and colorizing a move at the end of a line will extend the line i.e. add move so it shows later. There is also an option to make a note on a position using the control bar. In the Actions menu if the user has imported a chess games file to the App, for example by opening a PGN file with OpeningTree from a mail attachment or download(long touch on the attachment/download for this option), a game from a PGN file can be loaded and checked against the book. If a user makes a new move, back up to the main line to return to the game. To ensure speed, it will only read/load a max of 5000 games. With bigger files users will only see first 5000 games. There is a Save Board to PGN option on the Actions menu. It saves the current moves to openings-user-games.pgn, a file OpeningTree will create on first save. Games are saved with opening name as white and black name to spot the lines in each game. This allows the users to export data out of the App such as favorite lines with the mail games option when looking at a game list. The App comes with six PGN game files that can be optionally installed when no PGN files have yet been opened by the App or the user has deleted their PGN files previously opened and likewise has none to access. If this is the case, this option shows when going to Actions -> load PGN. The files contain a mix of famous classical games, collections of former world champions Gary Kasparov and Magnus Carlsen's games and more recent games from two top ranked international tournaments. PGN stands for portable game notation. It's a file extension that can be used with text files that contain chess games in the PGN format. PGN files can be read by apps to display the games in them. If a game is loaded in the App one can then go to 'Actions -> show game data' to view the raw PGN text.
Murder & Method
Read full descriptionHide full description
The Society receives the files that even the Yard cannot close. You are its newest candidate. Every case begins with a floor plan, a handful of people and their statements. Each row and each column contains exactly one figure. The murderer is whoever was alone in a room with the victim. Every statement is true. Every case has a solution, and the cards prove it. Everything you need to find it is right in front of you. No guessing. No clock. No luck. Just deduction. HOW TO PLAY • Read the statements. Each card reveals something about where a person was standing. • Reconstruct the scene. Place the figures, eliminate what is impossible and keep track of what remains open. • Ask the Inspector. If you get stuck, three levels of hints are available – each a little more explicit, always based on your own board. • Make your accusation. The Society does not ask for suspicion. It asks for proof. THE LONDON CASEBOOK 120 files. London, 1928–1940. A séance in Chelsea. A boxing hall after midnight. The Underground at night. A diamond office in Hatton Garden. An incident high above the rooftops of St Paul’s. Across twelve years, guests, suspects and victims return again and again. Some names disappear. Others return. The casebook can be browsed chronologically or by file series. The cases lead from your first admission file to the Master Files. The difficulty grows not through ever larger boards, but through what matters: the depth of the deduction. THE PRACTICE ROOM Members also gain access to the Society’s practice room. There, earlier crime scenes are reconstructed with new casts and recombined again and again. No one dies. Everyone learns. AN ILLUSTRATED WORLD Painterly character portraits, illustrated crime scenes and furnishings, and a casebook inspired by the London of the late 1920s and 1930s. Murder & Method is fully available in English, German, Italian, Spanish and French. MEMBERSHIP The ten files of the admission examination are free. Those who pass may join the Society. A single purchase unlocks the remaining 110 files of the London Casebook. Introductory price until 31 December 2026. The regular price applies thereafter. No ads. No subscription. No account. No tracking. No energy. No coins. Fully playable offline on iPhone and iPad. Made in Düsseldorf by Lindhavn Studio.
Screenshots
Verdict
The clearest difference is price: Murder & Method at Free against OpeningTree's $0.99. OpeningTree's advantage is in-app purchases (none vs 1) and iOS requirement (15.6 vs 17.0). On update cadence, ads 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
Murder & Method is free to download; OpeningTree costs $0.99 up front. Murder & Method sells 1 one-off in-app purchase. OpeningTree asks for nothing beyond the download.
OpeningTree ships an update every 2 months, Murder & Method every 5 weeks. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.
| Parameter | OpeningTree | Murder & Method |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.4 (31 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 31 — better | — |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 52 MB | 79 MB |
| Age rating | 4+ | 12+ |
| Developer | Michael Adams | Jan Hendrik Wergin |
In-app purchases
OpeningTree
No in-app purchases
Murder & Method
- Full London Casebook$0.99









