Comparison

Istanbul vs ShellMate

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

Head to head
About

Istanbul

Compete as a merchant to collect rubies by trading goods and managing assistants across a bustling bazaar. Strategically move your merchant and assistants through various locations, each offering unique actions. Plan your moves carefully to outmaneuver opponents and achieve victory in this acclaimed board game adaptation.

Highlights
  • Collect rubies by trading goods
  • Manage merchant and assistants
  • Explore 16 bazaar locations
  • Increase wheelbarrow capacity
  • Acquire special abilities
  • Play against AI or friends
  • Cross-platform online multiplayer
Features
Read full description

The official digital adaptation of one of the best board games in history – Istanbul. Istanbul is, without a doubt, one of the best board games to have ever been published. The long list of its awards and honors speaks for itself: 2015 Nederlandse Spellenprijs Best Expert Game Nominee 2014 Swiss Gamers Award Winner 2014 Meeples' Choice Nominee 2014 Kennerspiel des Jahres Winner 2014 International Gamers Award - General Strategy: Multi-player Nominee 2014 Hra roku Nominee 2014 Gouden Ludo Winner 2014 Golden Geek Board Game of the Year Nominee 2014 Golden Geek Best Strategy Board Game Nominee 2014 Golden Geek Best Family Board Game Nominee In our 2018 digital version we have maintained all of the features that made Istanbul the fan favorite that it is, but also expanded upon it with a number of tools and features only available on the digital platform. We maintained the authentic board game feeling with the convenience you can expect from an electronic device. So what is the game about? Can you be the first merchant to collect a certain number of rubies? • Run, collect and trade goods across the bazaar • Take control over your assistants • Increase your wheelbarrow capacity • Acquire special abilities to increase the advantage over your competitors • Buy rubies or trade goods for them In Istanbul, you lead a group of one merchant and his four assistants through 16 locations in the bazaar. In each such a location, you can carry out a specific action. The challenge, however, is that to take an action, you must move your merchant and an assistant there, then leave the assistant behind to handle all the details while you focus on larger matters. If you want to use that assistant again later, your merchant must return to that location to pick him up. Thus, you must plan ahead carefully to avoid being left with no assistants and thus unable to do anything… What can you expect? • Official Istanbul game - 100% original rules • Adaptation of TOP 100 board game of all time by BGG ranking • Play with AI, with friends or both • Great artwork by Andreas Resch • Languages: English, German, Dutch, Polish, French, Korean, Japanese, Chinese Simplified, Spanish • Pass and play mode • Cross-platform online multiplayer with synchronous and asynchronous modes • Opponents' last moves replay • 3 levels of difficulty AIs with individual strategies • Preset or random generated game boards • Atmospheric music and sounds • Unique, original board game experience • Intuitive gameplay • Colorblind mode • Over 70 achievements • iPhone X support

About

ShellMate

A fast and playful scoring companion for card games. Easily track player scores, round progress, and manage end-of-round decisions. Supports various scoring elements for a smooth gameplay experience.

Highlights
  • Score tracking for 2-4 players
  • Running totals and round progress
  • Support for Stop and Last Chance endings
  • Base game and expansion scoring
  • Saved player names
  • Privacy-friendly design
Features
Read full description

Shellmate is a fast, playful scoring companion. Keep the table moving while Shellmate handles the maths. Add your players, score each hand, track totals across rounds, and let the app help with end-of-round choices such as Stop and Last Chance. Designed for quick use during a real game, Shellmate supports the base game plus Extra Salt and Extra Pepper scoring elements, including collections, duos, multipliers, mermaids, colour bonuses, events and instant-win checks. Features: - Score rounds for 2 to 4 players - Track running totals and current round progress - Support for Stop and Last Chance round endings - Largest colour series entry for Last Chance - Base game, Extra Salt and Extra Pepper scoring support - Saved player names for faster setup - English and Dutch language options - A subtle glitchy sea-inspired interface - Privacy-friendly: no account, no tracking and no automatic data sharing Shellmate is built to be a companion at the table, not a replacement for the cards. It keeps score, helps reduce mistakes, and leaves the game itself where it belongs: in your hands. Shellmate is an unofficial scoring companion. It is not affiliated with, endorsed by, or sponsored by Studio Bombyx.

Screenshots

Istanbul4 screens
ShellMate4 screens

Verdict

The call

The clearest difference is in-app purchases: ShellMate at none against Istanbul's 1. ShellMate also leads on rating (5.0 vs 4.7). Istanbul's advantage is ratings volume (458 vs 1) and chart position (#57 vs unranked). On 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

CostPrice · In-app purchases · Ads · Monetization

Istanbul costs $2.79 and ShellMate $3.99 up front. Istanbul sells 1 one-off in-app purchase. ShellMate asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ShellMate holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Istanbul has 458 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Istanbul ships an update every 6 weeks, ShellMate every 3 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

Scorecard8 real differences · 3 level
Istanbul versus ShellMate: the parameters behind the verdict, then further details
ParameterIstanbulShellMate
Price$2.79 — better$3.99
Rating4.7 (458 ratings)5.0 (1 ratings) — better
Positive reviews72.8% of reviews—
Number of ratings458 — better1
Update frequencyEvery 6 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank#57 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size451 MB4 MB
Age rating4+4+
DeveloperAcram DigitalMarco Janssen

Customer experience

Istanbul

All ratings452 ratings
Positive94.7%
Neutral2.2%
Negative3.1%
Written reviews151 reviews
Positive72.8%
Neutral9.3%
Negative17.9%

ShellMate

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Istanbul

Reported bugs

4 issues
  • Certain cards/tiles not working as intended
  • Game crashing or freezing during play
  • Online/multiplayer functionality issues
  • Tutorial getting stuck or not working properly

Requested features

4 requests
  • Add the Mocha & Baksheesh and Letters & Seals expansions
  • Implement a companion tool to randomize the board setup
  • Add push notifications for online game turns
  • Support for more languages

ShellMate

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Istanbul

One-time1
  • Mocha & Baksheesh$5.99
None

ShellMate

No in-app purchases

Questions

Is Istanbul free?
Istanbul costs $2.79, and also offers in-app purchases.
Is ShellMate free?
ShellMate costs $3.99, with no in-app purchases.
Which has better reviews, Istanbul or ShellMate?
ShellMate is rated higher. Istanbul averages 4.7 out of 5 from 458 ratings, while ShellMate averages 5.0 from 1 ratings.
Do Istanbul or ShellMate have ads?
Neither Istanbul nor ShellMate shows ads.
Which is updated more often, Istanbul or ShellMate?
Istanbul ships an update every 6 weeks, and ShellMate every 3 months. Most recently, Istanbul was updated on October 29, 2026 and ShellMate on October 25, 2026.

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