I'm not a programmer, so I'm curious how difficult it is to add automatic translation to an app or game. I play a mobile game that has a small translate button beside each chat message. It translates messages into the language selected in the game, and although it isn't perfect, it works surprisingly well and makes chatting with players from other countries much easier. Why don't more apps and games offer something similar? Is translation difficult to configure and implement, or is the main issue cost, platform support, or something else? Please explain the technical parts in beginner-friendly terms.
4 Answers
Cost isn’t the only reason. Developers also have to consider privacy, latency, moderation, and reliability. Chat messages may be sent to an outside company for processing, translations can be delayed or incorrect, and the service might be unavailable or change its pricing. For games with lots of short messages and many players, those costs and operational issues can be significant even if the feature looks simple to users.
Translation itself is genuinely complicated. Languages don’t map word-for-word, and sentence order, grammar, gender, tone, slang, and context can all change the correct translation. A small game usually avoids having to solve those problems itself by using an established translation service that has already trained models on large amounts of text. The game’s download can remain small because the translation work happens online rather than being stored entirely inside the app.
Most developers don’t build the translation system from scratch. They usually connect the app to a third-party translation service through an API. The app sends the message and the source and target languages, then displays the translated text returned by the service. That basic integration can be fairly quick, but the service usually charges based on the amount of text translated, so chat-heavy apps can accumulate significant costs. Another option is running an open-source translation model on the company’s own servers, but that requires hardware, maintenance, and technical expertise.
So the actual connection is relatively simple, and the bigger issue is paying for every message and keeping the system running?
Translation is becoming easier because phones and operating systems increasingly provide built-in translation tools. Some newer Android and Apple devices can translate on the device, and several browsers are adding similar capabilities. On-device translation can reduce server costs and improve privacy, but it may only work on newer hardware and may support fewer languages. That’s one reason the feature isn’t available consistently across every app and device yet.
Building a translator from scratch would be a huge project, but adding a button that sends text to an existing translation API is much easier. The developer mainly has to handle the connection, display the result, deal with failures, and pay for usage.