Currency converter offline

Review by eFreeware

Currency Converter Offline is a travel utility from developer Mezhevikin Aleksei, available free on Google Play. It has been installed more than 10 million times and holds a 4.7 average across 433,995 ratings, which tells you a lot of people have found a use for it. The pitch is simple: convert between currencies, including when you have no connection at all.

That offline claim is the main reason to consider it. Most conversion tools assume you are online, which is exactly the situation you are least likely to be in when you actually need a rate — standing at a market stall, a ticket counter or a register abroad. This one is built to keep working without the internet, so the numbers are there when the signal is not.

It is a narrow tool, and it does not pretend otherwise. There is no budgeting, no expense tracking, no travel planning. What you get is conversion, a calculator and a handful of conveniences around them, in a package small enough to sit quietly on your phone.

Conversions that keep working without a signal

The core of the app is a converter covering 150 world currencies.

The offline mode is the feature I would weigh most heavily. Airplane mode, a foreign SIM with no data plan, a cruise ship, a rural stretch of highway — these are all moments when an online-only converter becomes useless.

Alongside the fiat currencies, the app includes Bitcoin, Ethereum and Litecoin. That is a small, specific list rather than a full crypto catalog, but it covers the three names most people would look for.

The calculator and the small touches

A calculator is built in, with the four basic operations. That sounds minor until you are totaling several items in a foreign currency or splitting a bill, and doing the arithmetic in one app saves bouncing between tools.

Numbers can be copied and pasted, which matters more than it first appears: pasting a price from a message or a note beats retyping it and mistyping a digit. The smart currency search works the same way, letting you look up a currency by name or code rather than scrolling a long list.

There is a dark theme, and the app is described as small in size. A light-on-dark interface is easier on the eyes at night, and a lightweight app is less of a commitment on a phone with tight storage.

What to expect when you install it

The app is free to download, though it does contain ads and offer in-app purchases. A recent update fixed a bug so that no more than one ad appears per day, which suggests the ad load is meant to stay light.

I would not expect a lengthy onboarding. The practical preparation is on your side: get it ready for the moments when you do not have a connection.

The app was released in January 2020 and last updated in September 2026, so it is a long-running project that still receives attention. For a utility this simple, that continuity is reassuring — the kind of tool you install once and forget about until you need it.

A good fit for travelers and cross-border shoppers

This app suits people who move between currencies often enough to want a dedicated tool: travelers, remote workers paid in one currency and spending in another, and online shoppers buying from foreign stores.

It also fits the light user well. Someone who converts a few times a year does not need a complex finance app, and a small download with a calculator and a dark theme covers that need.

What it is not is a money management tool. It converts, it calculates, and it does so offline. If your needs run to planning and analysis rather than quick arithmetic, this is a narrower instrument than you are looking for.

A dependable converter for the moments you need one

Currency Converter Offline does one job and does it in a way that respects the situation you are usually in when you need it. The offline mode, the 150 currencies, the crypto trio and the built-in calculator cover the practical cases, and the small size and dark theme make it easy to keep around. The ad fix in the latest update is a good sign about how the developer treats the experience.

The caveats are clear: it is ad-supported, it offers in-app purchases, and it is a converter rather than a finance app. None of those are surprises, and none of them undermine the core function.

If you travel, shop across borders or deal in more than one currency, this is a sensible thing to have on your phone.

What's new in version 3.2.1

Fixed a bug with ads: no more than one ad per day, as intended.