Kurex vs Ratewind
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kurex
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Kurex — Essential Currency Calculator for Travel Have you ever looked at a price tag while traveling abroad and wondered, “How much is this in my currency?” Kurex is a travel currency calculator that instantly converts local prices into Korean won. Whether you are shopping, eating at a restaurant, visiting a café, taking a taxi, staying at a hotel, or exploring a local market, Kurex helps you understand prices quickly and easily. Kurex is more than a simple exchange rate app. It is designed for real travel situations. You can calculate currency conversion, discounts, tax, tips, split payments, and basic arithmetic in one place. No need to switch between a currency app and a calculator. Key Features Instant Currency Conversion Enter a local amount and immediately see the converted value in Korean won. You can also enter Korean won and convert it back into the selected local currency, making it easier to manage your travel budget. Support for 20 Major Currencies It is useful for trips to the United States, Europe, Japan, China, the United Kingdom, Thailand, Vietnam, Taiwan, Australia, and the Philippines. Split Payment Calculator Traveling with friends, family, or a partner? Kurex helps you split meals, taxi fares, hotel costs, tour fees, and other travel expenses. Select from 2 to 10 people and instantly check the amount per person. Discount, Tax, and Tip Calculation When shopping abroad, discounts can be confusing. Kurex helps you calculate the final price after applying a discount. You can also add tax where needed and calculate tips for restaurants, taxis, and other services. Basic Calculator Functions Kurex also works like a regular calculator. Add multiple item prices, divide expenses, multiply amounts, or calculate totals without leaving the app. It keeps your travel calculations simple and connected. Multi-language Support Kurex supports Korean, English, Japanese, Simplified Chinese, Traditional Chinese, and Thai. It is convenient not only for Korean travelers but also when traveling with international friends. Recommended For Travelers who want to quickly check local prices in Korean won People planning trips to Japan, Thailand, Vietnam, Taiwan, the Philippines, and more Shoppers who want to calculate discounted prices abroad Travelers who need to calculate tax or tips at restaurants Friends, couples, or families who need to split travel expenses Anyone looking for a simple, clean currency calculator without ads or sign-up Kurex requires no sign-up and has no ads. Open the app and start calculating right away. Do not let currency conversion slow you down while traveling. With Kurex, local prices become easier to understand wherever you go.
Ratewind
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Ratewind — currency, made beautiful and useful. No ads. No tracking. No account. One purchase unlocks everything, forever. What you get ・153 currencies. Convert several at once — drag to reorder, tap to switch the base ・Travel mode: a price cheat sheet for where you are, and a tip calculator ・Point the camera at a price tag or a receipt and it reads the amount — all on your device, nothing is uploaded ・Charts from today back to 1999 (1D / 1W / 1M / 3M / 1Y / 5Y), with any number of currencies overlaid. 1D is plotted hour by hour, so you can see today's move ・Rate alerts that notify you when your target is hit ・Three home screen widgets ・5 colour palettes × 3 designs × 7 app icons ・Works offline with the rates it already has About rate updates (please read) Rates refresh every hour — all 153 of them. The long-range history in the chart (before 2021) comes from the official reference rates published by the European Central Bank (ECB), which the ECB itself issues once each weekday. On weekends and public holidays the FX market is closed, so rates barely move. These are not live trading rates, and they are reference rates that differ from what banks or exchange counters actually offer. Please check with your financial institution before acting on them. About Pro (one-time purchase) A single purchase unlocks everything. It is not a subscription. If real-time updates are offered in future, they may be a separate option, since live market data carries a monthly cost. Long-term history: European Central Bank (ECB).
Screenshots
Verdict
The clearest difference is in-app purchases: Kurex at none against Ratewind's 1. Kurex also leads on update cadence (daily vs every 3 days). On price, ads, device support and iOS requirement 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
Both are free to download. Ratewind sells 1 one-off in-app purchase. Kurex asks for nothing beyond the download.
Kurex ships an update daily, Ratewind every 3 days. The most recent releases landed on October 5, 2026 and October 18, 2026 respectively.
| Parameter | Kurex | Ratewind |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily — better | Every 3 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | myungsu lim | Kazuki Tamaribuchi |
In-app purchases
Kurex
No in-app purchases
Ratewind
- Ratewind Pro$3.99









