CO2 Tracker vs Currencies
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CO2 Tracker
Calculate the carbon dioxide output of your flights by entering your departure and arrival cities. Understand the environmental impact of your travel and make more responsible decisions to help protect the planet.
- Calculate flight CO2 output
- Enter departure and arrival cities
- Select from 40 aircraft types
- Determine flight distance
- View percentage of annual safe CO2 output
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Have you ever wondered if your travel habits take a toll on the environment? Now, you can find out! CO2 Tracker allows you to calculate the carbon dioxide output for any flight between any two places, using a few simple steps. Enter your starting and ending cities, select from a list of 40 different aircraft, find out your flight distance, and then, your carbon dioxide output. The app also tells you what percentage of your total annual safe CO2 output the flight's emissions will constitute. CO2 Tracker can help you determine the potentially harmful environmental effects of your travels, and hopefully, can guide you to make responsible travel decisions in the future. Let's save the planet! This app works best with your screen in portrait orientation.
Currencies
This app provides fast and accurate currency conversion, ideal for travel and international payments. It offers offline access to the latest exchange rates and allows users to track currency trends with historical charts. No registration or internet connection is required for basic conversion.
- Instant currency conversion
- Offline rate access
- Automatic rate updates
- Historical exchange rate charts
- Customizable currency lists
- Minimal interface
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Currencies – Quick Converter Fast Currency Converter for Travel and Exchange Rates Looking for a fast and reliable currency converter for your travels? Currencies – Quick Converter is a powerful exchange rate calculator designed for travel, international payments, and everyday currency conversion. It helps you quickly understand prices and manage expenses wherever you go. Convert currencies instantly. Track exchange rates. Check fuel prices while traveling. Use it offline anywhere in the world. Accurate Exchange Rates Get reliable exchange rate data from official sources. Automatic updates when online. Saved rates for offline currency conversion. Always ready when you travel. Instant Currency Converter Choose any base currency. Monitor multiple currencies at once. Enter any amount and see instant results. Customize your currency list. Fast exchange rate calculator designed for speed. Fuel Prices for Travelers Traveling by car? The app now shows the average fuel price for the selected country using official data sources. This helps you better estimate travel costs and plan your trips more efficiently. Note: Actual fuel prices may vary depending on the gas station. Travel Friendly and Offline Ready Traveling abroad? Your latest exchange rates are stored on your device so you can convert currency even without internet access. No roaming stress. No registration required. Just open and convert. Track Currency Trends View historical exchange rate charts. Compare currencies relative to your selected base currency. Follow forex movements with clarity. Why Currencies – Quick Converter Fast currency conversion Accurate exchange rate data Fuel price information for travelers Offline support Minimal interface No login required Download Currencies – Quick Converter and make it your simple travel companion for currency conversion and price awareness anywhere in the world. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://exndiver.ovh/privacy-policy/
Screenshots
Verdict
The clearest difference is in-app purchases: CO2 Tracker at none against Currencies's 2. CO2 Tracker also leads on ads (none vs shown) and review sentiment (100% vs 75%). Currencies's advantage is update cadence (every 2 weeks vs every 3 months) and ratings volume (56 vs 3). On price 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. Currencies sells 2 in-app purchases, starting at $1.99 per month. CO2 Tracker asks for nothing beyond the download.
CO2 Tracker holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Currencies has 56 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 100% of CO2 Tracker's written reviews are positive against 75% of Currencies's.
CO2 Tracker ships an update every 3 months, Currencies every 2 weeks. Both last shipped on October 24, 2026.
| Parameter | CO2 Tracker | Currencies |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.7 (56 ratings) |
| Positive reviews | 100.0% of reviews — better | 75.0% of reviews |
| Number of ratings | 3 | 56 — better |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 11 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Madhu Raghavan | ALEKSANDR BRYNTSEV |
Customer experience
CO2 Tracker
Currencies
In-app purchases
CO2 Tracker
No in-app purchases
Currencies
- No Ads – Monthly$1.991 Month
- No Ads – Yearly$11.991 Year
Questions
Is CO2 Tracker free?
Is Currencies free?
Which has better reviews, CO2 Tracker or Currencies?
Do CO2 Tracker or Currencies have ads?
Which is updated more often, CO2 Tracker or Currencies?
Other comparisons
