CO2IN vs Multiply daily
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
CO2IN
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Join the CO2IN ecosystem and help the climate from your phone! CO2IN gives you the tool to reduce your carbon footprint. Our app allows you to reduce the amount of greenhouse gas emissions released into the atmosphere and at the same time support the green transformation. Calculate your carbon footprint Our carbon calculator will quantify your carbon footprint in just a minute. Based on your results, you can immediately acquire the amount of CO2INs that correspond to your annual carbon footprint. Reduce greenhouse gas emissions Every CO2IN in our ecosystem reduces the ability of European polluters to emit harmful emissions into the atmosphere. CO2IN gives the ability to directly influence our climate into the hands of each and every one of you. You will support green projects The money spent on CO2INs are used to purchase EU emission allowances. The proceeds from their auctions go to individual EU countries, which use them to support climate projects. The money that you put into CO2IN will help where it is most needed. We will accelerate the transition to a carbon-free economy Thanks to the removal of emission allowances from the market, you can positively influence their price. That will lead to greater investment in carbon free technologies. Companies will be financially incentivized to reduce their emissions faster, rather than pay more for allowances. Send and receive CO2INs CO2INs can be instantly sent or received from friends and selected merchants within our ecosystem. Transfers can be made to a specific user, or through a QR code. SUPPORT - DO NOT HESITATE TO CONTACT US We have a trained customer support team that will be happy to help you with any problems. If you have any questions, encounter a problem or have an idea to further improve the app, let us know at support@co2in.com.
Multiply daily
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Our app focuses on short 90 seconds long sessions based on a simple principle: consistent daily practice yields better results than lengthy but irregular study. Build multiplication skills naturally through bite-sized daily exercises.
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Verdict
The clearest difference is iOS requirement: CO2IN at 15.0 against Multiply daily's 18.1. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | CO2IN | Multiply daily |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | โ |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 15.0 โ better | 18.1 |
| Further details โ not scored | ||
| Size | 73 MB | 8 MB |
| Age rating | 17+ | 4+ |
| Developer | The CO2IN, a.s. | PETER KAHOUN |
In-app purchases
CO2IN
No in-app purchases
Multiply daily
No in-app purchases









