Diesel CO2 vs First Player
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Diesel CO2
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This is a can calculate the fuel consumption (diesel) and carbon dioxide emissions from utility.
First Player
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Let this app decide who is the first player in your game. Up to 12 players supported. Completely free โ no ads, no accounts, nothing locked behind a purchase. There's an optional tip jar if you'd like to support development. Totally random result each time.
Screenshots
Verdict
The clearest difference is in-app purchases: Diesel CO2 at none against First Player's 1. First Player's advantage is update cadence (every 5 days vs every 10 months). On price, ads, device support and iOS requirement 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. First Player sells 1 one-off in-app purchase. Diesel CO2 asks for nothing beyond the download.
Diesel CO2 ships an update every 10 months, First Player every 5 days. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.
| Parameter | Diesel CO2 | First Player |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 months | Every 5 days โ better |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 15.6 โ better | 16.6 |
| Further details โ not scored | ||
| Size | 2 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Addison Mai | Gary Watson |
In-app purchases
Diesel CO2
No in-app purchases
First Player
- Leave a tip$0.99
Questions
Is Diesel CO2 free?
Is First Player free?
Do Diesel CO2 or First Player have ads?
Which is updated more often, Diesel CO2 or First Player?
Other comparisons
