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For each vehicle, input your fill-ups in a matter of seconds, and keep track of the evolution of several parameters in different ways (overview, graphs or lists):
gas consumption
gas price
mileage per month
cost of gas per mile/kilometer
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mileage per gallon/liter
mileage per euro/dollar/etc.
A carbon footprint can also be calculated, depending on the vehicle’s consumption. You will thus be able to assess the total mass of carbon dioxide (CO2) it produces, as well as the average value per day and per kilometer traveled.
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Freemium version, limited to 10 fill-ups per vehicle. Integrated purchase unlocks unlimited fill-up creation
Universal application for iPhone/iPad iOS 4.2 and above. Optimized for Retina Display.
App for Android 2.2 and above, optimized for smartphones and tablets.
Help & FAQ
Is the application free of charge?
Downloading the application from the AppStore is free, but you will only be able to create 10 fill-ups. This will allow you to try the application and see if it fits your needs.
When creating the 11th fill-up, you will be given the opportunity to make an In-App Purchase in order to remove this limit. If you decide to make this purchase, you will then be able to create as many fill-ups as you wish.
How can I become familiar with the application?
Installing the application will also create some fictitious but realistic data: one car with a few fill-ups.
You will then be able to browse all the views of Gas Manager, and alter these data as you wish. You will quickly learn how to use the application and its possibilities.
Once you no longer need this sample car, you can, of course, delete it from the application.
How can I restore an application I purchased?
If you lose your in-app purchase because the app was accidentally deleted (or install it on another device), or if you had to restore your device without a backup, the application won’t recognize your first in-app purchase but you are able to unlock it again for free.
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iOS: select the About tab, tap the Settings button, tap the “Restore in-app purchase” button
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Android: select the About tab, tap the Purchase button, hit the “Restore in-app purchase” button
Important note: make sure that your device is connected to the iTunes or the Google Play account you used for the first in-app purchase.
Your in-app purchase will be restored, and you won't be charged again.
iOS: You can restore your in-app purchase on up to 5 different iOS devices, using the same iTunes account. More information about in-app purchases at:
http://support.apple.com/kb/ht4009
Possible errors when making in-app purchases:
Error messages: “In-app purchases are currently disabled.” or “There was an error purchasing this item, please try again.”
Check the following items:
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iOS: in-app purchases are enabled (iOS Settings, General, Restrictions, In-app purchase)
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your Internet connection is OK
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you are properly connected to your iTunes or Google Play account (iOS: iOS Settings, Store, Apple ID, Android: Play Store, Settings, Account), and your credit card details are valid.
Error message: “This item is currently being modified”
Check the following items:
you are properly connected to your iTunes or Google Play account (iOS: iOS Settings, Store, Apple ID, Android: Play Store, Settings, Account), and your credit card details are valid.
if there seems to be nothing wrong with your iTunes account, contact the Apple Express Lane at:
http://www.apple.com/support/contact/
Can I use the application for a two-wheeler?
Yes: a two-wheeler generally has the same characteristics as a car in terms of budget and fuel consumption. Gas Manager enables you to manage all motorized vehicles indistinctively: cars, motorcycles, mopeds, scooters, quads, etc.
How can I delete a vehicle?
iOS: select the Vehicles tab, hit the Edit button, then the red sign to the right of the vehicle you want to delete, and confirm the deletion.
Android: select the Vehicles tab, make a long-press gesture on the vehicle you want to delete, and confirm the deletion.
Note: Confirming the deletion of a vehicle will also delete all the fill-ups linked to that particular vehicle.
How can I delete a fill-up?
iOS: select the Vehicles tab, select the fill-ups button, hit the Edit button, then the red sign to the right of the vehicle you want to delete, and confirm the deletion.
Android: select the Vehicles tab, select the fill-ups button, make a long-press gesture on the fill-up you want to delete, and confirm the deletion.
How can I add a vehicle?
Hit the “+” button in the car list. You’ll be prompted to enter the vehicle name and its approximate mileage at the last fill-up.
Note: For instance, if your car displays 1000km, consumes approximately 10l/100km (or 25 MPG), has a tank of 50l and your tank is half full, then the mileage at your last fill-up was approximately 750km, because you used 25l and thus traveled 250km.
How can I link a picture to a vehicle?
Go to the vehicle’s description then hit the “Edit” button in the navigation bar. Hit the camera icon and select whether you want to take a picture or use one from your library.
How can I add a fuel fill-up?
Important: fill-ups have to be entered in chronological order. Otherwise, the vehicle odometer value will not be updated automatically.
Select the vehicle in the main list, then hit the “Fuel” label, which will display the fill-up list.
Hit the “+” button. Input the amount and volume of the fill-up, as well as the current mileage of the vehicle.
Note: It is important to enter the total mileage of the vehicle, not just the distance you traveled since the last fill-up.
The application then calculates the distance you traveled since the last fill-up, the fuel price and your average consumption, which will help you check that the data you entered is correct.
The fill-up list also enables you to modify or delete previously entered data (in case you made a mistake).
When you input a new fill-up, the current mileage of the vehicle is automatically updated with the value you enter. You can nonetheless modify that parameter manually if you need to (if you forgot to register a fill-up, for example).
It is possible to enter partial or complete fill-ups. For partial fill-ups, simply activate the Partial Fill-up switch.
How can I manually modify the mileage of a vehicle?
You input the mileage of a vehicle when you create it. It is then automatically updated every time you enter the data about a tank refill.
If you need to (for example, if you made a mistake when first typing the mileage, or if you want to delete or recreate fill-ups, or if you lent your vehicle and someone else filled it up), you are able to manually modify the mileage by following these steps:
select the vehicle, then hit the “Edit” button at the top right of the screen
Select the “current mileage” cell and enter the new value
Please note that the value you enter will be used as former mileage when you input the next fill-up.
How can I enter the fill-up history?
You have two options for inputting your fill-up history into the application:
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1) Manually:
Fill-up data have to be entered chronologically, so it is important that no newer information is entered before you try to enter older data. If this is the case, you first have to delete these data.
Before entering the information about the first fill-up into the history, modify the current mileage of the vehicle so that it fits its mileage at the time of that particular refill (see previous question).
You can then enter all the history of your vehicle fill-ups, always making sure that this is done in chronological order.
2) Automatically (import of a CSV file):
Your CSV file can be of two types:
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USA/UK CSV file:
the decimal separator is a period/full stop and the value separator is a comma -
Non imperial countries CSV:
the decimal separator is a comma and the value separator is a semicolon
Create a “fuel.csv” file formatted as follows (one row for each fill-up):
date, format YYYYMMDD
amount paid
gas amount
current odometer value
odometer value at previous fill-up
partial fill-up (empty, or “yes”)
comment (optional)
The file must not contain characters with accents or quotation marks.
Examples of valid CSV files for both types (2 fill-ups in May 2011):20110501,61.25,42.5,1543,915,,comment
20110524,75.53,52.27,2207,1543,yes,Or:
20110501;61,25;42,5;1543;915;;comment
20110524;75,53;52,27;2207;1543;yes;-
iOS (iPhone, iPad):
Connect your device to your computer
In iTunes, select your target device (below Devices), and click on the “Apps” button.
Below File Sharing, in the list on the left, select Gas Manager
Click on ‘Add’ in the list on the right
In the displayed window, select the “fuel.csv” file you created
in step 1 (see above).The file is transferred to your device.
On your target device, select About, Settings, Database Management
Select “Import Fuel CSV File”
Select the vehicle and confirm the import by clicking on the “import file” button
Android Devices:
copy your « fuel.csv » file in the /mnt/sdcard/data/GasManager folder of your Android device. The file is transferred to your device.
On your device, select the About tab, Database
Select “Import Fuel CSV File”
Select the vehicle and confirm the import by clicking on the “import file” button
How can I add the first fill-up of a brand new or used car?
This fill-up is a little bit special because the driven mileage will probably not be realistic (for example, car bought with a current mileage of 5 miles and completely filled up after 10 miles driven) and is thus not relevant for the consumption calculation.
We therefore advise you to not enter this fill-up into the application.
How is the carbon footprint calculated?
The mass of CO2 emitted by your vehicle is essentially linked to its fuel consumption (and therefore to fill-ups). The equivalence used in Gas Manager is that a liter of consumed fuel equals the emission of 2.3 kg of CO2 (gasoline) and 2.7 kg of CO2 (fuel oil / diesel).
How can I choose an e-mail recipient for exported data?
Once the content of the e-mail is displayed, simply populate the “To” field: you can then enter an e-mail address with the keyboard or hit the “+” button to select a contact from your directory. You can add more than one recipient, and send the e-mails using copy or blind copy.
iPhone & iPad devices: Saving and transferring data to another device:
How can I save the application data?
Application data backup is a built-in feature of your iPhone-iPad and iTunes, as long as you regularly synchronize your device with iTunes on your PC or Mac.
At the beginning of the syncing process, iTunes saves the following data from your device:
Contacts and Contact favorites
App Store Application data
Application settings, preferences and data
Music, videos, photos, etc.
When you change your device, or even with your current device, you are able to restore that backup with iTunes. You will thus be able to retrieve all the data and content saved during the last syncing.
For more information about backup saving and restoring, please visit:
http://support.apple.com/kb/HT1766?viewlocale=us_US
You can also use the “iTunes Database export” feature (see below) to run an individual backup of your application data. Be careful to properly save the “Database_Export.db” file on your PC or Mac.
iTunes: How can I transfer my database to another device?
This process will allow you to export your application database to another device.
A) From your source device (device A):
select About, Settings, Database Management
select “Export Database”
connect your source device to your computer
in iTunes, select the device (below Devices), and click on the “Apps” button.
below “File Sharing” from the list on the left, select the application
from the list on the right, select the “Database_Export.db” file and click on “Save to”.
in the window that appears, select the destination where you want to save the file, and click Choose.
B) From your target device (device B):
connect your device to your computer
in iTunes, back up your device.
in iTunes, select your target device (below Devices), and click the “Apps” button.
Below File Sharing, in the list on the left, select the application
Click on ‘Add’ in the list on the right
in the window that appears, select the the “Database_Export.db” file you saved in step A.6 (see above).
the file is transferred to your device.
on your target device, select About, Settings, Database Management
select “Import Database”
Just confirm the import by clicking on “Yes” in order to replace the former database by the one just transferred.
Once finished, device B contains exactly the same data as device A.
Note 1: the Export feature can be used to back up your app database: in this case, select the ‘Database_Export.db’ file in iTunes, and click on ‘Save to’ to back it up on the chosen support (hard disk, USB storage, etc.).
Note 2: another way to back up your device is to Sync it with iTunes.
iCloud: How can I transfer my application database to another device?
Running iOS 5 with a valid iCloud account, you can export your application database from your device to another device (iPhone, iPad or iPod touch) using the same iCloud account.
A) From your source device (device A):
select About, Settings, Database Management, Import Export
select “iCloud - Export Database”
B) From your target device (device B):
select About, Settings, Database Management, Import Export
select “iCloud - Import Database”. Check that the date and time correspond to the file you exported from device A.
just confirm the import by clicking on “Yes” in order to replace the former database of device B by the one just transferred from device A.
Once finished, device B contains exactly the same app data as device A.
Note 1: iCloud sync may take several minutes to complete, especially when data size is large and Internet connection, slow.
Note 2: if you have just installed and launched the app on device B, you are advised to wait a few minutes for the app to sync with iCloud, before exporting your data from device A.
Android devices: Saving and transferring data to another device:
Android: How can I save the application data?
You can use the “Database export” feature (see below) to run an individual backup of your application data. Be careful to properly save the “Database_Export.db” file on your PC or Mac.
Android: How can I transfer my database to another device?
This process will allow you to export your application database to another device.
A) From your source device (device A):
select About tab, Database
select “Export Database”
connect your device A to your computer
in the /mnt/sdcard/data/GasManager folder (device A), select the « Database_Export.db » file and copy it to your computer (or any other device, USB Key, etc)
B) From your target device (device B):
connect your device (device B) to your computer
select the the “Database_Export.db” file you saved in step A.4 (see above), copy this file to the /mnt/sdcard/data/GasManager folder (device B)
the file is transferred to your device B.
on your device B, select About tab, Database
select “Import Database”
Just confirm the import by clicking on “Yes” in order to replace the former database by the one just transferred. Once finished, device B contains exactly the same data as device A.
Note 1: the Export feature can be used to back up your app database: in this case, select the ‘Database_Export.db’ file in iTunes, and click on ‘Save to’ to back it up on the chosen support (hard disk, USB storage, etc.).
Note 2: you have the option to transfer your "Database_Export.db" file via email, Thus, you do not need to connect your Android device to your computer.


