iOS FAQs

We have millions of happy users of My Data Manager around the world.  We love helping people manage their mobile data usage. Drop us a note to let us know how we can improve or tell us how we’ve helped you avoid overage fees and saved money. If you are a mobile operator, contact us to learn how we can make your subscribers happy and less frustrated.

Can’t find what your looking for? Head over to the My Data Manager Wiki for more FAQs, known issues, bug fixes and feature requests. 



1. What is My Data Manager used for?
My Data Manager provides ongoing and real–time monitoring of your data usage. It automatically identifies which interface (mobile, wi-fi and roaming) is active and maintains history of your usage for each of these interfaces.
As the app provides an ongoing record of your data usage, you can feel confident about your mobile data expenses and use your device to its fullest.

2. How does My Data Manager track usage?
For the app to update, it needs to be “woken up”. This will happen when you manually open the app. If you have location services enabled, it will also update when you make a “significant location change”, as determined by iOS.

When the app is woken up, it will add all of the usage since the last time it was awake to the current hour. As long as you open My Data Manager before turning off your phone, the usage total will be accurate.

3. How do I create a plan?
In order to create a plan, advance to the mobile or roaming plan creation screen. Select a plan and make sure that you have set a plan type, a plan starting and renewal date as well as your plan limit.

Once all fields are complete, press the back button.

4. What are alarms and how do they work?
Alarms alert you when you’ve used the configured amounts of data to help ensure you don’t go over your mobile data limit.

For example, if you have a 500MB plan you could set the following alarms:

  • Alarm #1 for 250MB so that you know when you are half way through your usage
  • Alarm #2 450MB so that you would be notified when you’re almost at your plan limit

The Daily Alarm will let you know when you’ve used the configured amount each day.

5. What are automatic alarms?
Automatic alarms notify you of the most important events that can happen during your data usage period, such as when you:

  1. exceed your daily budget or your plan limit
  2. have used 90% of your data
  3. when forecast usage shows that you will exceed your plan limit by the end of the period

6. How can I find the 1st day of my billing cycle?
This is often printed on your bill or accessible by viewing your account online. If not, contact your service provider and they can help you out.

7. How do I adjust my total data usage?
Use the ‘Data used’ feature in the Settings screen to set the total amount of data you’ve used so far. This feature is especially useful when you install the app partway through your plan cycle.

8. What is the My Data Map screen for?
If you enable Location–Based Usage, the map screen will show the locations where you’ve been using your data.

9. I just started my plan cycle, but my forecast usage is really high. Why is that?
Your forecast usage is based off your average usage over the past few days. If you used a lot of data near the end of your previous plan cycle, then your forecast is calculated assuming that your heavy data use may continue. If you stay within your daily budget for several days in a row, then your forecast should dip back below your plan limit.

10. My carrier shows that I used more or less data than what My Data Manager shows. Why is that?
The most common reasons why this may occur are:

  1. Some carriers round up your usage, whereas the app counts without rounding.
  2. My Data Manager assumes that your plan rolls over at 12:00AM on your billing day.
  3. Your carrier could roll over at a different time, especially if they’re in another time zone.
  4. Your plan rollover hour may not be at 12AM. This is common when your carrier is located in another time zone. You can change your rollover hour from the plan settings screen.
  5. The app only sees what your phone can see. In all network communication there is some lost data that needs to be resent. If it took five attempts for data to reach your phone, your carrier may count the five attempts, but the app would only see the successful transfer.
  6. Your plan may allow unlimited usage for some apps, services, or web pages.

11. I’m starting a new Pre–Paid plan. How do I start from zero usage?
When setting up the new plan’s starting date, use the “Now” button. This will start you off from the current minute, instead of including all data from the current hour.

12. Does My Data Manager support multiple SIMs?
Yes, mobile and roaming usage will be tracked separately for each SIM. My Data Manager will automatically detect a SIM change.

13. What is Streaming Media?
Media apps like YouTube and Slacker Radio use the operating system to stream video or music on their behalf. If My Data Manager can’t identify which app requested the media, the usage is tracked as Streaming Media.

14. Why do I need to enable VPN configuration?
App tracker & Data saver features require a VPN configuration to simply create the App list and block trackers on your device.
However, unlike traditional VPN services, My Data Manager does not hide your IP address or physical location.

15. How does roaming detection work?
The app detects if you are roaming based on the country that you’re in. If you’re using data in your home country, the data will be counted as mobile, if you’re using data outside your country it is counted as roaming.

16. What is Opt-out?
Opt-out allows you to remove yourself from any data collection related to anonymous mobile market research.

17. How do I reset the app?
When you set up your new pre-paid plan, tap “Now” after selecting “Starting Date”. This will reset the usage to 0 and your “Starting Date” to the current hour. Your usage history from your previous plan will be retained (along with your other settings).

18. Why does My Data Manager show an increase in battery usage when I enable app tracking?
Rest assured that the app tracking feature does not have a significant impact on your overall battery life. What you are seeing is battery usage move from other apps to My Data Manager.

Technical Details: The app tracking feature relies on inspecting your data usage before it leaves your device. After it counts the usage, My Data Manager then forwards the traffic on to the server without decrypting or altering it. As a result of doing this, all of the battery usage associated with the network activity is now attributed to My Data Manager, instead of the originating app.

19. I have a question not mentioned here, or a suggestion on how to improve the app.
We would love to hear from you! The best way to contact us is to use the Feedback button in the app. This will include system and app version details so that we can help you more easily.

Alternatively, you can email us directly at support@mydatamanager.zendesk.com

20. Why My Data Manager is using a lot of data?
If you have the App Tracker enabled, My Data Manager might appear to use more data than it actually does in iOS settings. The App Tracker uses a VPN configuration to calculate data usage of other apps on your device. However, the data used by these apps might wrongfully appear to be used by My Data Manager. This data is counted twice in your iOS settings, once for the apps that used it, and once for My Data Manager. However, you will not be charged for it twice by your mobile operator. Note: My Data Manager is designed and tested to have minimal impact on your data usage.

21. How to configure the new EU Roaming Policy in My Data Manager?
We suggest you to add the countries you visit more often to your mobile Plan. The data used in selected countries will not be counted under roaming. You can do this by going to Settings –> My Plans –> Additional Options –> Plan Covered Countries. In future we plan to make this feature more efficient.