Team Sandboxx

Give a Letter, Get a Letter: Introducing Sandboxx’s Referral Program

At Sandboxx, our users often ask us, “how can I share Sandboxx with my friends and family?!” Because of this, we’re incredibly excited to announce an awesome addition to the Sandboxx app: a referral and rewards program that can benefit all of our users, old and new!

This program provides an easy and straightforward way to share Sandboxx with your friends and family so they can use Letters and book travel to support your, and any other, recruit or service member. Additionally, for every new customer you refer to Sandboxx that sends a Letter, we’ll add one free Letter credit to your account (a $4 value)! 💌

Ready to spread the word about Sandboxx and start earning Letter credits? Open your app and follow these simple steps:

1. On the Letters screen, you’ll see an option to earn free Letters. You’ll be able to earn these credits by sharing Sandboxx with your friends and family. Tap “Earn Free Letters” to get started.

2. Next, use the “Send invite” button to share Sandboxx with your friends and family, either via SMS, email, or through another app of your choice (like Facebook Messenger, or WhatsApp).

3. Once someone signs up for a Sandboxx account through your link, they’ll need to purchase a credit for their first Letter and send it. Once your referral sends that first Letter, both you and your referral will receive a free Letter credit (a $3 value) in your respective accounts.

4. To see a complete overview of all of your referrals and the credits that you’ve earned, you can tap “Your earned Letter credits” to access all of this information.

That’s it! There are no limits to the number of people that you can refer to Sandboxx, nor to the number of free Letter credits that you are eligible to earn.

Any questions? Looking for more details about our referral program? You can learn more about the program at any time by visiting our referral program FAQ page.

Once you’re ready to start earning free Letter credits, just open your Sandboxx app and follow the instructions from this post.

Happy Letter earning!


  1. Is there a place where you can see pictures of Parris Island boot camp with current recruits?

      1. Hi, Lynn. We’re sorry to hear this. We would love to discuss this further with you. Please reach out to for further assistance. Thank you for using Sandboxx.

  2. Is there a place where I can see what is happening at Lackland like under kin it lists what they are doing but then when you click on it the page is blank

  3. It isn’t quite clear. After receiving a Sandboxx letter, d
    oes your recruit get a STAMPED pre-addressed envelope or just a pre-addressed envelope in order to write you back?

    1. Hi, Tara. Your recruit does not receive pre-paid postage. They will receive the pre-addressed return envelope and will just need to add the stamp to send the letter. There is miscommunication about the pre-paid stamps. ONLY users who signed up in the app PRIOR to Feb. 17th receive pre-paid stamps. We changed our policy in February, 2018 and any users who signed up prior to Feb. 17th were grandfathered into receiving pre-paid postage. Any users who signed up after Feb. 17th, 2018, will not receive the pre-paid postage. We hope this helps.

  4. Hi, I was sent the link, I downloaded the app, and sent a letter but neither myself or the other person got a free credit? What did I do wrong?

  5. I spent over an hour typing a long letter and and added photo on my laptop only to find it didn’t send or save. Does sandbox not work correctly through PC windows 10? I have on Android too but would prefer to type it out on computer. This is very unacceptable for such an expensive service. Please advise. Willam Blanding

  6. I would like a better explanation on how to become a sponsor I don’t understand about eight letter credits and then if my recruit doesn’t have an email or a bee doesn’t have an account I don’t understand how to set all that up

    1. Hi, AnnaMarie. If you would like for your family and friends to write your recruit but not have to pay to send him letters, then the Morale Booster account is what you would want. We just ask that you at least have 8 credits on your account because we put those 8 credits on your recruit’s account so that when family members right him, the letter is paid for by you. If he doesn’t have a profile in the app, we just ask that you provide us with an email they would use. (If you don’t have one, we can provide one for your recruit) We use that email to create a profile for him so that we can get you started as a Morale Booster. We hope this helps. For more detailed assistance, please email us at Have a nice day.

      1. Good morning thank you for your response okay I have a little over 80 credits that I have paid for I don’t think my son has an email if you can set him up with one this way I have a lot of friends and family that you want to write to him through sandboxx but they don’t know how to do this and lot of them don’t want to pay I already paid so just instruct me and what to do next thank you

  7. My son said he sent me letters thru Sandboxx 2 weeks. Is it normal to not receive them yet? Will I get an alert through the Sandboxx app that I have mail delivery?

  8. Hi. I did refer my daughter to use Sandboxx which she did but neither of us received our credits. Is there something I need to do?

    1. Hi Jean,

      We want to make sure that the referral link is working properly for you. Would you mind sending us an email at so that someone from our team can take a look into this for you?

      Thank you!

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