# \#credits

**URL:** https://community.materialssquare.com/tag/credits/24.md

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## [Q. Why is my credit balance now negative?](https://community.materialssquare.com/t/q-why-is-my-credit-balance-now-negative/329)

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**Author:** [@jihee.y](https://community.materialssquare.com/u/jihee.y)\
**Replies:** 0\
**Last updated:** [May 31, 2024, 5:56am UTC](https://community.materialssquare.com/t/q-why-is-my-credit-balance-now-negative/329 "2024-05-31T05:56:54Z")

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A. If your credits are fully exhausted while a calculation is in progress, the job will be stopped. Credit balance checks are not performed in real-time but are done at one-hour intervals. Therefore, based on the computi…

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## [Q. Why have I not received my invite credits?](https://community.materialssquare.com/t/q-why-have-i-not-received-my-invite-credits/332)

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**Author:** [@jihee.y](https://community.materialssquare.com/u/jihee.y)\
**Replies:** 0\
**Last updated:** [June 3, 2024, 1:18am UTC](https://community.materialssquare.com/t/q-why-have-i-not-received-my-invite-credits/332 "2024-06-03T01:18:28Z")

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A. Thank you for inviting your friends to Materials Square! To be eligible for the $10 credit offered as part of our referral program, both accounts of the inviting user and the invitee(s) must be Academic users (and mu…

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## [Q. How do I purchase credits?](https://community.materialssquare.com/t/q-how-do-i-purchase-credits/328)

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**Author:** [@jihee.y](https://community.materialssquare.com/u/jihee.y)\
**Replies:** 0\
**Last updated:** [May 31, 2024, 2:52am UTC](https://community.materialssquare.com/t/q-how-do-i-purchase-credits/328 "2024-05-31T02:52:56Z")

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A. Credits and Atom Packs (Credit Bundle Packages) can be purchased through the ‘Credits Management’ tab on the ‘Account’ page. If you sign up as an academic/institutional account, you can receive $10 in welcome cred…

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## [Q. What are the different purchasing options for Materials Square?](https://community.materialssquare.com/t/q-what-are-the-different-purchasing-options-for-materials-square/320)

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**Author:** [@jihee.y](https://community.materialssquare.com/u/jihee.y)\
**Replies:** 0\
**Last updated:** [May 31, 2024, 2:12am UTC](https://community.materialssquare.com/t/q-what-are-the-different-purchasing-options-for-materials-square/320 "2024-05-31T02:12:28Z")

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A. At MatSQ, registered users can enjoy free access to modeling, pre/post-data processing, and a variety of features. However, to initiate a simulation and use MatSQ’s cloud computing resources, you must load your accoun…