BOTJAIL
Free forever. Unlock all maths modes for £15 – supports COCOO.UK, a registered charity.
Permanent access
BOTJAIL is free forever. Gauss-Seidel Iteration, and the engine with no maths button, stay free. Permanent access is a one-off purchase of £15 through Google Play. It unlocks every maths mode and all future versions. BOTJAIL is provided by COCOO.UK, a registered charity in England and Wales (No. 1139020). The net proceeds, after Google's fees, support the charitable work of COCOO.UK. If you'd like to support us further, you're welcome to make an optional donation of any amount. Donations don't unlock or change any app features.
Available in the Google Play app
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