This is a copy and paste from our official Terms and Conditions found here: https://electroneum.com/terms-and-conditions/
17.1 The App provides access to our mobile mining function through which ETN may be periodically added to your pending balance whilst the app remains running on your mobile phone and connected to https://electroneum.com (“ Mobile Miner ”).
17.2 You must:
17.2.1 only use the Mobile Miner on mobile phones and not on any other device;
17.2.2 only use the Mobile Miner on one mobile phone per account and only one account per person, which you hold with us;
17.2.3 not emulate the Mobile Miner on any device regardless of whether physical or virtual;
17.2.4 not adapt, reverse engineer, decompile, disassemble, or modify the Mobile Miner; and
17.2.5 only use the Mobile Miner for lawful purposes.
17.3 Any breach of clause 17.2 shall entitle us to permanently disable your access to the Mobile Miner without further notice to you.
17.4 You are responsible for ensuring that your mobile phone meets the minimum system requirements set out at clause 22.
17.5 In order to benefit from use of the Mobile Miner your mobile phone must be connected https://electroneum.com and the App must be running on it. You must monitor your use of the App and we shall not be liable in any way for any loss, damage, expense or liability you may incur (including mobile data or other charges) as a result of your use of the App.
17.6 The amount of any payment of ETN made by us to you, the payment threshold and rate at which ETN may be added to your pending balance as a result of your use of the Mobile Miner, are subject to change and determined by us at our absolute discretion. We offer no representation, warranty or guarantee as to the amount of ETN which may be generated through your use of the Mobile Miner.
17.7 We make no warranty, representation or guarantee as to the regulatory or tax status regarding your access and use of the Mobile Miner: please refer to clauses 9 and 10 of these terms.