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If unconfirmed for a specific period of time, do popular wallets remove transactions from the mempool? Are there some wallets where if your transaction is never confirmed, your funds are never returned?

  • Could you please specify which wallets you consider popular and would like to hear more about? – Murch Mar 27 '17 at 21:55
  • Sure. I don't have stats to hand but these are the mobile wallets listed on bitcoin.org/en/choose-your-wallet. How do their policies compare? – Michael Folkson Mar 27 '17 at 22:07
  • Well, that's progress already. ;) So you're trying to figure out which mobile wallet you want to use? What operating system? – Murch Mar 27 '17 at 22:09
  • No I already use a number (GreenAddress, Airbitz, Bitwallet etc) I'm interested from a UX perspective. – Michael Folkson Mar 27 '17 at 22:17
  • I see. Perhaps this related question is of some use: What happens if your transaction is never confirmed?— In regard to your question, perhaps it would work better as "What methods can a thin client offer to resolve stuck transactions?", or you could limited the question to a specific wallet, to make it clear what would constitute a complete answer. Or maybe it'll just work fine. ;) – Murch Mar 27 '17 at 22:23
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In general TX is removed after arbitrary time period (14 days for Bitcoin Core) or when mempool size is exceeded and space is needed for fresh TXs. For Bitcoin Core check this answer.

  • This answer is a bit short and only covers part of the topic. Could you perhaps elaborate? – Murch Sep 20 '17 at 20:19

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