You can technically use your Breadwallet-Dash seed with Electrum-Dash for whatever reason (maybe Breadwallet stops working?), but it requires just a bit of tinkering. Unfortunately, because Breadwallet uses deeper derivation paths than Electrum, you can't go the other way around (Electrum -> Breadwallet won't work). You just have to get an "xprv" key from your Breadwallet-Dash seed, at the right depth, which is "m/0p". Then import that into Electrum-Dash. 1. Retrieving the correct Breadwallet-Dash "xprv" key: This BIP39 page is a useful tool for manipulating/displaying BIP32/39 seed data. It has an "Offline Usage" section that you can follow if you're paranoid. To get started, go there and... Enter in your 12-word seed. Change "Number of Words" to 12. Leave Passphrase blank. Leave coin set to 'Bitcoin'. Under "Derivation Path", click the "BIP32" tab. Now in the "BIP32 Derivation Path" box, type: m/0' (That's not a typo.) Then copy the value in "BIP32 Extended Key". 2. Importing that "xprv" key into Electrum-Dash: Open "Electrum-Dash" and go to File->New/Restore. Use "Breadwallet", or whatever name you want for the wallet. In the next box, click "Restore a wallet or import keys". Leave the next option set to "Standard Wallet". Then click "next". Now paste in your value from "BIP32 Extended Key" above. Electrum should detect your BreadWallet-Dash balance and you should now have complete access to your funds. The Seed Mnemonic won't be available in Electrum(-Dash) now, but you will have full access to spend your funds. You will just need to re-follow the steps above if you want to restore your Electrum wallet from seed again, -OR- just send your old Breadwallet funds to a NEW Electrum-Dash wallet with the seed.