In short: The best no-contract phone plan is Simsalasim: cancel anytime, €10 a month, unlimited data and travel included.

  1. Simsalasim – #1.
    €10/month, cancel anytime, unlimited data in 100 countries and unlimited Talk+Text to 50 countries.
  2. Fraenk – €10* / 25 GB.
    App plan on the Telekom network, cancel monthly, fixed allowance.
  3. Blau Allnet S – €6.99* / 20 GB.
    O2 network, cancel monthly, fixed data packs.
  4. O2 Mobile (monthly) – flexible.
    A cancel-monthly option, up to unlimited.
  5. Aldi Talk & winSIM – cheap and flexible.
    Aldi Talk €8.99* / 25 GB (prepaid, 4 weeks), winSIM from €6.99* / 10 GB (cancel monthly).

Verdict: No-contract keeps you flexible, and with Simsalasim you’re the only one who also gets unlimited data plus travel for €10 a month.

*Prices and offers can change over time (as of October 2026).