High-Accuracy Experiments with Stored and Cooled Ions Daniel Rodri­guez University of Granada/Max-Planck Institute for Nuclear Physics in Heidelberg The coupling of ion traps at Radioactive Ion Beam facilities have made possible in the last decade high-accuracy experiments in the areas of nuclear and particle physics. High-accuracy experiments are important for nuclear structure studies, nuclear astrophysics, and the test of fundamental symmetries. This talk will show two existing ion-traps facilities: SHIPTRAP at GSI in Germany, for nuclear structure studies in the region of super-heavy elements, and LPCTRAP at GANIL in France built up to test the V-A theory of the Standard Model. It will follow with a view into the future with MATS at FAIR and the technical developments carried out for immediate use at the KATRIN (KArlsruhe TRItium Neutrino) experiment It will conclude showing REOSTRAP, a state-of-the-art Penning trap mass spectrometer proposed in Spain to contribute to the determination of the electron antineutrino mass.