The recently developed phase-sensitive ion-cyclotron-frequency measurement technique allows a resolving power of up to 108, corresponding to a few 100 eV, with a relative mass uncertainty at the 10−10 level for nuclides with half-lives of only a few 10 ms. The successful completion of a single-ion detection method such as FT-ICR, will allow mass measurements on longer-lived nuclides produced with minute rates of one particle per day. Along with LaSpec, the first Penning-traps prototype of the MATS setup is also installed at the research reactor TRIGA at Mainz University. In-trap and trap-assisted spectroscopy experiments with dedicated setups are also foreseen in later stages.