Rithmer does not collect personal data. All session configurations and purchases remain on-device. We do not transmit or sell information. Purchases are processed by Apple. If you enable system crash or analytics sharing with Apple, Apple may provide aggregated, anonymous diagnostics


Rithmer is a general wellness tool. It is not medical advice. Consult a healthcare professional before intensive breath holds or if you have respiratory, cardiovascular, or neurological conditions. Do not use while driving or in situations requiring full attention. Stop if you feel dizzy, numb, or unwell.