Reimager: Batch Image Conversion for Professional Workflows
Reimager is a fast, friendly Mac app for batch image conversion and resizing. Drag in files or folders, pick your presets, and run the queue; Reimager handles the rest with reliable, sandboxed performance.

COMING SOON:
SPO2er gives you a clear, easy-to-understand view of your blood oxygen levels throughout the day.
Using data already stored in the Health app, SPO2er displays your latest reading, 24-hour trends, high/low values, averages, and a complete history, both on your iPhone and Apple Watch.
There are no accounts, no servers, and no external data sharing. All information comes directly from HealthKit and stays securely on your device.