If you have an 32GB iPad then the PIM app should be able to accommodate about 8000 Inspections (containing roughly 4 photos per Inspection area based on 14 Inspection Areas using standard photo quality). That is a rough estimate and it will depend on other apps, number of photos you take, and how much storage space they use, but we don't foresee you having an issue with space and having to delete inspections. We do plan on integrating a backup/sync mechanism in the coming versions as well, which will alleviate any concerns.