CalcLockAt a glance: The visible portrait and its adjustable depth information are different things. Test the appearance you want, and keep the Photos original if later editing matters.
Separate the finished picture from its controls
A portrait can look beautiful because of background blur, a lighting effect, or the selected focus point. In Photos, supported images can offer controls for changing those choices after capture. An imported image that looks similar does not prove that those controls or the underlying information have traveled with it.
Decide what you want CalcLock to hold: a private viewing copy of the current portrait, or material you expect to edit later. The first can be checked visually. The second requires preserving an appropriate source outside the vault, not assuming an import is an editing archive.
Finish the look in the source app
Review the portrait in Photos before importing it. Apple documents adjustment of Portrait effects, including depth and lighting where supported. Choose a background blur that suits the image and look carefully around hair, glasses, shoulders, and objects near the subject. Strong blur can make an imperfect boundary more noticeable.
Keep your current version if it matters before experimenting with different edits. Do not use a whole collection as the first test of a new workflow. A single ordinary portrait with a recognizable background is enough to show whether the import displays the result you expect.
Inspect the vault copy at full size
Enter the exact expression for the intended CalcLock vault, then press equals twice consecutively. Import the test portrait and compare it with the source. First check overall crop and orientation. Then compare the amount of background blur, the subject's face, and fine edges such as hair against a contrasting background.
Different viewing sizes and screen brightness can make a picture feel different, so compare at a similar scale before concluding that something changed. If a particular effect is missing, keep the original and treat that workflow as unverified rather than assuming a larger import will correct it.
Do not treat blur as removal of private details
A softened background is a photographic effect, not a dependable privacy-redaction tool. A name badge, street sign, reflection, or distinctive location may remain recognizable. Before retaining or eventually sharing a source version, inspect what is actually visible rather than assuming the portrait setting concealed it.
If you need a version with less contextual information, create and verify that version intentionally outside the vault. Keep the distinction clear between an image intended for private viewing and a separately prepared image intended for another audience. CalcLock itself has no sharing or export feature.
Preserve future editing choices independently
Keep the original portrait in a source library or archive appropriate for its format. A flattened viewing copy may not let you change focus or depth later, even when it looks excellent today. The ability to edit in Photos should not be attributed to a different app without direct verification.
CalcLock stores local collections and provides no backup, restore, sync, or forgotten-equation recovery. If the phone is lost or the app is deleted, a preserved source is what gives you another usable copy. Confirm that you can open it independently before doing any storage cleanup.
Questions, answered
Does portrait blur hide personal information securely?
No. Treat blur as an image effect. Inspect signs, faces, reflections, and other context, and use an appropriate deliberate workflow when information must be removed from a version you will share.