LENTICULAR PRINT PREPARATION · iPHONE & iPAD

Your images.
A physical flip.

Arrange your pictures, test the pitch of your own lens on paper, and prepare interlaced images and actual-size print PDFs. An offline workbench for small lenticular flip prints.

US$3.99 once. No subscription, ads or in-app purchases. Regional prices vary.

View on the App Store

A physical lenticular lens and suitable printer are separately required. Screens preview version 1.1; check the App Store for the currently released version before purchasing.

Actual iPad Prismturn workspace with the original Day image, ordered frame strip and print inspector — Choose 2–8 images, arrange their order and crop each view.

Test the lens before adding photos.

Version 1.1 adds a separate Lens test. Set base pitch, step, DPI, direction and paper; share a real test PDF and band CSV. Both lens directions use a roughly 100 mm raster span and a separate exact 100 mm ruler. Print at actual size, compare the bands under your lens, then choose a pitch yourself. Keep three-decimal values, a note and named print presets.

Actual generated pitch-test PDF beside manual band selection in the iPad app — Actual digital test sheet. It does not establish physical calibration.

Actual iPhone Choose pitch screen with explicitly selected 60.000 LPI example — A representative manual selection, not an automatically measured result.

From ordered pictures to five files.

01 / ARRANGE

Keep each view.

Import your own images, adjust fit or crop, zoom and position, then preview each source frame.

02 / INTERLACE

Set the physical geometry.

Control print size, DPI, effective lens pitch, direction, phase and frame order. Inspect the actual interlaced raster.

03 / SHARE

Take real files to print.

PNG with DPI metadata, actual-size print PDF, pitch-test PDF, settings CSV and editable JSON with source images.

Actual iPad Print files view with generated interlaced print PDF and five separate share actions

Check the paper, then the lens.

Print at 100% / actual size and disable Fit to Page. Measure the reference ruler before choosing a band. Lens pitch, viewing distance, printer scaling, materials and mounting affect the final effect.

Prismturn does not infer 3D depth, simulate a physical lens, automatically measure calibration, control a printer, produce video or guarantee lens compatibility. Source images are retained at up to 1600 pixels per edge; output is limited to 4096 pixels per edge.