Recorded results · Local Photo Upscaler

Photo results and recorded iPhone timings.

Compare existing app-generated examples and see how two historical processing modes performed on iPhone 16 Pro.

By David Balderston · Published November 4, 2026 · Measurements recorded October 6, 2026

One historical test, not a universal speed promise. Recorded October 6 on a charging iPhone 16 Pro. These are processing durations from that Release installation, not total import-to-save time or a controlled cold-start comparison.

One photo, two recorded processing modes

On a small screen, scroll the table sideways to see every column.

Physical iPhone 16 Pro · October 6 test record
Mode recorded	Input pixels	Output pixels	Recorded processing
Natural	3024 × 4032	3468 × 4625	12.43 seconds
Smooth	3024 × 4032	3468 × 4625	122.54 seconds

The recorded UI journey completed comparison and saving for both modes. Natural was available to inspect while Smooth continued. These are the mode names in that historical test; current tools, models and behavior can differ.

The output was about 16 megapixels. A large input does not always receive a full 4× enlargement: the app limits output size for memory safety. Check dimensions and print size first.

What the record can establish

A completed processing, comparison and save journey on a physical iPhone, with the recorded sizes and durations above.
A version-controlled engineering record whose original text was verified against a fixed source commit. The tested Release source was ef7a3c3.
An example from that device, input and test installation, rather than a forecast for every current release.

The original raw image/job archive is not included with this record. The public historical results JSON retains the test date, source identity, record hash and qualifications. No new benchmark was run to create this page.

Inspect visible examples before buying

Original cat-photo detail enlarged normally to the comparison size — Original, resized for comparison

Actual app-generated upscale of the same cat-photo detail — App-generated upscaled result

A detail from the existing 300 × 387 photo example, processed to 1200 × 1548 and displayed at matching size. These web images are presentation crops; they are separate from the historical phone timing input above.

Enlarge a small photo

Inspect the existing app-generated before-and-after comparisons at the same display size, with source and output dimensions.

View the photo examples

Check slight softness

Sharpen can give gently soft edges more contrast. It is not a guarantee of recovering heavy motion blur or unreadable text.

Read the sharpening workflow

Choose a useful next step

Print-size examples · Screenshot limits · Current app facts and requirements

Processing stays on your device. Local Photo Upscaler is $9.99 once in the U.S. App Store, with no subscription or in-app purchases. Check the current listing for price and compatibility. View Local Photo Upscaler on the App Store.