# Keystone Photo Lab — Tilt-shift lens & perspective

> AI-powered photo editor for perspective correction, generative fill, and expansion. (iPhone/iPad app by MYKOLA KINDRATYSHYN.)

- Source: https://appshunter.io/ios/app/keystone-photo-lab/id6759060598 (this page in markdown: same URL + `.md`)
- Developer: [MYKOLA KINDRATYSHYN](https://appshunter.io/developer/1876605049)
- Category: Photo & Video, Graphics & Design
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 27 MB
- Languages: American English
- Released: 2026-08-11
- Data updated: 2026-09-21
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/keystone-photo-lab/id6759060598/reviews.md

## What is Keystone Photo Lab?

Simple but powerful tool to fix perspective distortions, AI corner fill, generative expand, upscale and deliver results in full resolution, P3 color and native HDR.

PERSPECTIVE & KEYSTONE CORRECTION
Straighten converging verticals and fix keystone distortion in architecture, real-estate, and street photos. Tilt, rotate, and warp until every line is true.

AI CORNER FILL — AT FULL RESOLUTION
Correcting perspective leaves empty corners. Keystone fills them with generative AI at your photo's full resolution — no downscaling, no soft edges, no visible seams. Most apps fill at a fraction of the size; this one doesn't.

GENERATIVE EXPAND
Extend the frame beyond its edges — add sky, foreground, or breathing room with AI that matches your scene.

UPSCALE & RECREATE
Boost resolution and detail, or let AI recreate a cleaner version of your shot.

TRUE COLOR — DISPLAY P3 + HDR
Unlike editors that flatten everything to sRGB, Keystone preserves your photo's Display P3 wide-gamut color and HDR gain map end to end — so edits stay as vivid as the original on your iPhone's screen.

KEEPS YOUR ORIGINALS INTACT
Native HEIC/HEIF in and out, EXIF and location metadata preserved, saved in the same format to conserve space.

Simple, fast, private:
• No account required — start editing instantly
• Photos processed at full quality
• Latest cutting-edge AI models

Download Keystone Photo Studio and make every photo look like it was shot with a tilt-shift lens.

Keystone Photo Studio offers optional auto-renewable subscriptions for additional monthly AI credits. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless turned off at least 24 hours before the end of the current period; manage or cancel anytime in your Apple Account settings.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://vlodkodesign.com/keystone/privacy.html

## Key features

- Perspective and keystone correction
- AI corner fill
- Generative expand
- Upscale and recreate images
- Preserves Display P3 color and HDR
- Maintains original metadata


## Frequently asked questions about Keystone Photo Lab

### What is Keystone Photo Studio?

Keystone Photo Studio is a photo editing application that specializes in correcting perspective distortions and using AI for image expansion and content generation. It aims to make photos look as if they were shot with a tilt-shift lens.

### How does Keystone Photo Studio handle perspective correction?

It allows users to straighten converging verticals and fix keystone distortion in photos, particularly useful for architecture and real-estate shots. Users can tilt, rotate, and warp images until lines appear true.

### What is AI Corner Fill in Keystone Photo Studio?

When perspective correction creates empty corners, Keystone Photo Studio uses generative AI to fill these spaces at the photo's full resolution. This ensures no downscaling, soft edges, or visible seams.

### Can Keystone Photo Studio extend the boundaries of a photo?

Yes, the Generative Expand feature allows users to extend the frame beyond its original edges. AI can add sky, foreground, or breathing room that matches the existing scene.

### Does Keystone Photo Studio preserve original photo quality and color?

Yes, it processes photos at full quality and preserves Display P3 wide-gamut color and HDR gain map end to end. It also saves in native HEIC/HEIF format, retaining EXIF and location metadata.

### Is Keystone Photo Studio free to use?

Keystone Photo Studio is available for free. It offers optional auto-renewable subscriptions for additional monthly AI credits, which are charged to your Apple Account upon purchase.

### Does Keystone Photo Studio have ads?

No, Keystone Photo Studio does not contain advertisements. The app is designed to be simple, fast, and private, with no account required to start editing.

### What devices is Keystone Photo Studio compatible with?

Keystone Photo Studio is supported on iPhone and iPod devices. It is rated for ages 4 and up.

## Version history (last 5 releases)

### 1.3 — 2026-09-20

New in Adjust
• White Balance: one tap to neutralize a color cast, with a dial to ease it back. Long-press for an eyedropper and pick the exact spot that should be neutral.
• Color-targeted Saturation: long-press Saturation to isolate one color, or to change everything except it.
• Zoom in to inspect and the view stays put while you switch tools.

Also new
• 10 free AI edits for new users, up from 5.
• A warning before leaving the editor would discard your changes.
• Refined look for menus, sheets and messages throughout the app.
• The contact form stays clear of the keyboard.
• Fixes for users who were missing their free AI edits.

### 1.2.1 — 2026-09-14

• Fine-tune the crop on the final screen: pinch and pan, and that framing is what gets saved
• Batch editing: mark photos for AI corner fill and fill them all in one step
• Auto colour now carries Apple's own Auto Enhance for a natural, punchy look
• Upgrading your plan, or switching to yearly, now takes effect immediately with a full credit refill
• Fixes for crops not carrying into Keystone and Adjust, and for the save button's "as new" switch

### 1.2 — 2026-09-07

Keystone Photo Studio is now Keystone Photo Lab.

• Batch editing: fix perspective, crop and colour across up to 30 photos at once, review each one, and save them all in a single step
• AI corner fill for a whole batch in one tap
• Auto colour now carries Apple's own Auto Enhance for natural, punchy results
• Saves keep HDR, location and lens information
• Full-bleed view while adjusting the crop frame

### 1.1.1 — 2026-08-27

• More reliable subscription upgrades — changing plans no longer shows a false "purchase failed" message.
• Smoother transitions when switching between the Keystone, Adjust, and Recreate tabs.
• Clearer message when a purchase can't reach the network.
• Refined the account panel — swipe down to dismiss.

### 1.1 — 2026-08-19

iPad support. Keystone Studio now runs on iPad in all four orientations, with the image preview scaled to the larger screen instead of the phone layout.

Fixes a bug where a photo taller than the preview area could overflow and cover the Save button on the results screen.

Adds a back arrow to the Recreate and Upscale result screens, so you can return to your original input instead of only editing the result again.

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## More apps by MYKOLA KINDRATYSHYN

- [Sandbox AI Studio: Photo Art](https://appshunter.io/ios/app/sandbox-ai-studio-photo-art/id6784489178)
- [Glowroom](https://appshunter.io/ios/app/glowroom/id6790873358)

All apps by MYKOLA KINDRATYSHYN: https://appshunter.io/developer/1876605049

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-21.*