Image Size PRO vs Slim Album
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Image Size PRO
Easily resize photos to your desired dimensions using various units like pixels, millimeters, centimeters, or inches. Preserve aspect ratio and crop images with intuitive gestures. Save, email, print, or share your resized creations.
- Resize images to custom dimensions
- Support for pixels, millimeters, centimeters, inches
- Preserve aspect ratio with chain icon
- Crop images with multitouch gestures
- Save, email, print, or share resized images
- Ad-free and no in-app purchases
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This is a PRO version for business customers. Without advertising and without in-app-purchases. This app allows you to resize an image to whatever size you like (with limitation), quickly and easily. You can specify the output format using one of the following four units of measurement: pixels, millimeters, centimeters, inches To preserve aspect ratio just tap on the chain icon between width and height input fields. This app gives you the option of saving, emailing, printing or sharing the final image. Resize your image in just four easy steps: - Open an image or take a photo - Enter your desired output size - Crop the image with your fingers using multitouch gestures - Save / print / send / share image
Slim Album
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Clean up similar photos in your album and free up storage. Key Features 1) AI-powered auto grouping of duplicate & similar photos 2) Clean, date-based photo organizing layout 3) UI inspired by Apple Photos on iOS
Screenshots
Verdict
The clearest difference is price: Slim Album at Free against Image Size PRO's $59.99. Slim Album also leads on iOS requirement (16.0 vs 18.0). On update cadence, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Slim Album is free to download; Image Size PRO costs $59.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Image Size PRO ships an update fortnightly, Slim Album every 2 weeks. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.
| Parameter | Image Size PRO | Slim Album |
|---|---|---|
| Price | $59.99 | Free — better |
| Rating | 4.7 (57 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 57 — better | — |
| Update frequency | Fortnightly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 125 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Vitalij Schaefer | sangsu lee |
In-app purchases
Image Size PRO
No in-app purchases
Slim Album
No in-app purchases
