Kompressor vs AperTrace
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kompressor
Convert RAW photos from your iPhone or DSLR into compressed JPEG or HEIC formats. Maintain control over quality, size, and metadata with flexible compression and resizing options. All processing is done offline on your device for complete privacy.
- RAW to JPEG/HEIC conversion
- Adjustable compression levels
- Flexible image resizing
- Metadata preservation and control
- Batch conversion up to 25 images
- 100% offline processing
- Preview converted images
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Kompressor (a compressor with a K!) is a powerful yet simple image converter for your iPhone and iPad. Convert your photos — RAW files from your iPhone or DSLR camera*, or standard lossy images already in your library — into compressed JPEG or HEIC formats while maintaining control over quality, size, and metadata. REQUIREMENT: You need existing photos in your Photo Library to convert. Kompressor does not capture photos — it converts the image files you already have. KEY FEATURES: Convert up to 25 images at once Support for both RAW and standard (JPEG, HEIC, PNG) input formats Support for JPEG and HEIC output formats Adjustable compression levels (50%, 75%, 95%) Flexible image resizing options Complete control over metadata preservation Detailed metadata options including EXIF, GPS, TIFF, and more Device-specific metadata support (Apple, Canon, Nikon, Fuji, Olympus, Pentax, Minolta) Comprehensive compression statistics and charts Preview converted images before saving Clean, intuitive interface 100% offline processing - no data collection Support for iPhone, iPhone Duo, and iPad METADATA CONTROL: Kompressor gives you granular control over which metadata to preserve: Image Depth & Orientation EXIF, GPS, and TIFF metadata IPTC information Camera manufacturer-specific data DNG metadata Custom creation date options COMPRESSION OPTIONS: Choose from three quality levels: 50% - Maximum compression for space savings 75% - Balanced quality and size 95% - Near-original quality with significant size reduction RESIZING OPTIONS: Reduce image dimensions while maintaining aspect ratio: 50% - Half the original size 75% - Three-quarters of original size 100% - Keep original dimensions PRIVACY FIRST: All processing happens directly on your device. No analytics, no tracking, no cloud processing. Your photos stay completely private. PERFORMANCE: Optimized for modern iOS devices with support for the latest iPhone and iPad models, including adaptive layout for iPhone Duo. The app limits batch conversions to 25 images to ensure optimal performance. Perfect for photographers who want to: Free up storage space by converting RAW or JPEG files Re-compress existing photos to smaller sizes Share photos in more compatible formats Control file sizes for uploads Manage photo metadata Convert images without complex desktop software Made with love in Toronto * Digital Negative (DNG) file Note: Photo library access is required to convert images.
AperTrace
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• Free from Sep 2 through Dec 31. Regular pricing returns Jan 1. Give it a try and let me know what you think! • If you have any suggestions or ideas while using AperTrace, feel free to contact me at zykzzzz@hotmail.com. • AperTrace is a photo watermarking app designed for photography enthusiasts. After you import a photo, it automatically reads details such as the camera, lens, focal length, aperture, shutter speed, and ISO, then presents them in a clean, thoughtfully designed watermark. • Choose from seven styles to complement your photos: Classic, Polaroid, Minimal, Editorial, Film 35, Side Label, and Magazine. Whether it’s a street snapshot, a travel memory, or a carefully curated photo series, there’s a layout to suit it. • Turn camera settings from numbers hidden in EXIF data into part of the photograph itself.
Screenshots
Verdict
The clearest difference is price: AperTrace at Free against Kompressor's $2.99. AperTrace also leads on update cadence (every 8 days vs every 2 months) and iOS requirement (16.0 vs 18.0). Kompressor's advantage is chart position (#178 vs unranked). On 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
AperTrace is free to download; Kompressor costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Kompressor ships an update every 2 months, AperTrace every 8 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.
| Parameter | Kompressor | AperTrace |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.8 (28 ratings) — better | — |
| Positive reviews | 57.1% of reviews | — |
| Number of ratings | 28 — better | — |
| Update frequency | Every 2 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Best chart rank | #178 — better | — |
| Devices | iPhone, iPad | iPhone, Mac |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Maysoft Inc. | 业坤 张 |
In-app purchases
Kompressor
No in-app purchases
AperTrace
No in-app purchases








