# Kompressor - Compress images — RAW Image Converter

> RAW image converter for iPhone and iPad with quality, size, and metadata control. (iPhone/iPad app by Maysoft Inc..)

- Source: https://appshunter.io/ios/app/kompressor-compress-images/id1011979611 (this page in markdown: same URL + `.md`)
- Developer: [Maysoft Inc.](https://appshunter.io/developer/1008067211)
- Category: Photo & Video, Productivity
- Price: $2.99
- Rating: 3.80/5 from 28 App Store ratings · 15 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 2 MB
- Languages: American English, French (France), German (Germany), European Spanish
- Released: 2015-07-03
- Data updated: 2026-07-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/kompressor-compress-images/id1011979611/reviews.md

## What is Kompressor?

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 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. 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.

## Key features

- 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

## Recent user reviews (10 of 15)

All indexed reviews: https://appshunter.io/ios/app/kompressor-compress-images/id1011979611/reviews.md

### 1/5 — Stopped working

*2026-01-20*

Used to be great, but stopped working with the major update. Now it always shows me the same small selection of photos, no matter how many I give it permission to access.

**Developer response:** In that case delete it and reinstall. It will fix the problem

### 1/5 — Rebuilt App removes old functionality entirely

*2026-01-15*

I loved the old Kompressor app because it let me compress any image. The new app only allows RAW compression. Some of my HEIC images might be 3MB and before I could easily bulk shrink them to under 1MB. This is now impossible.

**Developer response:** I’m sorry that you are disappointed, i’ll try to add that back in a future release.

### 5/5 — Excellent app!

*2022-07-21*

I’ve had this app for several years and it works great!  Does exactly what it says it does. Even after compressing and then making changes to photo, you can compress again. It May not be much but every little bit helps!!  It’s never bugged out or glitched on me. Very reliable!! Thank you!!!

### 5/5 — Really Convinient

*2021-10-04*

No ads or anything, no sign up, just straight up decompression. I wish you could decompress videos though.

### 4/5 — Video compressor

*2020-03-18*

Hi i need one apps same with this kompressor but fir video to save and replace my recorded video

### 5/5 — آفرین

*2019-10-20*

ادم لذت میبره از یه همچین کارایی 
خدا قوت رفیق

### 4/5 — Good first try

*2019-05-29*

I kinda like it, it addresses an important need.  Changes I would like is to make the compression function stand-alone, I don't want or need yet another filter generator, there are hundreds of filter apps already.  Also would like a variable slider not just 3 presets. Finally (and this is the dealbreaker) PLEASE add a "save-as" or "save-copy" so it doesn't replace my original with a compressed version.  That ruins it for me.

**Developer response:** Hello, I will add a new option to do this in the next update.

### 5/5 — Works well!!

*2019-05-29*

Just tried this, works well, dropped a portrait from 3MB to 1.5MB with Max compression, picture still looks good so it’s a handy addition if you need it.

### 1/5 — Doesn’t work

*2019-05-29*

After installing then deleting, twice the same thing happens on the iPad Pro. 2 screens FLASH back and forth without being able to sit up the application, much less the app show in the app list. Doesn’t appear anywhere on the iPad Pro. What gives?

**Developer response:** Sorry for the inconvenience, can you send me a video recording of what happens when you try to open the extension? maysam.shahsavari@gmail.com is my email address.

### 5/5 — Very Impressed!

*2019-04-30*

This app does exactly what it says, with no loss in image quality.  I routinely process/edit 15-24mp DSLR images on my iPad Pro. I took a 16.2 mp image that weighed in at 7.8mb and “Kompressed” it at the highest setting to 1.3MB, still retaining the 16.2mp image resolution.  Since this app works as an extension, I copied the Kompressed image, then Reverted the original back to its un-Kompressed state. I then loaded them both into TwinViewer and zoomed in to 400% and could not tell the difference in the two images. Absolutely no change in resolution, no artifacts, nothing different.  I use JPEGMini on my PC and it delivers similar results, this is truly a breakthru for iOS users. I am suitably impressed.

Recommended improvements to the app would include running as a standalone app that could batch process a bunch of images. As an extension, it would be nice if there was a Copy function/option so you could duplicate the Kompressed image without having to use a different extension app.

**Developer response:** Having happy customers is the most important thing for me. Thanks for your recommendations, I'll consider them for the next update.

## Frequently asked questions about Kompressor

### What is Kompressor used for?

Kompressor is used to convert RAW image files from your iPhone or DSLR camera into compressed JPEG or HEIC formats. It allows you to control quality, size, and preserve metadata, all processed offline on your device.

### Does Kompressor capture photos?

No, Kompressor does not capture photos. It requires you to have existing RAW photos in your device's Photo Library to convert. It focuses solely on the conversion process.

### What compression levels does Kompressor offer?

Kompressor offers three compression levels: 50% for maximum space savings, 75% for a balance of quality and size, and 95% for near-original quality with significant size reduction.

### Can I resize images with Kompressor?

Yes, Kompressor allows flexible image resizing while maintaining the aspect ratio. You can choose to reduce dimensions to 50%, 75%, or keep original dimensions (100%).

### How does Kompressor handle metadata?

Kompressor provides granular control over metadata preservation, including EXIF, GPS, TIFF, IPTC, and camera manufacturer-specific data. You can choose exactly which metadata to keep or remove.

### Is Kompressor available on Android?

Kompressor is currently available for iPhone and iPad, supporting modern iOS devices. It is optimized for the iOS platform and its features.

### How much does Kompressor cost?

Kompressor is a paid app priced at $1.99. This one-time purchase grants you access to all its features for converting and compressing your RAW images.

### Does Kompressor have ads?

No, Kompressor is ad-free. As a paid application, it provides an uninterrupted user experience without any advertisements.

## Version history (last 5 releases)

### 4.2 — 2026-05-19

New in this version:

- When picking standard photos, choose an album to filter your library and find images faster.
- General performance improvements.
- Improved button accessibility.

### 4.1.2 — 2026-05-18

New in this version:

- Fixed a visual glitch on the Settings screen.

### 4.1.1 — 2026-04-20

New in this version:

- Tap and hold any picture preview cell to open the full-size image.
- On the Results screen, you can now tap and hold individual images to share them quickly. A share option will appear in the top-right corner.

### 4.1 — 2026-04-14

Now supports converting standard images (JPEG, HEIC, PNG) in addition to RAW files. Re-compress existing photos to reduce file sizes or convert to more compatible formats.

### 4.0.1 — 2026-04-03

- Fixed an issue where the post-conversion state was not reset when starting over.

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All apps by Maysoft Inc.: https://appshunter.io/developer/1008067211

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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 2026-07-24.*