# MellowConvert Photo Formats — HEIC JPG PNG Batch Converter

> Batch photo converter for HEIC, JPG, PNG, and PDF formats. (iPhone/iPad app by ChanGyu Kang.)

- Source: https://appshunter.io/ios/app/mellowconvert-photo-formats/id6789106636 (this page in markdown: same URL + `.md`)
- Developer: [ChanGyu Kang](https://appshunter.io/developer/1869205578)
- Category: Photo & Video, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 8 MB
- Languages: American English, Dutch, French (France), German (Germany), Italian, Japanese, Korean, Polish, European Portuguese, Russian and 3 more
- Released: 2026-07-11
- Data updated: 2026-09-07
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/mellowconvert-photo-formats/id6789106636/reviews.md

## What is MellowConvert Photo Formats?

MellowConvert is a simple image converter that helps you turn photos from your library into the format you need.

Convert images to JPG, PNG, HEIC, or PDF. Select multiple photos at once, choose an output format, and save or share the converted results without a complicated editing workflow.

Use MellowConvert when you need to change photo formats for documents, sharing, archiving, or everyday image organization.

Key features

• Select images from your photo library
• Batch convert multiple images
• Convert to JPG, PNG, HEIC, or PDF
• Check conversion progress
• Save and share converted results
• View recent conversion history
• On-device image processing

MellowConvert keeps image conversion simple. Pick your photos, choose a format, convert, and save the result in just a few steps.

## Key features

- Batch convert multiple images
- Convert to JPG, PNG, HEIC, or PDF
- Select images from photo library
- Save and share converted results
- On-device image processing
- View conversion history

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/mellowconvert-photo-formats/id6789106636/reviews.md

### 5/5 — 감사합니다..

*2026-08-22*

감사합니다..
파일 변환을 늘 pc로 옮겨서 했는데..
너무 편해요. ^^

### 5/5 — 편하고 좋아요!

*2026-08-06*

원본 파일명 유지 기능을 껐을 때는 원하는 파일명으로 설정할 수 있으면 좋겠어요!

### 4/5 — 매우 간편합니다.

*2026-08-03*

총 네번의 터치로 변환 완료입니다. 화질저하없고 다수의 사진 선택후 변환도 가능합니다.

### 5/5 — 사용이 매우 간판

*2026-08-02*

아이폰 쓸때마다 사진이 jpg가 아니라 바로 업로드하는 불편함이 있었는데 직관적인 어플로 훨씬 사용이 편리합니다. 매우 추천합니다^^

## Frequently asked questions about MellowConvert Photo Formats

### What formats can MellowConvert convert to?

MellowConvert can convert your images to JPG, PNG, HEIC, or PDF formats. This allows for broad compatibility when sharing or archiving your photos.

### Can MellowConvert convert multiple photos at once?

Yes, MellowConvert supports batch conversion, allowing you to select multiple images from your library and convert them simultaneously. This feature significantly speeds up the process for large numbers of photos.

### Does MellowConvert process images on my device?

Yes, MellowConvert performs on-device image processing. This means your photos are converted locally on your iPhone, enhancing privacy and security as they are not uploaded to external servers.

### How does MellowConvert handle ads?

MellowConvert contains advertisements. While the app is free to download and use, you may encounter ads during your conversion process.

### What is the age rating for MellowConvert?

MellowConvert has an age rating of 4+. This indicates it is suitable for a wide range of users, including children, with no mature content.

### When was MellowConvert last updated?

The latest version of MellowConvert was released on August 23, 2026. This indicates the app is actively maintained by its developer.

### What devices does MellowConvert support?

MellowConvert is designed for iPhone devices. It is optimized to work seamlessly on the iOS platform.

### Does MellowConvert offer in-app purchases?

Yes, MellowConvert offers in-app purchases. These may provide additional features or remove advertisements, enhancing the user experience.

## Version history (last 4 releases)

### 1.0.3 — 2026-09-03

We’ve made MellowConvert faster and more reliable.

• Improved memory usage and performance when converting large images.
• Optimized PDF output for better file size and image quality.
• Improved saving multiple results to Photos, with retry support for failed items.
• Enhanced the reliability of conversion history and temporary file management.
• Photo permission changes are now reflected immediately when returning to the app.
• Improved the reliability of Pro purchases and restoration.
• Added update notifications when a new version is available.
• Refined localized text and fixed additional usability and stability issues.

### 1.0.2 — 2026-08-23

• Introducing MellowConvert Pro
Make a one-time purchase to remove all ads and selectively remove only the metadata you choose.

• More control over metadata
Selectively remove location, capture date and time, device and camera details, shooting settings, and author or copyright information.

• Improved Recent Conversions
Reopen recent conversion results with previews, save them to Files, share them, or delete individual records.

• Better PDF conversion
Added PDF previews and clearer page-count information when combining multiple images into one PDF. Image orientation and PDF conversion reliability have also been improved.

• Improved color-space handling, conversion quality, performance, and stability when processing large images and multiple files.

• Additional UI refinements and bug fixes.

### 1.0.1 — 2026-07-26

• Save PDF and WEBP conversion results directly to the Files app.
• Export multiple converted files at once.
• Improved PDF page sizing and output quality.
• Improved the flow for cancelling, retrying, reviewing results, and starting a new conversion.
• Fixed issues with long filenames and filenames containing emoji.
• Improved conversion stability and history storage.

### 1.0 — 2026-07-11

No release notes.

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## More apps by ChanGyu Kang

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- [Film Camera Filter MellowFilm](https://appshunter.io/ios/app/film-camera-filter-mellowfilm/id6762510830)
- [NumberOrder: Tap Puzzle](https://appshunter.io/ios/app/numberorder-tap-puzzle/id6763839987)
- [MellowDay Daily Vlog Diary](https://appshunter.io/ios/app/mellowday-daily-vlog-diary/id6766222900)

All apps by ChanGyu Kang: https://appshunter.io/developer/1869205578

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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 2026-09-07.*