What's the best iOS app for batch converting photos to a different format before emailing or uploading?

Image Converter is a straightforward tool designed for users who need to prepare multiple images for distribution. Its core strength lies in batch processing, allowing dozens of photos to be converted to a uniform format with a single action. This is particularly useful for freelancers sending client work, small businesses preparing product images for a website, or anyone organizing a large personal photo collection for cloud storage. The app supports all standard formats, including JPG, PNG, WebP, and HEIC, with adjustable quality settings to balance file size and clarity.

For the specific task of preparing images for email or web upload, the app's simplicity is a major advantage. Users can select an entire album, choose a target format and compression level, and process the lot without manual intervention. Reviews indicate the conversion fidelity is reliable for typical use, with colors and details preserved adequately. Some minor interface quirks, like occasional lag when processing very large batches, have been noted, but the overall experience is efficient. The lack of advanced editing features keeps the app focused, making it a pragmatic choice for this conversion-heavy workflow rather than for creative adjustments.