A useful app.
For the thing you need.

Audio Compressor MP3 Converter

Compress MP3 and audio files to save iPhone storage.

PDF Compressor: Sign & Merge

PDF Compressor is a practical PDF compression and document toolkit for iPhone.

PDF Watermark & Stamp

Just PDF Watermark is a focused iPhone app for adding text watermarks to PDF files before you send, upload, or store copies.

Video Compressor & MP4 Convert

Video Compressor helps you turn large iPhone videos into smaller, more compatible MP4, HEVC, or MOV exports - and turn short clips into looping GIFs that play anywhere.

Combine Photos: Stitch & Grid

Select 2–30 photos or screenshots and combine them into one JPEG/PNG image.

VideoFix: HDR Video Converter

Convert HEVC (H.265) video to H.264 in an MP4 file, including HEVC video that is already SDR. Choose “Convert HDR to SDR” for this compatibility conversion. HDR input is converted to standard Rec.709 SDR color. Conversion re-encodes the video; your original stays untouched.

PhotoFix: HDR Photo Converter

Convert HDR photos to SDR, export HEIC as JPEG and process photos in batches on your iPhone.

Coming after App Store review.

GlowPop: Selfie Glow Camera

GlowPop turns your screen into a glow camera for selfies in the dark. Pick a color, brighten your face, and shoot photos or videos without extra gear.

Y2K Cam: CCD Digital Camera

Turn your iPhone into a Y2K pocket digicam.

Homebrew Calculator: Brew Day

Fix off-target gravity, build unlimited homebrew recipes, run multiple brew timers and track every batch from prep to package — entirely offline.

Dying Soon: Screen Time Limit

Use app limits, blocking schedules and a life grid to make time for what matters.

Subtitle Maker: Just Captions

Create and edit video subtitles, style captions, and export for social video. Explore the dedicated Just Captions website.