Vertible: File Converter

Vertible converts files and measurements on your phone. Photos, audio, video and PDFs are converted by the phone itself: no file is uploaded, nothing waits on a server, and it works in airplane mode.

One payment, no subscription. The free version does real work, with its few limits stated on the screen where they apply. Vertible Pro is one in-app purchase that removes them, and it never becomes a subscription.

Units and files in one app. One screen, the Bench, turns a HEIC photo into a JPEG, a video into an MP3 and miles into kilometers, with the same controls and one history.

FILES
- Images: JPEG, PNG, WebP, GIF, BMP, TIFF, PSD and TGA in, plus HEIC and SVG where the phone supports them; JPEG, PNG, WebP, GIF, TIFF and BMP out, and AVIF with Pro on phones that can write it. Resize, crop, compress to a size you name, strip location data
- Audio: MP3, AAC, WAV, AIFF, FLAC, Opus and Ogg Vorbis in and out, plus AMR voice recordings in. Trim, set bitrate and sample rate
- Video: MP4, MOV, 3GP, WebM, AVI, MKV and FLV in; MP4 and 3GP out. Trim, compress, extract the soundtrack
- Archives: RAR, 7z, TAR, GZ, BZ2 and XZ to ZIP; comic books (CBZ, CBR, CB7, CBT) to PDF
- PDF: images to PDF and back. Pro adds merge, split, rotate, compress, text to PDF, and PDF to text
What matters in a video is the codec inside it. If this phone has no decoder for it, Vertible names it.

UNITS AND NUMBERS
- Length, mass, volume, area, speed, temperature, pressure, energy, power, data size, angle, time and fuel economy
- Cooking volumes, clothing sizes and shoe sizes
- Number bases, color codes, timestamps, CSV, JSON and YAML, Base64, hashes and Roman numerals
Currency is the one thing that needs a connection: Vertible keeps the last rate table it downloaded, uses it offline and shows its date.

IT TELLS YOU WHAT IT CAN'T DO
On first launch Vertible measures which conversions this phone can run, and the Capability Sheet lists them. A conversion the phone can't do is never offered: it is shown as unavailable, with the reason.

AROUND THE PHONE
- Share a photo, video or file to Vertible from any app and convert it without leaving that app
- Converted files appear in the Files app, under Vertible
- A Quick Settings tile that opens the Bench with the file picker ready
- The Recipes widget (Pro) starts a saved conversion from the home screen

FREE AND PRO
Free: every unit and number tool without limits; batches of 3 images; 3 audio, 3 video and 3 archive conversions a day, video up to 2 minutes; 3 saved recipes. A banner on the Bench, and at most one full-screen ad a day, after a batch of 3 or more.
Pro: no limits, no ads, every document tool, video to GIF, frame extraction, video resizing, unlimited recipes and the Recipes widget.

No account, no sign-in, no analytics of our own. Your files, history and recipes stay on the phone.