Your files don’t need a cloud.

Olbo is eight tools for documents, spreadsheets, slides, PDFs, pictures, JSON, redaction and conversion, all of which run on your phone or tablet. Nothing you open is uploaded. Once installed, the tools work with no connection: you need one only to download a spelling language or to buy or restore Pro. There is no account and there are no ads.

Docs
Edit a Word document or write something new, with headings, lists, tables, pictures, and find and replace. Spelling is checked in English or in one language you download. Saves as Word, Markdown, HTML or plain text.

Sheets
Open an Excel workbook or a CSV in a real grid. Sort, filter, find and use formulas, and let Tidy remove blank rows, stray spaces and duplicates. Saves as Excel, CSV or JSON.

Slides
Open a PowerPoint file, or start one in any of ten themes. Edit its text, tables, shapes and pictures, rearrange the slides and write speaker notes, then present it. Saves as PowerPoint, PDF or pictures.

PDF
Merge and split PDFs, and extract, delete, rotate and reorder pages. Tap a line of text printed in a PDF and type over it. Add photos and they become pages.

Pictures
Crop, straighten, resize and adjust the colour of a photo. Saving strips the camera model, the time and the GPS location from it.

Redactor
Finds emails, phone numbers, US Social Security numbers, card numbers, bank details, ID numbers, postal addresses and dates of birth, plus API keys, access tokens and IP addresses. Names and web addresses start switched off: tick them to look for those too. You can cover anything it missed yourself. A redacted PDF is saved as pictures of its pages with the boxes burnt in, so the covered words are gone.

JSON
Open or paste JSON. It shows where it will not parse, draws a big file as a tree, gives the path to any value and turns a list of objects into a CSV.

Converter
Pictures become JPEG, PNG, WebP, GIF, BMP, TIFF, ICO or PDF. A PDF becomes Word, Markdown, HTML, text or pictures. Word, Markdown, HTML and text files become one another or a PDF, a PowerPoint file a PDF or pictures, and spreadsheets go between Excel, CSV, TSV and JSON.

Free and Pro
Free opens and saves files up to 2 MB each, in all eight tools, and converts one file at a time.

Pro opens and saves files up to 50 MB each on a phone or tablet, and converts several at once. It is a one-time purchase through Google Play, not a subscription, and the licence never expires. The app turns Pro on and shows your licence key, and a copy is emailed to the address you give. The same key works in Olbo on a computer too, where Pro has no size limit.

After a reinstall, Pro usually comes back by itself. If not, press Upgrade, then Restore Google Play purchase, or paste the key from your email.

Privacy
Apart from Google Play, which handles buying Pro, the app sends only two things off the device:
- the download of a spelling language you choose, which carries nothing from your files
- when you buy or restore Pro, your email address and Google Play's purchase token, so the purchase can be checked with Google and your key sent to you. After a reinstall it sends the token by itself, to bring Pro back.
A pasted key is checked on the device and sends nothing.

The app keeps a copy of your work in progress, so closing it by accident costs nothing, except in the Converter, and in the Redactor with a PDF, which keep nothing. That copy, your key and your settings stay in the app and are left out of the phone's backups. The bin in the top bar deletes the copies.