FormMaster: A lightweight spreadsheet app with a one-time price

Ever get an .xlsx file on your phone, need to change one cell, and end up waiting for a full office suite to load? That kept happening to us, so we built FormMaster — mostly for ourselves, honestly.

It opens and edits real .xlsx, .xls and .csv files on Android, iOS, Windows and Mac. 20,000+ templates, PDF / CSV / image export, cloud sync with a recycle bin, and you can merge workbooks sheet by sheet instead of copy-pasting. The UI ships in 8 languages.

Free to start, with ads and a cap on saves. If you'd rather skip both, there's a one-time lifetime purchase — no subscription.

What it isn't: an Excel replacement. The built-in function set is small, about a dozen, and there are no charts, pivot tables or macros yet. No AI in the desktop app either — we didn't want to claim a feature that isn't there. Please review complex workbooks after import.

One question I'd genuinely like answered today: if you opened a work .xlsx in a small app like this, what's the first thing you'd check before trusting it? I'll be here all day.🙂

Free to start, with ads and a cap on saves. If you'd rather skip both, there's a one-time lifetime purchase — no subscription.

One question I'd genuinely like answered today: if you opened a work .xlsx in a small app like this, what's the first thing you'd check before trusting it? I'll be here all day.🙂