Independent app studio

Small, careful apps
for Mac, iPhone, and iPad.

Warmth engineered with precision. Every manthaApps release is one focused tool that does its job properly — quick to open, easy to keep, and yours alone: your data stays on your devices and in your own iCloud.

On the way

Diffivo app icon

Diffivo

Mac · macOS 14 or later

Available Soon

See exactly what changed between two CSV files.

Diffivo puts two files side by side and shows you every row and cell that changed — added, removed, edited — in a view you can filter and search instead of squinting at raw text.

  • Matches rows by what identifies them, so a re-sorted file still lines up
  • Works out the format for you — most files just open
  • Stays smooth even at a hundred thousand rows
  • Hand off a report as HTML, CSV, or PDF, in any of 20 languages
Diffivo in detail
Pourivo app icon

Pourivo

iPhone & iPad

Coming in September

Every pour, remembered.

A cocktail diary. Log the drinks you make — the recipe, the actual bottles you poured, a rating and a photo — and build a personal history worth mining. Plenty of apps store recipes; here the diary is the point.

  • 100 bundled classics with hand-drawn drink art, plus a full editor
  • My Bar — the real bottles on your shelf, with fill-level gauges
  • “What can I make tonight?” from the bottles you actually have
  • No account to create, no tracking — it all stays in your iCloud
Pourivo in detail

The studio

The name is simple: mantha is short for Samantha, my daughter. That's the whole story — there's nothing clever behind it.

The work follows the same instinct. Each app is deliberately small in scope and unhurried in the making: built for the machine it runs on, designed around one job, and finished rather than merely shipped.

  • At home on your Mac and iPhone

    Built for the platform it runs on, so it feels the way you expect.

  • Your data stays yours

    It syncs through your own iCloud. There's no account to create and no server of ours in between.

  • One job, done properly

    Focused tools that stay quick to open and easy to keep.

Get in touch

Questions, ideas, or interested in testing a beta? Email is the best way to reach the studio.

chris@manthaapps.com