# Mastery

> Mastery helps you track time spent on skills on the journey to 10,000 hours.

Canonical page: [https://chrome-stats.com/d/ro.mb.mastery](https://chrome-stats.com/d/ro.mb.mastery)

## Overview

- **ID:** `ro.mb.mastery`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Mihail Burduja
- **Category:** PRODUCTIVITY
- **Downloads:** 152,351
- **Rating:** 4.13 / 5 (845 ratings)
- **Last updated:** 2017-07-19
- **First published:** 2015-09-05
- **Publisher country:** RO
- **Data as of:** 2026-09-16
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=ro.mb.mastery)
- **Privacy policy:** [https://burduja.me/content/mastery\_play\_store\_pp.html](https://burduja.me/content/mastery_play_store_pp.html)

## Description

In order to become a <b>Master</b> you must practice a skill for 10000 hours. <br><b>Mastery</b> tracks how much time you spend on developing your skills. This app allows to gamify your skill development and enhance productivity.<br><br>G+ community: https://goo.gl/TG4Yww<br><br><b>Tips and tricks</b><br>• The main screen of the app contains the activities that you created.<br>• The Skills menu item allows you to manage skills (create, view, edit, delete).<br>• The Categories menu item allows you to manage categories (create, view, edit, delete).<br>• The Trends menu item displays some neat charts.<br>• The Store menu item allows you to manage products / rewards (create, view, edit, delete).<br>• The Transactions menu item shows the expense / income coin transactions.<br>• There is one category created by default: General. You can edit it, and you can add more categories by pressing on the + button when on Categories page.<br>• Icons for skills, categories, and products are mandatory.<br>• You can add activity only when you have at least one skill defined.<br>• Store is for user-defined rewards (see explanation below).<br><br><b>Store</b><br>The use of the store is completely optional. The main aim of it, is to allow the user to define some rewards for time spent developing a skill.<br><br>Examples:<br>• Gaming - you can purchase an hour of gaming using X coins that you got from developing a skill.<br>• TV Shows- you can purchase an episode of TV Shows using X coins that you got from developing a skill.<br>The idea is to allow you to define rewards for your time spent developing useful skills.<br><br>More icon packs will be added in the future.<br>More <b>gamification</b> features are going to be added in the future (feel free to suggest them).<br><br><b>The free version allows you to have a maximum of 7 skills at a time</b>, everything else is not restricted.

## Rankings

- #182,111 — Overall

## Review summary

Mastery is praised for its simplicity, reliable time-based tracking, and icon-driven organization with no ads. Users love the data and motivation, but repeatedly warn about unreliable backups, no cloud sync, and a lack of updates. Feature gaps (export, trends, customization) and occasional stability issues further weigh on perception. Overall, strong concept and UX when working, but significant data-retention and development concerns.

### Pros

- Simple and intuitive to use for daily tracking
- Great focus on time spent with meaningful data and progress insights
- Icon visuals help distinguish between skills and improve organization
- Ad-free experience and upgrade is considered worth it
- Backup options exist (local backups and Google Drive) to retain data

### Cons

- Unreliable backups and restore process; users fear data loss and cannot trust the backup system
- App appears abandoned with no updates for years
- Lacks cloud syncing and easy cross-device backup/restore
- Limited/customizable icons; requests to upload own icons and more icon options
- Missing features like exporting data to Excel, trend analysis across all skills, and a home/overview page; occasional stability issues

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Source: [Chrome-Stats](https://chrome-stats.com/d/ro.mb.mastery)