diff --git a/README.md b/README.md
index 980e572..4ee9dcc 100644
--- a/README.md
+++ b/README.md
@@ -32,11 +32,11 @@ If you prefer an email, contact me at `toolleeo@gmail.com`.
 
 # Summary
 
-To date, **785** apps/tools covered, divided in **43** categories.
+To date, **786** apps/tools covered, divided in **43** categories.
 
 # Index
 
-[Backup](#backup) (8) | [Calculators](#calc) (8) | [Chat and instant messaging](#chat) (11) | [Conversion](#conversion) (7) | [Data management](#data-management) (36) | [Data transfer](#transfer) (34) | [Directory changers](#cd) (13) | [Disk usage analyzers](#disk-analyzer) (10) | [Editors](#editors) (21) | [Email](#email) (10) | [File and file system handling](#file-handling) (39) | [File manager](#file-manager) (11) | [File renamers](#file-renamer) (8) | [File systems](#file-system) (4) | [Font management](#font) (2) | [Funny tools](#funny) (19) | [Games](#games) (36) | [Git and accessories](#git) (30) | [Graphics](#graphics) (24) | [Multimedia](#multimedia) (4) | [Networking](#networking) (20) | [Note taking](#note-taking) (15) | [Office tools](#office) (16) | [Organizers and calendars](#organizers) (14) | [Online search and resources](#online) (10) | [Password managers](#password-manager) (11) | [Productivity](#productivity) (33) | [Programming](#programming) (32) | [Science](#science) (9) | [Security and encryption](#security) (15) | [Shells](#shells) (6) | [Sound and music](#music) (24) | [System monitoring](#monitor) (27) | [System tools](#system) (29) | [Terminals](#terminal) (9) | [Text processing](#text-processing) (43) | [Text search](#text-search) (9) | [Todo managers](#todo-manager) (19) | [Utilities](#utility) (39) | [Versioning](#versioning) (6) | [Viewers](#viewers) (27) | [Web browser](#browser) (16) | [Web development](#webdev) (21)
+[Backup](#backup) (8) | [Calculators](#calc) (8) | [Chat and instant messaging](#chat) (11) | [Conversion](#conversion) (7) | [Data management](#data-management) (36) | [Data transfer](#transfer) (34) | [Directory changers](#cd) (13) | [Disk usage analyzers](#disk-analyzer) (10) | [Editors](#editors) (21) | [Email](#email) (10) | [File and file system handling](#file-handling) (39) | [File manager](#file-manager) (11) | [File renamers](#file-renamer) (8) | [File systems](#file-system) (4) | [Font management](#font) (2) | [Funny tools](#funny) (19) | [Games](#games) (36) | [Git and accessories](#git) (30) | [Graphics](#graphics) (24) | [Multimedia](#multimedia) (4) | [Networking](#networking) (20) | [Note taking](#note-taking) (15) | [Office tools](#office) (16) | [Organizers and calendars](#organizers) (14) | [Online search and resources](#online) (10) | [Password managers](#password-manager) (11) | [Productivity](#productivity) (34) | [Programming](#programming) (32) | [Science](#science) (9) | [Security and encryption](#security) (15) | [Shells](#shells) (6) | [Sound and music](#music) (24) | [System monitoring](#monitor) (27) | [System tools](#system) (29) | [Terminals](#terminal) (9) | [Text processing](#text-processing) (43) | [Text search](#text-search) (9) | [Todo managers](#todo-manager) (19) | [Utilities](#utility) (39) | [Versioning](#versioning) (6) | [Viewers](#viewers) (27) | [Web browser](#browser) (16) | [Web development](#webdev) (21)
 
 Some links to [related resources](#resources).
 
@@ -578,6 +578,7 @@ Calendar managers.
 * [h-m-m](https://github.com/nadrad/h-m-m) - h-m-m (pronounced like the interjection "hmm") is a simple, fast, keyboard-centric terminal-based tool for working with mind maps.
 * [habitctl](https://github.com/blinry/habitctl) - Minimalist command line tool you can use to track and examine your habits.
 * [habitmap](https://github.com/shuu-wasseo/habitmap) - A command-line app to track your habits and visualise how committed you are to making or maintaining them with colorful heatmaps.
+* [hardv](https://github.com/dongyx/hardv) - A CLI flashcard app for UNIX-compatible systems, conforming to the UNIX philosophy.
 * [hledger](https://github.com/simonmichael/hledger) - A is fast, reliable, free, multicurrency double-entry accounting software to track money, investments, cryptocurrencies, time, or any other quantifiable commodity; uses a future-proof plain text file format.
 * [ledger](https://github.com/ledger/ledger) - A powerful, double-entry accounting system from the command-line; it uses a simple yet powerful text syntax to specify the items to account.
 * [moeda](https://github.com/thompsonemerson/moeda) - A foreign exchange rates and currency conversion using the command line.
diff --git a/data/apps.csv b/data/apps.csv
index d51fa58..d91791f 100644
--- a/data/apps.csv
+++ b/data/apps.csv
@@ -784,3 +784,4 @@ productivity,habitmap,,https://github.com/shuu-wasseo/habitmap,A command-line ap
 utility,sauce,,https://github.com/cadecuddy/sauce,A novelty CLI tool that identifies an anime from an image and yields key data about it.
 data-management,Soul,,https://github.com/thevahidal/soul,A SQLite REST and realtime server.
 disk-analyzer,Dust,,https://github.com/bootandy/dust,A more intuitive version of du in rust.
+productivity,hardv,,https://github.com/dongyx/hardv,"A CLI flashcard app for UNIX-compatible systems, conforming to the UNIX philosophy."