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Apps that
do one thing well.

Free, fast, and built to stay out of your way.

OneInsta app icon
Web tool · OneInsta

Save Instagram Reels & photos

Paste a link, get the video. No app or sign-in needed.

OneTok app icon
Web tool · OneTok

Save TikTok videos without the watermark

Paste a link, get the clean video. No app or sign-in needed.

OneFb app icon
Web tool · OneFb

Save Facebook videos & Reels

Paste a link, get the video. No app or sign-in needed.

OneTube app icon
Web tool · OneTube

Save YouTube videos, Shorts & audio

Pick a video track, a ready-to-play file or just the audio.

Scapture app icon
Web tool · Scapture

Beautify your screenshots

Add a gradient, padding and a shadow, then download a clean PNG.

OneToss app icon
Web tool · OneToss

Flip a coin, heads or tails

A true 50/50 flip with a running tally of every result.

OneRoll app icon
Web tool · OneRoll

Roll a dice

A fair six-sided roll with a counter for each face.

OneChoose app icon
Web tool · OneChoose

Pick who goes first

Add the players and let it choose a starter at random.

OneTime app icon
Web tool · OneTime

Interval timer & stopwatch

Set work, rest and rounds, or time laps with a stopwatch.

OneCount app icon
Web tool · OneCount

Tap-to-count tally counter

Count anything with one tap and keep a running total.

OneType app icon
Web tool · OneType

Test your typing speed

Type for 15, 30 or 60 seconds and see your WPM and accuracy.

Apps and tools that do one thing well

Robz Apps is an independent software studio run by Vignesh Viswanathan. Everything on this site is designed, built and supported by one developer, with a simple rule: an app should open, finish the job and get out of the way. The catalogue covers utilities, productivity, photo and video, and a handful of smaller tools for jobs that do not need a full app.

The site has three parts. The app catalogue lists every iPhone, iPad and Mac app with screenshots and a direct App Store link. The web tools are small browser utilities you can use without installing anything: Scapture beautifies screenshots, OneToss flips a coin, OneRoll rolls dice, OneChoose picks who goes first, OneTime runs intervals and a stopwatch, OneCount keeps a tally and OneType tests your typing speed. The OneInsta, OneTok, OneFb and OneTube tools save public social videos and photos in the quality the platform publishes.

How the tools work

Tools like the coin flip, dice roller and typing test run entirely in your browser — nothing is uploaded and nothing is stored. The downloaders work differently: you paste a link, our server asks the platform for the media attached to that public post and streams the file straight to your browser. The file is not kept on our side, and post details stay in memory for at most 15 minutes so repeat lookups are fast. No account is needed for any tool, and none of them ask for personal information.

Written and maintained by a person

The guides are written from using the tools and the apps, not generated from search results. Each one walks through the same job on iPhone, Android, Mac and Windows, explains what to do when a link fails, and is revised when a platform changes how it serves media. There are no sponsored posts, no scraped articles and no auto-generated pages on this site. If something here is wrong or out of date, email contact@robzapps.com and it will be corrected.

Free, and paid for by ads

Every web tool is free. Display advertising covers the server and bandwidth costs. Ads are labelled, kept away from the buttons that do the work, and never placed inside a tool. The privacy policy explains what is collected and how to control ad personalization, and the about page covers the studio in more detail.

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