Last updated . This site is run by KLM Labs (Mayank Kumar Grover). Questions: privacy@klmlabs.app.
What this site does not do
- No cookies, and nothing stored in your browser, by our pages or by Cloudflare’s script.
- No ads, tracking pixels, forms, accounts or email sign-ups. Sample PDFs download without asking for anything.
- Our pages have no JavaScript of their own. Cloudflare adds one script, for visit statistics.
Visit statistics (Cloudflare Web Analytics)
Cloudflare, which hosts this site, adds its analytics script to every page. We use it to count page views and visits, and to see how fast pages load. We see totals only, such as views per page and visits by country, browser and device type, never a list of visitors.
What the script sends
On each page you open, Cloudflare gets:
- your IP address and browser type, when your browser fetches the script from
static.cloudflareinsights.com - the page’s address, and the page you came from if your browser shares it
- a random ID for that one page view, new on every page
- your browser’s name and version
- how you opened the page: a link, a reload or Back
- when the page loaded, how long it took and its size
- the web protocol used (such as HTTP/2) and how much memory the page uses
- a code that names this site, not you
- page-speed scores, in a second report that can follow when you leave or hide the page
The reports go to this site’s own address (klmlabs.app/cdn-cgi/rum), where Cloudflare receives them. Cloudflare can change what its script sends.
What Cloudflare says
Cloudflare says its analytics don’t follow you across the other sites it serves, don’t pick you out by your IP address or browser for its analytics, and, for now, don’t record the part of a link after a “?”. It keeps every report for 7 days, then a sample of about 10%. We can see the last six months.
Cloudflare doesn’t say when it deletes this data. Its analytics docs don’t say how it uses your IP address or works out your country, and its privacy policy says the visitor data it handles may include IP addresses. More in Cloudflare’s Web Analytics docs.
To turn the script off, block static.cloudflareinsights.com. Most content blockers already do, and every page works the same without it.
App Store button taps
When you tap an App Store button, we add one to that page’s daily count, such as “November 6, 2026, Invoice Maker, consulting template: 3”. The count holds only the date, the app and the page: no IP address, device details or cookie. It shows us which pages help people find our apps.
Safari’s App Store banner on some pages goes straight to Apple, and we don’t count it.
Hosting
Cloudflare hosts this site. To deliver pages and protect the site from attacks, it handles technical data such as your IP address and browser type, under Cloudflare’s privacy policy. Its servers also ask your browser to report pages that fail to load. We add no other tracking.
Links to other sites
The App Store and other sites we link to have their own privacy policies. On the App Store, Apple’s privacy policy applies.
Sign-in and crash reports in our apps
In every app below, signing in is optional. The app offers it only after a purchase, a free trial or a restore, with Skip, and nothing in it needs an account.
- Construction Calculator sends crash reports from version 1.1.0. From version 1.2.0 you can choose to sign in with Apple or Google; if you do, the app keeps your email address and name.
- Flip Clock sends crash reports from version 1.1.0, and from that version you can choose to sign in with Apple or Google; if you do, the app keeps your email address and name.
- From version 1.4.1 Invoice Maker sends crash reports, and you can choose to sign in with Apple or Google; if you do, the app keeps your email address and name, and its sign-up page offers tips and member offers by email.
- PDF Scanner sends crash reports from its first version, 1.1.0, and you can choose to sign in with Apple or Google; if you do, the app keeps your email address and name.
- Signer sends crash reports from version 1.2.0, and from that version you can choose to sign in with Apple or Google; if you do, the app keeps your email address and name.
From the version on its line, each app's App Store privacy details list these as Contact Info (Email Address and Name, only if you sign in) and Diagnostics (Crash Data): linked to you, not used to track you. Each app's own policy, linked below, has the details.
Our apps
Each app's own privacy policy covers what the app does on your phone:
Changes
When this policy changes, the date at the top changes too.