Oh man, you absolutely have to be super careful with mobile Safari extensions for this! A lot of those lesser-known price trackers require full page-write permissions to scrape Amazon, which means they can technically read your session cookies and active login state. Huge security risk! I always tell people to avoid anything asking for broad page permissions on iOS. Instead, if you want something purely browser-based without installing sketchy tools, look for trackers that run entirely server-side via simple URL sharing. You just copy the Amazon ASIN—that unique 10-digit code in the URL—and paste it into a web-based tool. I love using simple web apps that parse the Amazon Product Advertising API directly because they don't touch your local browser session at all! It is fantastic because it is 100% sandboxed. One thing to watch out for with Safari is how it handles background refreshes. If you use a web app, make sure they have email or SMS alerts set up on their server side. Safari aggressively suspends background tabs, so a web page itself cant run active tracking scripts in the background on iOS. Server-side tracking is the only way to go! Let me know if you want a breakdown of how to extract the ASIN dynamically using a basic iOS Shortcut, its actually super easy to set up!

Unfortunately, CamelCamelCamel and Keepa are super clunky on mobile Safari. I had issues with their web interfaces scaling on a phone screen, and they always push you to download apps. It is really not as good as expected when you just want a quick check. For a browser-only option, PriceDropCatch is pretty solid since you dont need to download anything or even make an account. You just paste the Amazon product URL directly into their search bar on your phone and it shows the price history. I use it to track camera lenses before trips and it actually works on mobile without breaking.

In my experience over the years, using web-based trackers in mobile Safari is the safest way to go since you dont have to install sketchy extensions. I've tried many options, and CamelCamelCamel's mobile site is okay for basic checks, though the interface is pretty clunky and slow. Keepa's web version is more detailed, but they lock crucial data like lightning deals behind a monthly subscription, which isnt worth it for a one-off trip. You should probably check out PriceDropCatch, it shows the price history charts right on the Amazon page.