
Sky Live HTTP Headers
WebSniffer
HTTP-Repeater (HTTP/s Live Headers) (Beta)
HTTP Header Analyzer
HTTP-TRACKER
Requestly
HTTP Header Spy
Modify Header Value (HTTP Headers) is a browser extension that allows you to add, modify or remove a header for any request to your preferred domains.

App Cost Calculator
MVPBuilder.io
Estimapp
MVP-Challenge
Offshore Development Cost Calculator
Project Cost Estimator
CostEstimator
Free MVP cost calculator: describe your app in 5 clicks and get a realistic 2026 estimate for a freelancer build, a traditional agency and a fixed-price 14-day build by senior professionals, where the client owns the code.
Which is more popular?
Based on our record, Modify Header Value (HTTP Headers) seems to be more popular. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | mybrowseraddon.com | squadprime.com |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from the United States · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Modify Header Value (HTTP Headers) yet.
SquadPrime MVP Cost Calculator is a free, no-signup tool for founders who want a realistic number before they talk to anyone. Describe your product in 5 clicks: platform (web, mobile or both), the features you need, user accounts, payments, integrations and admin tools. In about 30 seconds you...
What each product offers, as listed by its team.


Possible disadvantages
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Fixed-price MVP in 14 days for non-technical founders | SquadPrime
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Modify Header Value (HTTP Headers) and SquadPrime.
SquadPrime's answer:
It compares three routes side by side - a freelancer build, a traditional agency and a fixed-price 14-day build - instead of giving one number. Five clicks, about 30 seconds, no signup, and the ranges reflect 2026 market rates.
It is built by SquadPrime, so the fixed-price route is a real offer, not a theory: a fixed price from $4,000 agreed before work starts, a live MVP in about 14 days, and 100% of the code is the founder's on delivery.
SquadPrime's answer:
Most app cost calculators ask for an email before showing a number, or give one wide range with no context. This one shows the result immediately, splits it by route (freelancer, agency, fixed-price 14-day build) and explains the trade-offs in speed, risk and who owns the result.
If you want the fixed-price route, the next step is a free 30-minute call where you get the exact number and a launch date.
SquadPrime's answer:
SquadPrime's answer:
SquadPrime is a fixed-price MVP studio in Sheridan, Wyoming. Founders kept asking the same first question - "what will this cost?" - so we built the calculator to answer it in 30 seconds with real 2026 market ranges, before any call.
SquadPrime itself builds the first version in about 14 days with senior professionals at a fixed price agreed upfront. If it does not work by day 14, the invoice is zero - and we keep building until it ships.
SquadPrime's answer:
A static web page with plain HTML, CSS and client-side JavaScript. The estimate is computed in the browser - nothing is sent to a server, no account and no email are needed to see the result.
Share your experience with using Modify Header Value (HTTP Headers) and SquadPrime. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Yep that started recently. I found a solution with the add-on Modify Header Value (HTTP Headers) , you need to add two rules:. Source: over 3 years ago
Going off of what a user said in the comments of another post complaining about this, you can get the old behaviour back by modifying the request headings. I've managed to do this using a Chrome extensions called Modify Header Value... Source: over 3 years ago
To change user agent on fenix (nighlty ,using custom collection )I use https://mybrowseraddon.com/modify-header-value.html It can also modify other header parameters . Source: over 4 years ago
Tracking SquadPrime since Oct 2026.
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