46
BU Score
Emerging
ChangeTheHeaders for Safari
✍️ bumetric analysis
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ChangeTheHeaders for Safari is an iOS app from Jeff Johnson in the Utilities category, currently rated 4.1★ across 7 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Our BU Score puts it at 46: Emerging (early traction worth watching). For a Utilities app, that means early traction worth watching.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
📊 Performance Tracking LIVE
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Rating
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Reviews
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Forecast Revenue / mo
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Snapshots tracked
0
since first record
Range:
💰 Forecast Revenue / mo
MODELRevenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($0.00)METRIC | +$2,800 | |
| Good rating (4.1★)METRIC | +$800 | |
| Single-language (English only)METRIC | −$400 | |
| Pre-traction phase (7 ratings)METRIC | −$300 | |
| Growing app (1y old)METRIC | +$200 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 15 MB🔞 4+📱 iOS 17.0+🔖 v2.0🔄 updated 1y ago🌐 EN📂 Utilities💰 Paid🚀 Launched 2025 (1y old)
📝 About this app
ChangeTheHeaders is a Safari extension for iOS, iPadOS, macOS, and visionOS that allows you to customize HTTP request headers such as Accept, Accept-Language, Cookie, and User-Agent.
You can set different request headers for specific URL domains and for specific resource types, such as audio and video, iframes, or images. Your settings can be synced to all of your devices via iCloud.
Made by indie developer Jeff Johnson, known for StopTheMadness Pro. The support link has documentation and my email address.
You can set different request headers for specific URL domains and for specific resource types, such as audio and video, iframes, or images. Your settings can be synced to all of your devices via iCloud.
Made by indie developer Jeff Johnson, known for StopTheMadness Pro. The support link has documentation and my email address.
🆕 What's New · v2.0
Header rules now support a URL filter in addition to URL domains. The details and differences are explained in the online documentation.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- ChangeTheHeaders for Safari
- Developer
- Jeff Johnson
- Bundle ID
- com.underpassapp.OverrideHeaders
- App Store URL
- Open in App Store
- Category
- Utilities
- Content rating
- 4+
- Languages
- EN
Company
- Website
- underpassapp.com
- Tagline
- Not found
- Description
- Underpass App Company by Jeff Johnson
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $201/mo
- Top-grossing rank
- Outside top 100 in US Utilities
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- https://github.com/lapcat/StopTheMacAppStore
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- https://underpassapp.com/news/
- Press / News
- Not found
Contacts & Socials
- Socials
- github
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
📈Ratings growth7 ratings+600% lifetimeShow 3-year history estimate ▾
Tracked (4 weeks) Pre-tracking estimate (14 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
Full revenue analysis
Read the article-style breakdown for ChangeTheHeaders for Safari: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.