Word Replacer for Safari
55
Quality Score
Solid
Word Replacer for Safari
Low confidence
✍️ bumetric analysis
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Word Replacer for Safari is an iOS app from Yoshiko Sato in the Utilities category, currently rated 4.8★ across 21 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 55: Solid (established niche player). For a Utilities app, that means established niche player. The full BU Investment Matrix below scores 8 dimensions including monetisation, growth, and operational risk.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
💰 Monthly revenue · now vs forecast
● Right now
$2.2K
per month
→
12-mo forecast
$2.0K – $7.1K
per month
→
24-mo forecast
$1.8K – $16.4K
per month
INDIE tier
💡 Grow this revenue
Free AI audit of this app’s store listing
- Title & subtitle keyword fit
- Description hook & conversion structure
- Screenshots, ratings, reviews strategy
Typical impact: +2-5× organic installs
📊 Performance Tracking LIVE
Loading…
Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD
💰 Estimated build cost
$45K
↳ What it cost to build · not monthly revenue
Likely range $35K – $60K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Slow ROI — current MRR is well below build cost
Synthetic estimate. Inputs: category complexity, file size, screen count, monetization layer, platform reach, age × team-size proxy. Calibrated against 2024-2026 indie-agency rate surveys. Full math + source list on /methodology.
Where the money goes
| 🧱 MVP baseline (design + 1-store ship) | +$28K |
| 📱 5 unique screens × $4.5K | +$22K |
| ⚙ Utilities complexity ×0.85 | $-7575 |
Total estimate
$45K
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$2.2K/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
Direction
Headwinds: rating drift may slow acquisition
6 months
$1.9K – $4.5K
12 months
$2.0K – $7.1K
24 months
$1.8K – $16.4K
Compound growth at +6.0% MoM (tier baseline for INDIE). Range widens with horizon — typical noise band ±40% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Early-stage solo · 41/100INDIE TIERexpected for tierRevenue Strength
3.4
Product Quality
3.8
Market Position
1.5
Growth Velocity
5.0
Defensibility
4.6
Operational Safety
10.0
Founder Strength
3.2
Monetization Maturity
1.0
- 💰 Revenue: Modest — $897 - $5610/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.81★ across 21 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: Insufficient signal to assess trajectory.
- ⚠️ Risk: Low — no material risk signals detected.
🎯 For competitors: Mixed picture. Worth competing if you have a clear UX or pricing edge — otherwise crowded segment.
💵 For acquirers: Estimated asking range 18-32× monthly = $40K-$71K.
Composite of 8 dimensions computed deterministically from public signals — no LLM, every score traces back to a measurable input. Default weights shown; "compete" / "acquire" / "invest" lenses re-weight without re-fetching.
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 4 of 4 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($3.99)METRIC | +$2,800 | |
| Excellent rating (4.8★)METRIC | +$2,200 | |
| Established app (4y old)METRIC | +$800 | |
| Pre-traction phase (21 ratings)METRIC | −$300 |
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.
🆕 What's New · v5.0.0
Revamped UI and enhanced extension functionality.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Word Replacer for Safari
- Developer
- Yoshiko Sato
- Bundle ID
- satofh.WordReplacer
- App Store URL
- Open in App Store
- Category
- Utilities
- Content rating
- 4+
- Languages
- EN, JA
Company
- Website
- Not found
- Tagline
- Support Page
- Description
- Not found
- 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
- $86/mo
- Top-grossing rank
- Outside top 100 in US Utilities
- All-time revenue
- Not found
- Pricing
- Not found
Founder
Founder data not yet collected for this app.
Funding
Funding data not yet collected for this app.
Press & Links
Press & Links data not yet collected for this app.
Contacts & Socials
Contacts & Socials data not yet collected for this app.
⭐Recent App Store Reviews14 latest · avg 4.5★ · 78.6% 5★ · 7.1% 1★
5★11 (79%)
4★1 (7%)
3★1 (7%)
2★0 (0%)
1★1 (7%)
+0 ratings/week
Praise: great ×5 love ×3 amazing ×2 perfect ×1 best ×1Complaints: hate ×1
Top positive
★★★★★ Good Language Learning Tool
I’m learning a language and set this up to replace words I have learned with their translated counterpart. Works like a charm! The CS and IN features are essential and why I decided the price was worth it.…
★★★★★ Works great!
Simple yet powerful and just works!…
Top negative
★☆☆☆☆ No longer works?
I get prompted to press the plus button when I open the extension in safari. There is no plus button anywhere. Please fix this issue…
★★★☆☆ Could use improvements
This extension is pretty good, but has plenty of room for improvement.
It’s relatively easy to use, but the process of getting it set up is a little unclear. Opening the app tells you to go to Settings to turn on the extension, but what it…
📈Ratings growth21 ratings+2000% lifetimeShow 3-year history estimate ▾
Tracked (19 weeks) Pre-tracking estimate (36 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.
📝 About this app
Replace words and phrases on websites with your own text rules in Safari. This Safari extension offers flexible matching options, rule ordering, and convenient tools for testing and backing up your settings.
Key Features:
• Create replacement rules with a source "Word" and target "Replacement".
• Use CS for case-sensitive matching and IN to match text inside larger words. For example, when the Word is her, turning IN off replaces only standalone her, while turning IN on also replaces her inside words such as other and there.… View full description on the official store →
Key Features:
• Create replacement rules with a source "Word" and target "Replacement".
• Use CS for case-sensitive matching and IN to match text inside larger words. For example, when the Word is her, turning IN off replaces only standalone her, while turning IN on also replaces her inside words such as other and there.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 1 MB🔞 4+📱 iOS 15.0+🔖 v5.0.0🔄 updated 0d ago🌐 EN, JA📂 Utilities💰 Paid
📅
What Worked™ · Development Pipeline
6 EVENTS TRACKEDDetected changes in this app over its tracked lifetime — each event links cause (what changed) to effect (what moved). Sorted newest first.See full history →Version history →
2026-03
💲
Went paid — introduced $3.99 price point
2025-07
⭐
Rating ↓ 4.73 → 4.42 (dropped 0.31★)
2024-07
📈
Crossed 10 ratings — social-proof flywheel kicking in
2022-04
⭐
Rating ↑ 3.50 → 4.00 (improved 0.50★)
2022-03
⭐
Rating ↑ 3.00 → 3.50 (improved 0.50★)
2022-02
🚀
First tracked snapshot — initial data captured
🌍
Multi-Country Performance
Available in 5 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇺🇸 US | 4.80952★ | 21 | 4.80952★ this version |
| 🇬🇧 GB | 4.75★ | 4 | 4.75★ this version |
| 🇦🇺 AU | 5★ | 1 | 5★ this version |
| 🇧🇷 BR | 0★ | 0 | — |
| 🇮🇳 IN | 0★ | 0 | — |
🔔
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📝 Description
95
BU Score · Transcendent
More by Yoshiko Sato
View all →📦 Portfolio summaryINDIE studio
2apps·$172/mocombined
Lead-app heavy — top app contributes 50%
Similar apps in Utilities
About this analysis
Why low confidence: only 21 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
📌 Final verdict — read this before you trust the numbers above
Word Replacer for Safari is a small / niche iOS app in the utilities space with weak public traction — only 21 ratings, no founder-verified MRR, and not ranked in any monitored grossing chart. The app appears to be monetised, but public signals are too sparse for a precise revenue estimate.
Bottom line: treat all revenue, audience and acquisition-value numbers on this page as directional only — not founder-verified facts.
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Word Replacer for Safari make per month?▴
Our model estimates Word Replacer for Safari earns roughly $86/mo, but with only 21 ratings the confidence interval is wide. No founder-verified MRR is available for this app, so this is a model output calibrated against comparable apps in the same category. See methodology for the formula.
What apps are like Word Replacer for Safari?▴
Browse the full Utilities category catalog to find similar apps with revenue, build cost, audience and tech stack data. Each /p/{slug} page also shows a Compare side-by-side widget with three peer apps from the same niche.
Who makes Word Replacer for Safari?▴
Word Replacer for Safari is published by Yoshiko Sato on the Apple App Store. See the full publisher portfolio (other apps by the same developer) via the More by developer block on the product page above.
What is Word Replacer for Safari's BU Score?▴
Word Replacer for Safari has a BU Score of 55/100 (Solid). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.