61
BU Score
Solid
Smart Ruler
✍️ bumetric analysis
“
Smart Ruler is an Android app from Smart Tools co. in the Tools category, currently rated 3.6★ across 13,244 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Our BU Score puts it at 61: Solid (established niche player). For a Tools app, that means established niche player.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
📊 Performance Tracking LIVE
Loading…
Rating
—
Reviews
—
Forecast Revenue / mo
—
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 3 of 3 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Mid install base (13,244 ratings)METRIC | +$5,500 | |
| Mature app (15y old)METRIC | +$1,500 | |
| Ad-supported / freemiumMETRIC | +$600 |
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 →🔖 v1.7.2🔄 updated 1mo ago📂 Tools💰 Free📺 Ad-supported🚀 Launched 2010 (15y old)
📝 About this app
Smart Ruler is in the 1st set of the Smart Tools collection.
This app measures the length of a small object by touching the screen.
Usage is very simple.
1. Put an object on the screen of your device.
2. Adjust the object to the left of the screen.
3. Touch the screen, adjust the red line and read the length.
* Main features :
- Multi-touch
- Meter <-> Inch
- Background color
- Material design
I calibrated the app on a lot of Android devices. If it is not accurate, you can enter the actual width with [Calibration] menu.
* Pro version added features:
- No ads
- Caliper mode
- Architectural and Engineering scales
- Ruler extension
- Protractor, level, thread pitch
* Do you want more tools?
download [Smart Ruler Pro] and [Smart Tools] package.
For more information, watch YouTube and visit the blog. Thank you.
This app measures the length of a small object by touching the screen.
Usage is very simple.
1. Put an object on the screen of your device.
2. Adjust the object to the left of the screen.
3. Touch the screen, adjust the red line and read the length.
* Main features :
- Multi-touch
- Meter <-> Inch
- Background color
- Material design
I calibrated the app on a lot of Android devices. If it is not accurate, you can enter the actual width with [Calibration] menu.
* Pro version added features:
- No ads
- Caliper mode
- Architectural and Engineering scales
- Ruler extension
- Protractor, level, thread pitch
* Do you want more tools?
download [Smart Ruler Pro] and [Smart Tools] package.
For more information, watch YouTube and visit the blog. Thank you.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Smart Ruler
- Developer
- Smart Tools co.
- Bundle ID
- kr.sira.ruler
- App Store URL
- Open in App Store
- Category
- Tools
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- smart-tools.biz
- Tagline
- Not found
- 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
- $1.2K/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- Not found
- 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
- Not found
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
📈Ratings growth13,244 ratings+22% lifetimeShow 3-year history estimate ▾
Tracked (1 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
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 Smart Ruler: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.