📊 29K iOS Apps Tracked Updated 1 min ago ⚡ Revenue Forecasts
Create Account 🔑 Sign In
Home ⚡ Optimize
54
BU Score
Solid

Kontaktlinsen Tracker Premium

4.7 ✍️ Editor
✍️ bumetric analysis

Kontaktlinsen Tracker Premium is an iOS app from DOUBLE U s.r.o. in the Education category, currently rated 4.7★ across 38 ratings. Initial signal reads as mostly critical sentiment so far: users flag rough edges and unmet expectations.

Our BU Score puts it at 54: Solid (established niche player). For a Education 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…
idle
0%
Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
0
since first record
Range:

💰 Forecast Revenue / mo

MODEL
Revenue 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
Excellent rating (4.7★)METRIC
+$2,200
Mature app (9y old)METRIC
+$1,500
Localized (7 languages)METRIC
+$600
Pre-traction phase (38 ratings)METRIC
−$300
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 11 MB🔞 4+📱 iOS 15.0+🔖 v2.9🔄 updated 4mo ago🌐 CS, EN, FR, DE, PL +2📂 Education💰 Paid🚀 Launched 2016 (9y old)

📝 About this app

Keep your eye health in check with Contact Lenses Tracker, the ultimate contact lens tracking app. Say goodbye to the risk of forgetting to replace your lenses on time and prioritize your eye health effortlessly.

Simply input your lenses and let the app take care of the rest. This comprehensive tracking solution ensures you receive timely notifications as your lenses approach expiration, persistently reminding you until they are replaced. Bid farewell to extended wear and embrace responsible lens usage.

• Stay informed: Always know when you started using your lenses and effortlessly track their lifespan.
• Timely reminders: Receive notifications when your lenses are nearing their expiration date, so you can promptly replace them.
• Individual lens support: Seamlessly manage both right and left lenses in case you loose one.
• Accessory tracking: Keep tabs on essential accessories like solution, case, and eye drops, ensuring they are timely replaced as well.
• Prescription storage: Safely store your prescription within the app for easy reference whenever needed.


And users really love it:
"This app is very helpful because it keeps reminding you to change your contacts until you do."

"Does everything it should beautifully. Deep customization to fit my needs."

"Always reminds me on the dot that my contacts have expired."

"Best app I've used for tracking lenses so far. Also, it's one of the few that is updated regularly."

Terms of Use: https://doubleuapp.com/privacy/terms.html

🆕 What's New · v2.9

• improvements and bug fixes

If there is a problem, please let us know via the app menu.
If you like the app, please leave a positive review.
Thank you for all the feedback, reviews, and support.

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
Kontaktlinsen Tracker Premium
Developer
DOUBLE U s.r.o.
Bundle ID
com.doubleu.ContactLensesPro
App Store URL
Open in App Store
Category
Education
Content rating
4+
Languages
CS, EN, FR, DE, PL, SK, TR

Company

Website
lensespro.doubleuapp.com
Tagline
Contact Lenses Pro Reminder and Tracker
Description
Revolutionary iPhone calculator designed with 21st century devices in mind
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
OG image

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 99 in US Education
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
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
Email
Not found
Phone
Not found
Contact page
Not found
About page
Not found
📈Ratings growth38 ratings+3700% lifetimeShow 3-year history estimate ▾Oct 2017Oct 2024May 2026
Tracked (7 weeks) Pre-tracking estimate (37 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.

Similar apps in Education

Full revenue analysis
Read the article-style breakdown for Kontaktlinsen Tracker Premium: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
Read deep-dive →