78
BU Score
Strong
Rechner₊
✍️ bumetric analysis
“
Rechner₊ is an iOS app from Impala Studios in the Utilities category, currently rated 4.7★ across 1,717,319 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Our BU Score puts it at 78: Strong (healthy traction). For a Utilities app, that means healthy traction.
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
—
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 14 of 14 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| High install base (1,717,319 ratings)METRIC | +$12,000 | |
| Paid app ($0.00)METRIC | +$2,800 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| cancelledREVIEW | −$1,500 | |
| excellent appREVIEW | +$1,500 | |
| Mature app (15y old)METRIC | +$1,500 | |
| Multilingual (31 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| annoying adsREVIEW | −$1,100 | |
| too expensiveREVIEW | −$1,000 | |
| priceyREVIEW | −$800 |
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.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Jun 25
Jul 25
Aug 25
Sep 25
Oct 25
Nov 25
Dec 25
Jan 26
Feb 26
Mar 26
Apr 26
May 26
⭐ 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 →💾 170 MB🔞 4+📱 iOS 15.0+🔖 v9.26.2🔄 updated 3w ago🌐 CA, HR, CS, DA, NL +26📂 Utilities💰 Free🚀 Launched 2010 (15y old)
📝 About this app
America's #1 Calculator App! Download Calculator₊ Now - Your All-in-One Math Solution!
We're excited to announce the biggest update to Calculator₊ in 10 years! With over 200 million downloads and a whopping 3 million+ 5-star ratings, Calculator₊ is the trusted choice of millions worldwide. And now, it's even better!
More Than Just Your Average Calculator!
• Standard Calculator: Breeze through basic arithmetic operations like addition, subtraction, multiplication, and division.
• Scientific Calculator: Tackle complex calculations with ease, including trigonometric, logarithmic, and exponential functions.
• Calculation History: Keep track of your past calculations with a detailed history log.
• Unit Converter: Effortlessly convert units like inches to centimeters and much more, making it a handy tool for everyday use.
• Percentage Calculator: Easily calculate percentages, increases, and decreases with pre-designed input fields that do the work for you.
• Currency Converter: Convert currencies in real-time, including Bitcoin, with the latest exchange rates.
• Fraction Calculator: Work seamlessly with fractions – perfect for students and professionals alike.
• Ad-Free Experience: Say goodbye to annoying full-screen ads and focus on your calculations.
Be Amazed by Our New AI-Powered Math Solver!
• AI Math Solutions: Instantly solve math equations, quizzes, and word problems with our advanced AI. Use the Photo Solver to snap a picture of any problem, and Calculator₊ will work its magic.
• Math Notes: A dedicated note-taking tool for all your math needs. Jot down equations, diagrams, and notes in a space designed for mathematical thinking.
• Instant Math: In Math Notes mode, simply write an equation, add an "=", and Calculator₊ will generate the solution in real-time.
Built for Everyone, Now Even More Accessible!
Calculator₊ is designed to work effortlessly for all users, no matter how you use your iPhone, and includes these additional accessibility features:
• Dynamic Text Size: Scale the calculator interface to the text size that works best for you, without losing layout clarity.
• VoiceOver Support: Navigate & Calculate using VoiceOver, fully compatible with iOS accessibility settings.
• High-Contrast Mode: A bold, high-contrast display that makes every button and result instantly readable in any lighting condition.
• Dark and Light Mode: Calculator₊ automatically adjusts to your preferred mode.
Why Choose Calculator₊?
• Proven Track Record: Over a decade of providing fast and reliable calculations.
• Loved by Millions: Join the 200+ million users who rely on Calculator₊, with an average rating of 4.7 stars from 3.5 million reviews.
• Versatile & Powerful: Handles everything from basic sums to advanced scientific calculations. Perfect for school, work, or home.
Celebrate with a Special Gift!
To celebrate the release of this massive update, we're offering a 1-MONTH FREE TRIAL of our premium features, including:
• Ad-Free Experience: No more pesky ads.
• Unlimited AI Math Solving: Solve as many equations and problems as you need.
• Unlimited Fraction Calculations: Ideal for students and professionals alike.
• Unlimited Currency Conversions: Including real-time Bitcoin conversions.
• Premium Customer Support: Get priority assistance from our expert support team.
If you have any suggestions or questions, our support team is ready to help. Simply email us at support@impalastudios.com.
Terms & Conditions: https://impalastudios.com/terms
Privacy Policy: https://impalastudios.com/privacy
We're excited to announce the biggest update to Calculator₊ in 10 years! With over 200 million downloads and a whopping 3 million+ 5-star ratings, Calculator₊ is the trusted choice of millions worldwide. And now, it's even better!
More Than Just Your Average Calculator!
• Standard Calculator: Breeze through basic arithmetic operations like addition, subtraction, multiplication, and division.
• Scientific Calculator: Tackle complex calculations with ease, including trigonometric, logarithmic, and exponential functions.
• Calculation History: Keep track of your past calculations with a detailed history log.
• Unit Converter: Effortlessly convert units like inches to centimeters and much more, making it a handy tool for everyday use.
• Percentage Calculator: Easily calculate percentages, increases, and decreases with pre-designed input fields that do the work for you.
• Currency Converter: Convert currencies in real-time, including Bitcoin, with the latest exchange rates.
• Fraction Calculator: Work seamlessly with fractions – perfect for students and professionals alike.
• Ad-Free Experience: Say goodbye to annoying full-screen ads and focus on your calculations.
Be Amazed by Our New AI-Powered Math Solver!
• AI Math Solutions: Instantly solve math equations, quizzes, and word problems with our advanced AI. Use the Photo Solver to snap a picture of any problem, and Calculator₊ will work its magic.
• Math Notes: A dedicated note-taking tool for all your math needs. Jot down equations, diagrams, and notes in a space designed for mathematical thinking.
• Instant Math: In Math Notes mode, simply write an equation, add an "=", and Calculator₊ will generate the solution in real-time.
Built for Everyone, Now Even More Accessible!
Calculator₊ is designed to work effortlessly for all users, no matter how you use your iPhone, and includes these additional accessibility features:
• Dynamic Text Size: Scale the calculator interface to the text size that works best for you, without losing layout clarity.
• VoiceOver Support: Navigate & Calculate using VoiceOver, fully compatible with iOS accessibility settings.
• High-Contrast Mode: A bold, high-contrast display that makes every button and result instantly readable in any lighting condition.
• Dark and Light Mode: Calculator₊ automatically adjusts to your preferred mode.
Why Choose Calculator₊?
• Proven Track Record: Over a decade of providing fast and reliable calculations.
• Loved by Millions: Join the 200+ million users who rely on Calculator₊, with an average rating of 4.7 stars from 3.5 million reviews.
• Versatile & Powerful: Handles everything from basic sums to advanced scientific calculations. Perfect for school, work, or home.
Celebrate with a Special Gift!
To celebrate the release of this massive update, we're offering a 1-MONTH FREE TRIAL of our premium features, including:
• Ad-Free Experience: No more pesky ads.
• Unlimited AI Math Solving: Solve as many equations and problems as you need.
• Unlimited Fraction Calculations: Ideal for students and professionals alike.
• Unlimited Currency Conversions: Including real-time Bitcoin conversions.
• Premium Customer Support: Get priority assistance from our expert support team.
If you have any suggestions or questions, our support team is ready to help. Simply email us at support@impalastudios.com.
Terms & Conditions: https://impalastudios.com/terms
Privacy Policy: https://impalastudios.com/privacy
🆕 What's New · v9.26.2
Calculator₊ just got better for everyone.
This update is all about accessibility, making sure the calculator you already trust works just as effortlessly, no matter how you use your iPhone.
What’s new:
* Dynamic Text Size: Adjust the text size across the entire app to whatever feels comfortable. Perfect for anyone who prefers larger, easier-to-read numbers.
* VoiceOver Support: Calculator₊ now fully supports the iOS VoiceOver feature, allowing you to navigate & calculate confidently.
* High-Contrast Mode: A new high-contrast display option makes buttons and results sharper and easier to read, both in bright sunlight or low light.
These features work seamlessly alongside your iOS accessibility settings, no additional setup required!
As always, if you have feedback or questions, reach out to us at support@impalastudios.com — we read every message.
This update is all about accessibility, making sure the calculator you already trust works just as effortlessly, no matter how you use your iPhone.
What’s new:
* Dynamic Text Size: Adjust the text size across the entire app to whatever feels comfortable. Perfect for anyone who prefers larger, easier-to-read numbers.
* VoiceOver Support: Calculator₊ now fully supports the iOS VoiceOver feature, allowing you to navigate & calculate confidently.
* High-Contrast Mode: A new high-contrast display option makes buttons and results sharper and easier to read, both in bright sunlight or low light.
These features work seamlessly alongside your iOS accessibility settings, no additional setup required!
As always, if you have feedback or questions, reach out to us at support@impalastudios.com — we read every message.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Rechner₊
- Developer
- Impala Studios
- Bundle ID
- com.itwcalculator.calculatorforipadfree
- App Store URL
- Open in App Store
- Category
- Utilities
- Content rating
- 4+
- Languages
- CA, HR, CS, DA, NL, EN, FI, FR, DE, EL, HI, HU, ID, IT, JA, KO, MS, NB, PL, PT, RO, RU, ZH, SK, ES, SV, TH, ZH, TR, UK, VI
Company
- Website
- www.impalastudios.com
- Tagline
- We build apps that elevate your everyday life
- Description
- Welcome to Impala Studios We build apps that elevate your everyday life Built for millions. Crafted by us. We are a specialized international collective of creators building top-tier iOS apps across weather, travel, gaming, and utilities. From the first morning alarm to the last flight of the day, our products are designed to be as […]
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- OG image
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- $400.0K ($300.0K – $400.0K)AI medium
- AI annual estimate
- $4.8M/yr
- ML model estimate / mo
- $78.2K/mo
- Top-grossing rank
- 🇯🇵#35 /100 🇨🇦#69 /100 🇦🇺#78 /100 🇬🇧#91 /100
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- https://www.linkedin.com/company/impala-studios
- 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
- instagram · linkedin
- info@impalastudios.com
- Phone
- Not found
- Contact page
- https://www.impalastudios.com/contact-us/
- About page
- https://www.impalastudios.com/about-us/
✨AI Revenue EstimateCONFIDENCE: MEDIUM
The iOS app "Rechner₊" by Impala Studios is estimated to generate between $300,000 and $400,000 in monthly revenue. Sensor Tower reports a monthly revenue of $400,000, while Adapty indicates an estimate of $300,000 per month. This translates to an estimated annual revenue of $4.8 million.
Sources mentioned: Sensor Tower, Adapty, Reddit
⭐Recent App Store Reviews49 latest · avg 3.67★ · 61.2% 5★ · 26.5% 1★
5★30 (61%)
4★2 (4%)
3★1 (2%)
2★3 (6%)
1★13 (27%)
+0 ratings/week
Praise: great ×6 love ×5 excellent ×3 recommend ×3 best ×3Complaints: subscription ×4 broken ×2 crash ×1 expensive ×1 hate ×1
Top positive
★★★★★ The cacquulater
The end…
★★★★★ User
Works great easy to use…
Top negative
★☆☆☆☆ Pay to use
It’s in the title. You pay to use something that came on your device and was free. It takes a special type of moron to willingly pay a subscription service for a calculator.…
★☆☆☆☆ Location needed no way it is trying to spy on you it’s a fake calculator app
DO NOT INSTALL OR YOU GET SPYED ON…!…
📈Ratings growth1,717,319 ratings+42% lifetimeShow 3-year history estimate ▾
Tracked (32 weeks) Pre-tracking estimate (35 weeks) · model-based, ±5% noise · anchored to release date and current value
🗺️Geographic Distribution●Top 10●Top 30●Top 60
🌍Top Countries — Grossing Rank4 countries
🇯🇵JP#35 /100
🇨🇦CA#69 /100
🇦🇺AU#78 /100
🇬🇧GB#91 /100
📊Category Rank Trajectory#35 now · best #32 · worst #100
Lower line = better rank · Estimate from ratings growth model · Lower position on chart = worse rank · Higher = top of chart
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 Rechner₊: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.