Barunsem: Exact Calculator
Answers like 1/3 + 2√2, no ads
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Type 1/3 + √8 and get 1/3 + 2√2, not 3.16… Exact fractions, roots and π, shown the textbook way, with no ads.
A scientific calculator that shows answers the way your textbook does.
Type 1 ÷ 3 + √8 and get 1/3 + 2√2 instead of 3.1617… sin 60° gives √3/2, (1 + √2)² gives 3 + 2√2, and 1/(1 + √2) is rationalized to −1 + √2. The decimal value is shown right below.
FREE, NO ADS
- Exact fractions, roots and π, with a textbook-style preview
- See how an ambiguous expression like 6÷2(1+2) is read before you press =
- 0.1 + 0.2 = 0.3 — no floating-point surprises
- Trig, inverse and hyperbolic functions, logs, powers, factorials, combinations; DEG, RAD and GRAD
- Engineering notation and SI prefixes, digit and number-format settings, landscape keypad
- Unit conversion: 94 units in 13 categories, 30 physical constants
- Base conversion (2, 8, 10, 16) and bitwise operations
- History of your last 30 calculations
BARUNSEM PRO (ONE-TIME PURCHASE, NOT A SUBSCRIPTION)
- Graphs with roots, extrema and intersections
- Equation solver with exact roots like 1 ± √2, linear systems
- Matrices with exact fractional inverses and determinants
- Complex numbers in rectangular and polar form
- Statistics and regression
- 1,000-entry history and color themes
PRIVACY
No sign-up and no internet use. History stays on this device. No ads or analytics.
EXAMS
Barunsem is a phone app, so it cannot be used in exam rooms. Bring a calculator your exam allows; use Barunsem for study, practice and work.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://inphilchoi.github.io/barunsem-privacy/
Ratings & Reviews
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The developer, INPHIL CHOI, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- INPHIL CHOI
- Size
- 21.3 MB
- Category
- Education
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 4 more
- English, Japanese, Korean, Simplified Chinese, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Barunsem Pro $3.99
- Copyright
- © 2026 creativelab