Calculator!! vs Octo Browser
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator!!
This advanced calculator offers a comprehensive history of your calculations and supports complex functions like fraction manipulation, angle conversions, and equation solving. It also includes specialized tools for engineers and a dice roller.
- Calculation history
- Fraction manipulation
- Angle conversions (degrees, minutes, seconds)
- Permutation, combination, LCM, GCD
- Quadratic and linear equation solver
- Coordinate conversion
- Dice roller
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Calculator!! has the following additional functionality compared with most available calculators: - Shows the expression as you enter and keeps a history of your calculations (Swipe up on the screen to access the history.) - Capability of performing fraction manipulations and converting between different formats (proper, improper, and mixed fractions) and seamless integration of fraction, integer, and decimal manipulations. - Capability of inputting degrees, minutes, and seconds for angles and converting between degrees-minutes-seconds format and decimal format. - Capability of calculating permutation, combination, Least Common Multiple (LCM), and Greatest Common Divisor (GCD). - Quadratic and system of two linear equations solver - Rectangular to polar and polar to rectangular coordinate conversion (extremely useful for phasor calculations for electrical engineers) - Throws a set of dice (choice of 1 die to 4 dice) - Backspace to delete last digit entered. - Tip Calculator - Geometry Calculator - The left pane scrolls to reveal more functionality without a need to switch modes. The digits and most common operations are always visible and the less common operations can be revealed by scrolling the left half of the screen. - Sinusoidal functions can be calculated for angles in units of degrees, radians, or gradians. - Showing the content of memory on MR button, as long as it fits. Calculator!! is an ongoing project and we are working on more features and functions to be added to every update of the app. You are going to love the simplicity of the user interface and you will get used to the extra functionality added to this product. Please do not hesitate to contact us for any questions, comments, to report any bugs, or to suggest additional functions you would like to see in the upcoming updates.
Octo Browser
This private browser allows you to create separate profiles for different online activities, ensuring your cookies, cache, and history remain isolated. Easily switch between work, personal, or research contexts without data leakage.
- Independent browser profiles
- Isolated cookies and cache
- Separate browsing history
- Customizable browser identification
- Proxy support (HTTP, HTTPS, SOCKS5)
- Instant profile switching
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A private browser built on independent profiles. Create browser profiles for every context you need - work, personal, research, or anything else. Each profile is its own world, with its own cookies, cache, history, and settings. Switch between them in one tap. Nothing leaks between them. PROFILES THAT STAY SEPARATE Every browser profile is its own container. Cookies and sessions don't mix, and data from one profile never shows up in another. - Create profiles in seconds - Each profile has its own cookies, storage, and session - Instant switching from the main screen - Separate browser history POWERFUL BROWSING TOOLS Every profile comes with flexible settings you fully control: - Browser identification, language, timezone, and regional settings - Proxy (HTTP, HTTPS, SOCKS5) MADE FOR EVERYDAY USE - Keep work and personal browsing fully separated - Stay signed in to different sites across different profiles
Screenshots
Verdict
The clearest difference is price: Octo Browser at Free against Calculator!!'s $0.99. Octo Browser also leads on update cadence (every 5 days vs every 10 months). Calculator!!'s advantage is rating (4.4 vs 3.6) and review sentiment (75% vs 53%). On ratings volume, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Octo Browser is free to download; Calculator!! costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Calculator!! holds the better App Store score, 4.4 against 3.6. Both are backed by a comparable volume of ratings — 56 and 20 respectively. Written reviews point the same way: 75% of Calculator!!'s written reviews are positive against 53% of Octo Browser's.
Calculator!! ships an update every 10 months, Octo Browser every 5 days. Both last shipped on October 14, 2026.
| Parameter | Calculator!! | Octo Browser |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.4 (56 ratings) — better | 3.6 (20 ratings) |
| Positive reviews | 75.0% of reviews — better | 53.3% of reviews |
| Number of ratings | 56 — better | 20 |
| Update frequency | Every 10 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 10.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 16 MB |
| Age rating | 4+ | 17+ |
| Developer | Dogahe | BLACKBIRD SECURE BROWSING LTD |
Customer experience
Calculator!!
Octo Browser
In-app purchases
Calculator!!
No in-app purchases
Octo Browser
No in-app purchases
Questions
Is Calculator!! free?
Is Octo Browser free?
Which has better reviews, Calculator!! or Octo Browser?
Do Calculator!! or Octo Browser have ads?
Which is updated more often, Calculator!! or Octo Browser?
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