# Kalkulilo (Calculator) vs Surfed Pro Browser & Bookmark

The clearest difference is price: Kalkulilo (Calculator) at $2.99 against Surfed Pro Browser & Bookmark's $17.99. Kalkulilo (Calculator) also leads on rating (4.5 vs 3.0) and review sentiment (76% vs 33%). Surfed Pro Browser & Bookmark's advantage is device support (5 vs 3). On update cadence, ads, in-app purchases and iOS requirement there is nothing between them.

Kalkulilo (Calculator) costs $2.99 and Surfed Pro Browser & Bookmark $17.99 up front. Kalkulilo (Calculator) sells 1 one-off in-app purchase and Surfed Pro Browser & Bookmark sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Kalkulilo (Calculator) holds the better App Store score, 4.5 against 3.0. That said, the two scores are not equally well evidenced: Kalkulilo (Calculator) has 29 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 76% of Kalkulilo (Calculator)'s written reviews are positive against 33% of Surfed Pro Browser & Bookmark's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 10, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Kalkulilo (Calculator) | Surfed Pro Browser & Bookmark |
| --- | --- | --- |
| Price | **$2.99** | $17.99 |
| Rating | **[4.5 (29 ratings)](https://appshunter.io/ios/app/kalkulilo-calculator/id286091993/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/surfed-pro-browser-and-bookmark/id6462056931/reviews) |
| Number of ratings | **29** | 2 |
| Positive reviews | **75.8% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 3 MB | 51 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | **iPhone, iPad, iPod, Mac, Vision Pro** |
| Age rating | 4+ | 17+ |
| Developer | [Alexander Clauss](https://appshunter.io/developer/286091996) | [HOsy - intelligent software.](https://appshunter.io/developer/301200251) |

## What reviewers say

### Kalkulilo (Calculator)

[App page](https://appshunter.io/ios/app/kalkulilo-calculator/id286091993)

This app offers a versatile calculator with multiple modes, including scientific, bitwise, statistical, trigonometric, base conversion, and time calculations. It features a simple mode with large buttons and customizable interface. Widgets for notification center and Apple Watch are also included.

**Highlights:** Scientific calculator functions, Bit/integer mode with logical operations, Statistical calculations, Base/radix conversion (2-36), Time value calculations, Customizable interface, Apple Watch app and widget

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |

**What reviewers like**

- 🚀 Excellent, powerful calculator
- 👍 Variety of modes and number systems
- 👍 Intuitive and easy to use
- 👍 Highly functional for engineers, programmers, and students
- 👍 Replaces physical scientific calculators

**What reviewers complain about**

- 🐛 Stopped working after OS update
- 💰 Ads introduced after being paid app
- 👎 Buttons too small, hard to press
- 🔍 Confusing color scheme and UI

**Reported bugs**

- Number doesn't transfer correctly when switching between modes
- Negative exponents not displayed correctly in engineering notation
- Loses calculation history when changing modes

**Requested features**

- Add calculus, linear algebra, and probability functions
- Implement a 'repeated equals' function
- Add a backspace/delete button
- Allow customizing color scheme
- Improve Apple Watch integration


### Surfed Pro Browser & Bookmark

[App page](https://appshunter.io/ios/app/surfed-pro-browser-and-bookmark/id6462056931)

A unified browser and history manager for Apple devices. It offers smart bookmark collections, tags, notes, and automations to organize browsing across multiple platforms. Ideal for both casual users and professionals needing to manage research and debug web applications.

**Highlights:** Unified multi-browser history, Smart bookmark collections, Tags, notes, and reminders, Web Inspector and Network Monitor, Automated Web Triggers, Dedicated browsing workspaces, Media Viewer

**Features:** Safari Extension, iMessage stickers

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $8.99 | one-time |
| Ultra Tip | $44.99 | one-time |


## Frequently asked questions

### Is Kalkulilo (Calculator) free?

Kalkulilo (Calculator) costs $2.99, and also offers in-app purchases.

### Is Surfed Pro Browser & Bookmark free?

Surfed Pro Browser & Bookmark costs $17.99, and also offers in-app purchases.

### Which has better reviews, Kalkulilo (Calculator) or Surfed Pro Browser & Bookmark?

Kalkulilo (Calculator) is rated higher. Kalkulilo (Calculator) averages 4.5 out of 5 from 29 ratings, while Surfed Pro Browser & Bookmark averages 3.0 from 2 ratings.

### Do Kalkulilo (Calculator) or Surfed Pro Browser & Bookmark have ads?

Neither Kalkulilo (Calculator) nor Surfed Pro Browser & Bookmark shows ads.

### Which is updated more often, Kalkulilo (Calculator) or Surfed Pro Browser & Bookmark?

Kalkulilo (Calculator) ships an update every 2 months, and Surfed Pro Browser & Bookmark every 2 months. Most recently, Kalkulilo (Calculator) was updated on November 10, 2026 and Surfed Pro Browser & Bookmark on November 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*