# Sleipnir Mobile vs KuCalc3

The clearest difference is update cadence: KuCalc3 at daily against Sleipnir Mobile's every 6 weeks. KuCalc3 also leads on iOS requirement (15.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sleipnir Mobile ships an update every 6 weeks, KuCalc3 daily. The most recent releases landed on October 20, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Sleipnir Mobile | KuCalc3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.6 (15 ratings)](https://appshunter.io/ios/app/sleipnir-mobile/id404732112/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 67.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Daily** |
| Monetization | Free | — |
| Size | 22 MB | 19 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Fenrir Inc.](https://appshunter.io/developer/318578225) | [Mineaki Sakatoku](https://appshunter.io/developer/1674976728) |

## What reviewers say

### Sleipnir Mobile

[App page](https://appshunter.io/ios/app/sleipnir-mobile/id404732112)

This web browser allows you to clip and organize content from web pages into "Scrapbooks." It offers efficient tab management with smooth gestures and automatically checks your favorite sites for fresh updates.

**Highlights:** Clip and organize web content with Scrapbooks, Effortless tab switching with Thumbroll, Quickly close tabs with FlickWipe gesture, Open links in the background with Hold And Go, Intuitive gesture controls for tab management, Discover new content with automatic site updates, Organize tabs into groups, Instant search by highlighting text

**In-app purchases:** none

**What reviewers like**

- 👍 Charming and useful scrapbook feature
- 🚀 Simple and magical browsing experience
- 🚀 Great tab management and gesture operation
- 🚀 Fastest and best mobile browser
- 👍 Excellent feature-packed browser

**What reviewers complain about**

- 🐛 Terrible new design and UI
- 🐛 Slow, laggy, and crashes often
- 🐛 Confusing and hard to navigate
- 🐛 Bookmarks and tab management issues
- 🐛 Buggy and unreliable

**Reported bugs**

- Freezing and crashing issues
- Tab management and closing problems
- Compatibility issues with older devices
- Unreliable web service integration

**Requested features**

- Dark mode option
- Bookmark sync with Safari
- Ability to hide bottom toolbar
- Improved search and address bar functionality
- More customization and settings options


### KuCalc3

[App page](https://appshunter.io/ios/app/kucalc3/id6805388550)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sleipnir Mobile free?

Sleipnir Mobile is free to download, with no in-app purchases.

### Is KuCalc3 free?

KuCalc3 is free to download, with no in-app purchases.

### Do Sleipnir Mobile or KuCalc3 have ads?

Neither Sleipnir Mobile nor KuCalc3 shows ads.

### Which is updated more often, Sleipnir Mobile or KuCalc3?

Sleipnir Mobile ships an update every 6 weeks, and KuCalc3 daily. Most recently, Sleipnir Mobile was updated on October 20, 2026 and KuCalc3 on October 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.*