# Knots 3D vs Orcinus

The clearest difference is review sentiment: Knots 3D at 98% against Orcinus's 20%. Knots 3D also leads on rating (4.9 vs 3.5) and ratings volume (13K vs 2). Orcinus's advantage is price (Free vs $5.99) and update cadence (every 5 days vs every 2 weeks). On ads, in-app purchases, monetization model and device support there is nothing between them.

Orcinus is free to download; Knots 3D costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Knots 3D holds the better App Store score, 4.9 against 3.5. That said, the two scores are not equally well evidenced: Knots 3D has 13K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 98% of Knots 3D's written reviews are positive against 20% of Orcinus's.

Knots 3D ships an update every 2 weeks, Orcinus every 5 days. The most recent releases landed on October 20, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Knots 3D | Orcinus |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[4.9 (13K ratings)](https://appshunter.io/ios/app/knots-3d/id453571750/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/orcinus/id1659221919/reviews) |
| Number of ratings | **13K** | 2 |
| Positive reviews | **97.8% of reviews** | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free | Free |
| Best chart rank | **#2** | — |
| Size | 520 MB | 45 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nynix](https://appshunter.io/developer/425939481) | [Lewis Stagnetto](https://appshunter.io/developer/1387917269) |

## What reviewers say

### Knots 3D

[App page](https://appshunter.io/ios/app/knots-3d/id453571750)

**Currently charting:** #2 Top Paid · Reference, #105 Top Paid (US App Store)

Master over 220 essential knots with detailed 3D animations and offline access. This app is perfect for learning rope work for activities like fishing, climbing, and boating, offering interactive tutorials and customizable organization features.

**Highlights:** 225+ knots in 12+ categories, Offline access, no internet required, Interactive 3D knot animations, Rotate and scrub through knot tying, Customizable knot categories, Add personal notes and keywords, ABOK number cross-reference

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

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent instructions and animations
- 🚀 Adjustable speed control for learning
- 🔍 Ability to view knots from different angles
- 📚 Comprehensive knot library
- 💡 Detailed information on knot uses and history

**What reviewers complain about**

- 🐛 Favorites list disappearing after updates
- 💡 Desire for more splices and advanced knots
- 💡 Request for step-by-step instructions and ability to pause/rewind animations

**Reported bugs**

- Favorites list disappearing after updates

**Requested features**

- Add more splices and advanced knots
- Implement step-by-step instructions and ability to pause/rewind animations
- Add a continuous loop option for the knot animations
- Introduce a game mode or practice feature


### Orcinus

[App page](https://appshunter.io/ios/app/orcinus/id1659221919)

This app allows users to report and track Orca whale sightings globally. It facilitates data collection and sharing related to these marine mammals, developed in cooperation with research institutions.

**Highlights:** Report Orca whale sightings, Track Orca whale encounters, View global sighting data, Cooperation with research institutes, Marine mammal reporting

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Knots 3D free?

Knots 3D costs $5.99, with no in-app purchases.

### Is Orcinus free?

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

### Which has better reviews, Knots 3D or Orcinus?

Knots 3D is rated higher. Knots 3D averages 4.9 out of 5 from 13K ratings, while Orcinus averages 3.5 from 2 ratings.

### Do Knots 3D or Orcinus have ads?

Neither Knots 3D nor Orcinus shows ads.

### Which is updated more often, Knots 3D or Orcinus?

Knots 3D ships an update every 2 weeks, and Orcinus every 5 days. Most recently, Knots 3D was updated on October 20, 2026 and Orcinus on October 17, 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.*