# Blockly for Dash & Dot robots vs Merge Object Viewer

The clearest difference is in-app purchases: Blockly for Dash & Dot robots at none against Merge Object Viewer's 4. Blockly for Dash & Dot robots also leads on iOS requirement (12.0 vs 15.0). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Merge Object Viewer sells 4 in-app purchases, starting at $9.99 per month. Blockly for Dash & Dot robots asks for nothing beyond the download.

Merge Object Viewer holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 172 and 389 respectively. Written reviews complicate that: 53% of Blockly for Dash & Dot robots's written reviews are positive against 48% of Merge Object Viewer's, so the app with the better star average is not the one people write more warmly about.

Blockly for Dash & Dot robots ships an update every 2 months, Merge Object Viewer monthly. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Blockly for Dash & Dot robots | Merge Object Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (172 ratings)](https://appshunter.io/ios/app/blockly-for-dash-and-dot-robots/id906750147/reviews) | **[4.5 (389 ratings)](https://appshunter.io/ios/app/merge-object-viewer/id1367544362/reviews)** |
| Number of ratings | 172 | **389** |
| Positive reviews | **53.3% of reviews** | 47.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 142 MB | 414 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MORAVIA Consulting, spol. s r.o.](https://appshunter.io/developer/1673101600) | [Merge Apps](https://appshunter.io/developer/1253049593) |

## What reviewers say

### Blockly for Dash & Dot robots

[App page](https://appshunter.io/ios/app/blockly-for-dash-and-dot-robots/id906750147)

Learn coding fundamentals through interactive play with robots. This app uses a visual drag-and-drop interface to create programs for Dash and Dot robots, offering challenges and creative freedom for young learners.

**Highlights:** Visual drag-and-drop coding, Robot programming challenges, Create custom robot behaviors, Learn coding concepts (sequencing, loops, variables), Bluetooth connectivity to robots, Playful storylines and puzzles

**Features:** macOS Compatibility

**In-app purchases:** none


### Merge Object Viewer

[App page](https://appshunter.io/ios/app/merge-object-viewer/id1367544362)

Explore hundreds of 3D digital teaching aids with this app. Students can interact with models of rocks, mammals, cells, and more. The app also allows users to upload and view their own 3D objects on a compatible device.

**Highlights:** Hundreds of 3D teaching aids, Interactive 3D models, Learn about science and biology, Upload and view custom 3D objects, Hands-on digital learning

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Object Viewer Premium Monthly | $9.99 | per month |
| Merge EDU Individual | $9.99 | per month |
| Object Viewer Premium Annual | $99.99 | per year |
| Merge EDU Individual | $99.99 | per year |

**What reviewers like**

- 🚀 Engaging AR STEM tool
- 👍 Intuitive interface
- 👍 Seamless object merging
- 👍 Extensive file format support
- 👍 Convenient sharing options

**What reviewers complain about**

- 🐛 Frequent crashes
- 🐛 Slow rendering/loading
- 🐛 Compatibility issues on older devices
- 🔒 Paywall for full access
- 🐛 Unstable login/account management

**Reported bugs**

- Objects not loading or displaying incorrectly
- App freezing or closing unexpectedly
- Labeling/annotation issues with 3D objects
- Compatibility problems on iPads and older iOS versions

**Requested features**

- Adjustable lighting for 3D objects
- Ability to snap objects together
- Camera button for capturing scenes
- Restore VR support
- More free 3D content options


## Frequently asked questions

### Is Blockly for Dash & Dot robots free?

Blockly for Dash & Dot robots is free to download, with no in-app purchases.

### Is Merge Object Viewer free?

Merge Object Viewer is free to download, with in-app purchases available.

### Which has better reviews, Blockly for Dash & Dot robots or Merge Object Viewer?

Merge Object Viewer is rated higher. Blockly for Dash & Dot robots averages 4.3 out of 5 from 172 ratings, while Merge Object Viewer averages 4.5 from 389 ratings.

### Do Blockly for Dash & Dot robots or Merge Object Viewer have ads?

Neither Blockly for Dash & Dot robots nor Merge Object Viewer shows ads.

### Which is updated more often, Blockly for Dash & Dot robots or Merge Object Viewer?

Blockly for Dash & Dot robots ships an update every 2 months, and Merge Object Viewer monthly. Most recently, Blockly for Dash & Dot robots was updated on October 24, 2026 and Merge Object Viewer on October 29, 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.*