# Number Line, by MLC vs DroneBlocks

The clearest difference is rating: Number Line, by MLC at 4.4 against DroneBlocks's 3.4. Number Line, by MLC also leads on review sentiment (67% vs 49%). DroneBlocks's advantage is update cadence (every 2 months vs every 13 months) and device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Number Line, by MLC holds the better App Store score, 4.4 against 3.4. Both are backed by a comparable volume of ratings — 15 and 58 respectively. Written reviews point the same way: 67% of Number Line, by MLC's written reviews are positive against 49% of DroneBlocks's.

Number Line, by MLC ships an update every 13 months, DroneBlocks every 2 months. Both last shipped on November 6, 2026.

## The numbers

| Metric | Number Line, by MLC | DroneBlocks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (15 ratings)](https://appshunter.io/ios/app/number-line-by-mlc/id751816884/reviews)** | [3.4 (58 ratings)](https://appshunter.io/ios/app/droneblocks/id1045826508/reviews) |
| Number of ratings | 15 | **58** |
| Positive reviews | **66.7% of reviews** | 48.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 7 MB | 85 MB |
| Requires iOS | 16.1 | **13.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [The Math Learning Center](https://appshunter.io/developer/1542700905) | [DroneBlocks, LLC](https://appshunter.io/developer/1024277072) |

## What reviewers say

### Number Line, by MLC

[App page](https://appshunter.io/ios/app/number-line-by-mlc/id751816884)

This app allows students to visualize number sequences and demonstrate mathematical strategies. It supports various number types and offers tools for annotation, problem-solving, and sharing work. Ideal for elementary classrooms and iPad learning environments.

**Highlights:** Visualize number sequences, Demonstrate counting, adding, subtracting, multiplying, dividing, Use whole numbers, fractions, decimals, or negative numbers, Add custom tick marks and labels, Hide and reveal numbers and jumps, Annotation and drawing tools, Save and share work

**Features:** macOS Compatibility

**In-app purchases:** none


### DroneBlocks

[App page](https://appshunter.io/ios/app/droneblocks/id1045826508)

Program drones using a block-based interface. Create custom flight paths, control camera functions, and execute missions with virtual joysticks. Supports various drone models and offers pre-flight checks for compliance.

**Highlights:** Block programming interface, Virtual joysticks for control, Pre-flight compliance checks, Camera and photo blocks, Telemetry data display, Offline mission storage, Support for Tello and DJI drones

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to code drone
- 👍 Great for educators
- 👍 Fun and engaging learning
- 👍 Potential for STEM programs
- 👍 Good for basic programming understanding

**What reviewers complain about**

- 🐛 Inconsistent performance
- 🐛 Frequent disconnections
- 🐛 Difficult to save/change missions
- 🐛 UI issues on small phones
- 🐛 App crashes frequently

**Reported bugs**

- App keeps crashing
- App breaks when trying to flip
- Drone blew up and smashed window
- App doesn't execute code
- App crashes after app crash

**Requested features**

- Add camera controls for Tello
- Allow local saving of missions
- Improve UI for smaller phones
- Add more login options for Chinese users
- Support for metric units


## Frequently asked questions

### Is Number Line, by MLC free?

Number Line, by MLC is free to download, with no in-app purchases.

### Is DroneBlocks free?

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

### Which has better reviews, Number Line, by MLC or DroneBlocks?

Number Line, by MLC is rated higher. Number Line, by MLC averages 4.4 out of 5 from 15 ratings, while DroneBlocks averages 3.4 from 58 ratings.

### Do Number Line, by MLC or DroneBlocks have ads?

Neither Number Line, by MLC nor DroneBlocks shows ads.

### Which is updated more often, Number Line, by MLC or DroneBlocks?

Number Line, by MLC ships an update every 13 months, and DroneBlocks every 2 months. Most recently, Number Line, by MLC was updated on November 6, 2026 and DroneBlocks on November 6, 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.*