# DoodleConnect vs Kotlin Programming Compiler

The clearest difference is in-app purchases: DoodleConnect at none against Kotlin Programming Compiler's 1. DoodleConnect also leads on ads (none vs shown) and ratings volume (56 vs 7). Kotlin Programming Compiler's advantage is iOS requirement (12.0 vs 15.0). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Kotlin Programming Compiler sells 1 one-off in-app purchase. DoodleConnect asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for DoodleConnect against 4.6 for Kotlin Programming Compiler. That said, the two scores are not equally well evidenced: DoodleConnect has 56 ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 56% of DoodleConnect's written reviews are positive against 63% of Kotlin Programming Compiler's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 21, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | DoodleConnect | Kotlin Programming Compiler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (56 ratings)](https://appshunter.io/ios/app/doodleconnect/id1176073180/reviews)** | [4.6 (7 ratings)](https://appshunter.io/ios/app/kotlin-programming-compiler/id1450611634/reviews) |
| Number of ratings | **56** | 7 |
| Positive reviews | 56.0% of reviews | **62.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 37 MB | 20 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Discovery Education Inc.](https://appshunter.io/developer/1557216359) | [Ketan Appa](https://appshunter.io/developer/576435759) |

## What reviewers say

### DoodleConnect

[App page](https://appshunter.io/ios/app/doodleconnect/id1176073180)

Monitor your child's educational development across multiple learning applications. Stay informed about their achievements, progress through the curriculum, and receive real-time updates on their learning journey.

**Highlights:** Instant progress notifications, View latest achievements, Track stars earned, Follow curriculum progress

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

**In-app purchases:** none

**What reviewers like**

- 👍 Great for tracking progress
- 👍 Makes learning fun
- 👍 Interactive and engaging
- 👍 Good for home education
- 👍 Provides insightful data

**What reviewers complain about**

- 🐛 Glitches and bugs
- 🐛 App crashes/switches off
- 🐛 Syncing issues between devices
- 🐛 Not synching with Doodle Connect
- 🐛 Latest update ruined app

**Reported bugs**

- Losing streak
- No synching between apps on different devices
- Not synching with Doodle Connect app
- Latest update ruined the app
- Can't understand children's results anymore

**Requested features**

- Bring back old version
- More comprehensive initial test
- More challenging levels
- Option to add extra material for all students
- Better graphing options


### Kotlin Programming Compiler

[App page](https://appshunter.io/ios/app/kotlin-programming-compiler/id1450611634)

Write and execute Kotlin code directly on your mobile device. This app is designed for learning and testing code snippets with features like syntax highlighting and a custom keyboard. It allows you to compile, run, and share your Kotlin files.

**Highlights:** Compile and run Kotlin programs, View program output and errors, Custom keyboard for easy input, Advanced source code editor, Syntax highlighting and line numbers, Open, save, import, and share files

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade | $2.99 | one-time |


## Frequently asked questions

### Is DoodleConnect free?

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

### Is Kotlin Programming Compiler free?

Kotlin Programming Compiler is free to download, with in-app purchases available.

### Which has better reviews, DoodleConnect or Kotlin Programming Compiler?

DoodleConnect is rated higher. DoodleConnect averages 4.7 out of 5 from 56 ratings, while Kotlin Programming Compiler averages 4.6 from 7 ratings.

### Do DoodleConnect or Kotlin Programming Compiler have ads?

Kotlin Programming Compiler shows ads; DoodleConnect does not.

### Which is updated more often, DoodleConnect or Kotlin Programming Compiler?

DoodleConnect ships an update every 2 months, and Kotlin Programming Compiler every 2 months. Most recently, DoodleConnect was updated on September 21, 2026 and Kotlin Programming Compiler on August 16, 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.*