Robertt vs K
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Robertt
Control a robot named Robert via Bluetooth for various interactive functions. You can remotely operate its movements, make it sing and dance, and even create custom dance routines.
- Bluetooth connectivity
- Remote control interface
- Singing functionality
- Dancing capabilities
- Dance editing
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Connecting with Robert through Data Bluetooth and Audio Bluetooth, Robert can be controlled by remote control page, singing, dancing for you, and editing dance for Robert.
K
Control a remote-controlled robot to perform various actions like walking, dancing, and stunts. Program custom dance routines using manual or block-based methods for educational and entertainment purposes.
- Remote robot control
- Perform stunts and dance moves
- Manual programming
- Block-based programming
- Program dance routines
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1. Remote-control Interstellar Scout to walk, perform stunts and dance moves, etc. 2. Program dance routines for Interstellar Scout through manual programming and block-based programming. Interstellar Scout is an educational series of products from Robosen, designed to bring a wealth of educational and entertainment content to everyone.
Screenshots
Verdict
The clearest difference is review sentiment: Robertt at 67% against K's 0%. Robertt also leads on rating (4.0 vs 2.8) and update cadence (every 2 weeks vs every 2 months). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Robertt holds the better App Store score, 4.0 against 2.8. Both are backed by a comparable volume of ratings — 17 and 10 respectively. Written reviews point the same way: 67% of Robertt's written reviews are positive against 0% of K's.
Robertt ships an update every 2 weeks, K every 2 months. The most recent releases landed on September 16, 2026 and June 3, 2026 respectively.
| Parameter | Robertt | K |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (17 ratings) — better | 2.8 (10 ratings) |
| Positive reviews | 66.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 17 — better | 10 |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 192 MB | 181 MB |
| Age rating | 4+ | 4+ |
| Developer | 红 苗 | Robosen Robotics |
Customer experience
Robertt
K
In-app purchases
Robertt
No in-app purchases
K
No in-app purchases
