# T Nine vs Robertt

The clearest difference is rating: T Nine at 4.5 against Robertt's 4.0. Robertt's advantage is review sentiment (67% vs 50%) and iOS requirement (11.0 vs 13.0). On price, ratings volume, update cadence and ads there is nothing between them.

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

T Nine holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 11 and 17 respectively. Written reviews complicate that: 50% of T Nine's written reviews are positive against 67% of Robertt's, so the app with the better star average is not the one people write more warmly about.

T Nine ships an update fortnightly, Robertt every 2 weeks. The most recent releases landed on August 17, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | T Nine | Robertt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (11 ratings)](https://appshunter.io/ios/app/t-nine/id1465078867/reviews)** | [4.0 (17 ratings)](https://appshunter.io/ios/app/robertt/id1473930784/reviews) |
| Number of ratings | 11 | **17** |
| Positive reviews | 50.0% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 weeks |
| Monetization | Free | Free |
| Size | 158 MB | 192 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Robosen Robotics (ShenZhen) Co., Ltd.](https://appshunter.io/developer/1459364206) | [红 苗](https://appshunter.io/developer/1473580071) |

## What reviewers say

### T Nine

[App page](https://appshunter.io/ios/app/t-nine/id1465078867)

Control your T Nine robot via Bluetooth with a comprehensive remote. Explore a vast library of actions and utilize two programming functions to create custom experiences. Enjoy interactive play and unleash your creativity.

**Highlights:** Bluetooth remote control, Massive action library, Two programming functions, Customizable robot behavior, Interactive play

**Features:** macOS Compatibility

**In-app purchases:** none


### Robertt

[App page](https://appshunter.io/ios/app/robertt/id1473930784)

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.

**Highlights:** Bluetooth connectivity, Remote control interface, Singing functionality, Dancing capabilities, Dance editing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is T Nine free?

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

### Is Robertt free?

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

### Which has better reviews, T Nine or Robertt?

T Nine is rated higher. T Nine averages 4.5 out of 5 from 11 ratings, while Robertt averages 4.0 from 17 ratings.

### Do T Nine or Robertt have ads?

Neither T Nine nor Robertt shows ads.

### Which is updated more often, T Nine or Robertt?

T Nine ships an update fortnightly, and Robertt every 2 weeks. Most recently, T Nine was updated on August 17, 2026 and Robertt on September 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.*