# Let's Dance Robot vs Grain Flow

The clearest difference is in-app purchases: Let's Dance Robot at none against Grain Flow's 10. Grain Flow's advantage is iOS requirement (13.0 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Grain Flow sells 10 one-off in-app purchases. Let's Dance Robot asks for nothing beyond the download.

Let's Dance Robot ships an update weekly, Grain Flow every 2 weeks. The most recent releases landed on October 25, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Let's Dance Robot | Grain Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/lets-dance-robot/id6755852848/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Free | — |
| Size | 30 MB | 110 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 9+ |
| Developer | [NG Tech LLC](https://appshunter.io/developer/1856725996) | [宪霞 曾](https://appshunter.io/developer/1764425114) |

## What reviewers say

### Let's Dance Robot

[App page](https://appshunter.io/ios/app/lets-dance-robot/id6755852848)

Control a dancing robot with various interactive modes. Choose dances, customize your robot, or use gestures to make it move in real-time to different music tracks. Experience physics-driven animations and a dynamic visual aura.

**Highlights:** Classic dance mode, Live gesture control, Physics-driven robot animation, Three background music tracks, Offline gameplay, Robot customization

**Features:** macOS Compatibility

**In-app purchases:** none


### Grain Flow

[App page](https://appshunter.io/ios/app/grain-flow/id6758509920)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZERO FRICTION | $2.99 | one-time |
| SAMPLE BAG | $2.99 | one-time |
| SPECIAL OFFER | $4.99 | one-time |
| PURE FLOW BUNDLE | $6.99 | one-time |
| OPERATOR KIT | $9.99 | one-time |
| GRAIN BARREL | $10.99 | one-time |
| SUPPLY CRATE | $19.99 | one-time |
| BULK CARGO | $44.99 | one-time |
| SILO SURPLUS | $79.99 | one-time |
| THE GRAND SILO | $99.99 | one-time |


## Frequently asked questions

### Is Let's Dance Robot free?

Let's Dance Robot is free to download, with no in-app purchases.

### Is Grain Flow free?

Grain Flow is free to download, with in-app purchases available.

### Do Let's Dance Robot or Grain Flow have ads?

Both Let's Dance Robot and Grain Flow show ads.

### Which is updated more often, Let's Dance Robot or Grain Flow?

Let's Dance Robot ships an update weekly, and Grain Flow every 2 weeks. Most recently, Let's Dance Robot was updated on October 25, 2026 and Grain Flow on October 3, 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.*