# Crazyflie 2 vs Scentience

The clearest difference is review sentiment: Scentience at 100% against Crazyflie 2's 50%. Scentience also leads on rating (5.0 vs 2.7) and update cadence (monthly vs every 13 months). Crazyflie 2's advantage is iOS requirement (12.0 vs 17.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Scentience holds the better App Store score, 5.0 against 2.7. Both are backed by a comparable volume of ratings — 6 and 12 respectively. Written reviews point the same way: 50% of Crazyflie 2's written reviews are positive against 100% of Scentience's.

Crazyflie 2 ships an update every 13 months, Scentience monthly. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Crazyflie 2 | Scentience |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (6 ratings)](https://appshunter.io/ios/app/crazyflie-2/id946151480/reviews) | **[5.0 (12 ratings)](https://appshunter.io/ios/app/scentience/id6741092923/reviews)** |
| Number of ratings | 6 | **12** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Monthly** |
| Monetization | Free | Free |
| Size | 8 MB | 1.7 GB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Bitcraze](https://appshunter.io/developer/946151479) | [Kordel France](https://appshunter.io/developer/1215137099) |

## What reviewers say

### Crazyflie 2

[App page](https://appshunter.io/ios/app/crazyflie-2/id946151480)

Control a palm-sized, open-source quadcopter directly from your iOS device. Utilize on-screen joysticks or phone tilting for flight. Customize control sensitivity and modes, and update the drone's firmware.

**Highlights:** Bluetooth low energy connectivity, On-screen joystick controls, Phone tilting flight control, Configurable control sensitivity, Configurable control modes, Firmware updates

**Features:** macOS Compatibility

**In-app purchases:** none


### Scentience

[App page](https://appshunter.io/ios/app/scentience/id6741092923)

Visualize and interpret olfactory data from specialized devices. This tool offers real-time scent analysis, AI-powered source localization, and device calibration, all while prioritizing user privacy with offline functionality.

**Highlights:** Real-time olfaction data visualization, AI-powered scent source localization, Automatic device calibration, Offline operation for privacy, Multi-device swarming coordination, Chemical compound identification

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Crazyflie 2 free?

Crazyflie 2 is free to download, with no in-app purchases.

### Is Scentience free?

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

### Which has better reviews, Crazyflie 2 or Scentience?

Scentience is rated higher. Crazyflie 2 averages 2.7 out of 5 from 6 ratings, while Scentience averages 5.0 from 12 ratings.

### Do Crazyflie 2 or Scentience have ads?

Neither Crazyflie 2 nor Scentience shows ads.

### Which is updated more often, Crazyflie 2 or Scentience?

Crazyflie 2 ships an update every 13 months, and Scentience monthly. Most recently, Crazyflie 2 was updated on October 24, 2026 and Scentience on October 30, 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.*