# PolyFill vs Bluetooth Control

The clearest difference is in-app purchases: Bluetooth Control at none against PolyFill's 3. Bluetooth Control also leads on ads (none vs shown). PolyFill's advantage is update cadence (every 6 months vs every 111 months) and iOS requirement (14.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. PolyFill sells 3 one-off in-app purchases. Bluetooth Control asks for nothing beyond the download.

PolyFill ships an update every 6 months, Bluetooth Control every 111 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | PolyFill | Bluetooth Control |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/polyfill/id987147033/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 months** | Every 111 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 15 MB | 2 MB |
| Requires iOS | **14.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Kelly Technology Inc.](https://appshunter.io/developer/393931941) | [A B](https://appshunter.io/developer/1024482339) |

## What reviewers say

### PolyFill

[App page](https://appshunter.io/ios/app/polyfill/id987147033)

A brain-training puzzle game where you race against the clock to assemble geometric shapes. Earn points based on difficulty and speed, and compete on leaderboards. Unlock additional complexity and scoring through optional in-app purchases.

**Highlights:** Brain-training puzzles, Timed challenges, Geometric shape assembly, Scoring based on difficulty and time, Game Center leaderboards, Achievement awards, In-app purchases for complexity

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads. | $1.99 | one-time |
| Unlock level 2 | $1.99 | one-time |
| Unlock level 3 | $1.99 | one-time |


### Bluetooth Control

[App page](https://appshunter.io/ios/app/bluetooth-control/id1224148948)

This application allows users to control a specific Bluetooth receiver integrated into fischertechnik models. It enables interaction with various new fischertechnik constructions released since March 2017.

**Highlights:** Control Bluetooth receiver, Works with fischertechnik models, Enables interaction with constructions

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PolyFill free?

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

### Is Bluetooth Control free?

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

### Do PolyFill or Bluetooth Control have ads?

PolyFill shows ads; Bluetooth Control does not.

### Which is updated more often, PolyFill or Bluetooth Control?

PolyFill ships an update every 6 months, and Bluetooth Control every 111 months. Most recently, PolyFill was updated on November 1, 2026 and Bluetooth Control on November 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*