# Polymer vs 凯力朗智能

The clearest difference is rating: Polymer at 4.7 against 凯力朗智能's 1.0. Polymer also leads on ratings volume (1.7K vs 1) and update cadence (monthly vs every 5 months). 凯力朗智能's advantage is in-app purchases (none vs 4) and iOS requirement (8.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Polymer sells 4 one-off in-app purchases. 凯力朗智能 asks for nothing beyond the download.

Polymer holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Polymer has 1.7K ratings behind it against 1, so its average is the more settled of the two.

Polymer ships an update monthly, 凯力朗智能 every 5 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | Polymer | 凯力朗智能 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.7K ratings)](https://appshunter.io/ios/app/polymer-octoprint-3d-printing/id1260531874/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/id1448073060/reviews) |
| Number of ratings | **1.7K** | 1 |
| Positive reviews | 80.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 49 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lachlan Bell](https://appshunter.io/developer/1260531873) | [Wenzhou Yunjia Network Technology Co., Ltd.](https://appshunter.io/developer/1448073059) |

## What reviewers say

### Polymer

[App page](https://appshunter.io/ios/app/polymer-octoprint-3d-printing/id1260531874)

Manage your 3D printer remotely from your mobile device. Monitor print progress with live camera feeds, view status updates, and control printer functions. Offers an optional upgrade for advanced features and multiple printer support.

**Highlights:** Live camera streaming, Print status monitoring, Start, stop, and pause prints, Control heater temperatures, File management and viewing, Remote access integration

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kind Tip | $2.99 | one-time |
| Polymer Pro | $9.99 | one-time |
| Generous Tip | $9.99 | one-time |
| Incredible Tip | $14.99 | one-time |

**What reviewers like**

- 👍 Excellent interface and design
- 🚀 Responsive and efficient
- 💡 Great features for controlling 3D printers
- 🔒 Secure connection to OctoPrint
- 🎨 Beautiful and clean UI

**What reviewers complain about**

- 🐛 Occasional connectivity issues
- 🔍 Missing some advanced features like plugins
- ⏱️ Slow response times in some cases
- 🔔 Lack of notifications for print completion

**Reported bugs**

- Camera feed not working consistently
- Settings screen not loading properly on some devices
- Printer connection issues after app updates

**Requested features**

- Landscape mode support for tablets
- Temperature graphs and print progress indicators
- Ability to remotely control printer via VPN
- Push notifications for print status updates


### 凯力朗智能

[App page](https://appshunter.io/ios/app/id1448073060)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Polymer free?

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

### Is 凯力朗智能 free?

凯力朗智能 is free to download, with no in-app purchases.

### Which has better reviews, Polymer or 凯力朗智能?

Polymer is rated higher. Polymer averages 4.7 out of 5 from 1.7K ratings, while 凯力朗智能 averages 1.0 from 1 ratings.

### Do Polymer or 凯力朗智能 have ads?

Neither Polymer nor 凯力朗智能 shows ads.

### Which is updated more often, Polymer or 凯力朗智能?

Polymer ships an update monthly, and 凯力朗智能 every 5 months. Most recently, Polymer was updated on November 2, 2026 and 凯力朗智能 on November 2, 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.*