Polymer vs Centripetal force
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Polymer
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.
- Live camera streaming
- Print status monitoring
- Start, stop, and pause prints
- Control heater temperatures
- File management and viewing
- Remote access integration
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(Formerly known as OctoClient for OctoPrint.) Polymer is the simplest way to manage a 3D printer, right from your mobile device. It works with any 3D printer with OctoPrint. You can start and monitor prints from anywhere*, and manage your printer with its advanced controls. It is built to be at home on iOS, sporting a beautiful, intuitive design. Here's what some users have to say: – "Works great. Love it. Wouldn’t own a 3D printer without it." – "Simple, straightforward, works like a charm." – "Must have for any 3D printer owner!" Extended feature list: MONITOR YOUR PRINTS ------------------------ • Live camera streaming: watch your print progress remotely. • Status monitoring: view the print completion, heater temperatures, time elapsed and estimated time remaining. • GCODE view (iPad only): follow your printer's moves as the print progresses. CONTROL YOUR PRINTER -------------------- • Start, stop, and pause prints • Home axes • Set heater temperatures • Extrude and retract filament • Set fan speeds • Set feed and flow rates • Disable motors • Multiple printer support • Add your own custom commands • Send and receive GCODE command messages to your printer • Use OctoPrint system commands • Control your printer's power supply FILE MANAGEMENT -------------------- • File viewer: view all your files and folders. See analysis results for your models (such as estimated print time), and view their print history • Create folders • Upload files to OctoPrint or your printer SD card REMOTE ACCESS ------------------ • Integration with the OctoEverywhere service for hassle-free, secure, remote access. ------------- * Using Polymer outside your local network requires configuring a remote access method. See polymer3d.app/remote for setup guides. This is an independent app that is neither affiliated with nor endorsed by the OctoPrint project or its creator. OctoPrint is a registered trademark owned by Gina Häußge.
Centripetal force
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This is a tool for calculating centripetal force, mainly including the following related calculations: 1.Centripetal force Centripetal force is the force that causes an object to move along a curved path. 2.Boyle's Law Boyle's Law Calculation 3.Charles' Law Charles' Law is an experimental gas law that involves the volume and temperature of a fixed mass gas that approaches an ideal gas when the pressure remains constant.
Screenshots
Verdict
The clearest difference is in-app purchases: Centripetal force at none against Polymer's 4. Centripetal force also leads on update cadence (every 3 days vs monthly) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Polymer sells 4 one-off in-app purchases. Centripetal force asks for nothing beyond the download.
Polymer ships an update monthly, Centripetal force every 3 days. The most recent releases landed on September 8, 2026 and December 22, 2025 respectively.
| Parameter | Polymer | Centripetal force |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.6K ratings) — better | — |
| Positive reviews | 80.7% of reviews | — |
| Number of ratings | 1.6K — better | — |
| Update frequency | Monthly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Lachlan Bell | Dhrishty Ghumar |
Bugs and requests
Polymer
Reported bugs
3 issues- Camera feed not working consistently
- Settings screen not loading properly on some devices
- Printer connection issues after app updates
Requested features
4 requests- Landscape mode support for tablets
- Temperature graphs and print progress indicators
- Ability to remotely control printer via VPN
- Push notifications for print status updates
Centripetal force
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Polymer
- Kind Tip$2.99
- Polymer Pro$9.99
- Generous Tip$9.99
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- Incredible Tip$14.99
Centripetal force
No in-app purchases








