# GARDCO Viscosity Calc vs Bambu Handy

The clearest difference is in-app purchases: GARDCO Viscosity Calc at none against Bambu Handy's 3. GARDCO Viscosity Calc also leads on review sentiment (100% vs 88%) and iOS requirement (13.4 vs 16.0). Bambu Handy's advantage is ratings volume (40K vs 6) and chart position (#28 vs unranked). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Bambu Handy sells 3 one-off in-app purchases. GARDCO Viscosity Calc asks for nothing beyond the download.

GARDCO Viscosity Calc holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Bambu Handy has 40K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 100% of GARDCO Viscosity Calc's written reviews are positive against 88% of Bambu Handy's.

GARDCO Viscosity Calc ships an update every 3 weeks, Bambu Handy every 11 days. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | GARDCO Viscosity Calc | Bambu Handy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/gardco-viscosity-calc/id1488629531/reviews)** | [4.8 (40K ratings)](https://appshunter.io/ios/app/bambu-handy/id1625671285/reviews) |
| Number of ratings | 6 | **40K** |
| Positive reviews | **100.0% of reviews** | 87.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#28** |
| Size | 6 MB | 331 MB |
| Requires iOS | **13.4** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [BYK Gardner](https://appshunter.io/developer/1488629530) | [上海轮廓科技有限公司](https://appshunter.io/developer/1672889549) |

## What reviewers say

### GARDCO Viscosity Calc

[App page](https://appshunter.io/ios/app/gardco-viscosity-calc/id1488629531)

Calculate kinematic viscosity or drain time for various viscosity cups. Input a known value and cup type to find the unknown, with visual indicators for valid measurement ranges. Helps select the appropriate cup for accurate testing.

**Highlights:** Calculate kinematic viscosity, Calculate drain time, Support for Gardco and BYK cups, Input drain time or viscosity, Visual range indicators, Error messages for out-of-range values

**Features:** macOS Compatibility

**In-app purchases:** none


### Bambu Handy

[App page](https://appshunter.io/ios/app/bambu-handy/id1625671285)

**Currently charting:** #28 Top Free · Utilities (US App Store)

Control your 3D printers remotely, monitor print status in real-time, and access a vast library of free 3D models. Discover, customize, and print designs with ease, and connect with a community of makers.

**Highlights:** Remote printer operation, Real-time print status monitoring, Access to free 3D models, Model customization, Live printing view, Timelapse video recording

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MakerLab Credits | $0.99 | one-time |
| MakerLab Credits | $2.99 | one-time |
| MakerLab Credits | $9.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 👍 Convenient remote control
- 🔍 Good monitoring capabilities
- 💡 Integration with Bambu ecosystem
- 🤖 Responsive and smooth interface

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔋 Battery drain
- 📱 Lacks iPad optimization
- 🔇 Unreliable notifications
- 🔒 Privacy concerns with cloud integration

**Reported bugs**

- App crashes or freezes
- Camera feed not working consistently
- Difficulty switching between printers
- Notifications not working as expected
- Syncing issues between app and printer

**Requested features**

- Add landscape mode support for iPad
- Implement slicer functionality within the app
- Allow printing from SD card or local storage
- Provide more customization options
- Improve camera feed reliability and quality


## Frequently asked questions

### Is GARDCO Viscosity Calc free?

GARDCO Viscosity Calc is free to download, with no in-app purchases.

### Is Bambu Handy free?

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

### Which has better reviews, GARDCO Viscosity Calc or Bambu Handy?

GARDCO Viscosity Calc is rated higher. GARDCO Viscosity Calc averages 5.0 out of 5 from 6 ratings, while Bambu Handy averages 4.8 from 40K ratings.

### Do GARDCO Viscosity Calc or Bambu Handy have ads?

Neither GARDCO Viscosity Calc nor Bambu Handy shows ads.

### Which is updated more often, GARDCO Viscosity Calc or Bambu Handy?

GARDCO Viscosity Calc ships an update every 3 weeks, and Bambu Handy every 11 days. Most recently, GARDCO Viscosity Calc was updated on November 3, 2026 and Bambu Handy on November 9, 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.*