# GARDCO Viscosity Calc vs AHSG Loyalty Program

GARDCO Viscosity Calc and AHSG Loyalty Program are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

GARDCO Viscosity Calc ships an update every 3 weeks, AHSG Loyalty Program fortnightly. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | GARDCO Viscosity Calc | AHSG Loyalty Program |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/gardco-viscosity-calc/id1488629531/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 6 MB | 87 MB |
| Requires iOS | 13.4 | **12.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [BYK Gardner](https://appshunter.io/developer/1488629530) | [AL HASSAN SWITCHGEAR MANUFACTURING CO LLC](https://appshunter.io/developer/1708498268) |

## 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


### AHSG Loyalty Program

[App page](https://appshunter.io/ios/app/ahsg-loyalty-program/id6748900334)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GARDCO Viscosity Calc free?

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

### Is AHSG Loyalty Program free?

AHSG Loyalty Program is free to download, with no in-app purchases.

### Do GARDCO Viscosity Calc or AHSG Loyalty Program have ads?

Neither GARDCO Viscosity Calc nor AHSG Loyalty Program shows ads.

### Which is updated more often, GARDCO Viscosity Calc or AHSG Loyalty Program?

GARDCO Viscosity Calc ships an update every 3 weeks, and AHSG Loyalty Program fortnightly. Most recently, GARDCO Viscosity Calc was updated on October 3, 2026 and AHSG Loyalty Program on October 7, 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.*