# IDC Spring Calculator vs CHI HubX

The clearest difference is rating: IDC Spring Calculator at 2.6 against CHI HubX's 1.3. IDC Spring Calculator also leads on review sentiment (22% vs 0%) and ratings volume (12 vs 3). CHI HubX's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

IDC Spring Calculator holds the better App Store score, 2.6 against 1.3. Both are backed by a comparable volume of ratings — 12 and 3 respectively. Written reviews point the same way: 22% of IDC Spring Calculator's written reviews are positive against 0% of CHI HubX's.

IDC Spring Calculator ships an update every 2 months, CHI HubX every 3 weeks. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | IDC Spring Calculator | CHI HubX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (12 ratings)](https://appshunter.io/ios/app/idc-spring-calculator/id970455550/reviews)** | [1.3 (3 ratings)](https://appshunter.io/ios/app/chi-hubx/id6502600367/reviews) |
| Number of ratings | **12** | 3 |
| Positive reviews | **22.2% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 1 MB | 176 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Zen Software, LLC](https://appshunter.io/developer/570584501) | [C.H.I. Overhead Doors, LLC](https://appshunter.io/developer/1744900387) |

## What reviewers say

### IDC Spring Calculator

[App page](https://appshunter.io/ios/app/idc-spring-calculator/id970455550)

This application allows users to engineer springs on demand. It provides access to a variety of spring types and materials, backed by a company with multiple manufacturing plants for efficient delivery.

**Highlights:** On-demand spring engineering, Variety of spring types, Multiple material options, Access to company manufacturing locations, Streamlined ordering process

**Features:** macOS Compatibility

**In-app purchases:** none


### CHI HubX

[App page](https://appshunter.io/ios/app/chi-hubx/id6502600367)

This business app allows C.H.I. dealers to easily access and transmit critical installation information from the field directly to their home office and C.H.I. It serves as a mobile extension of the HubX Operations Application.

**Highlights:** Field data transmission, Home office connectivity, Operations application companion, Information access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IDC Spring Calculator free?

IDC Spring Calculator is free to download, with no in-app purchases.

### Is CHI HubX free?

CHI HubX is free to download, with no in-app purchases.

### Which has better reviews, IDC Spring Calculator or CHI HubX?

IDC Spring Calculator is rated higher. IDC Spring Calculator averages 2.6 out of 5 from 12 ratings, while CHI HubX averages 1.3 from 3 ratings.

### Do IDC Spring Calculator or CHI HubX have ads?

Neither IDC Spring Calculator nor CHI HubX shows ads.

### Which is updated more often, IDC Spring Calculator or CHI HubX?

IDC Spring Calculator ships an update every 2 months, and CHI HubX every 3 weeks. Most recently, IDC Spring Calculator was updated on October 10, 2026 and CHI HubX on October 6, 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.*