# IDC Spring Calculator vs ReviewBuzz

The clearest difference is rating: ReviewBuzz at 4.6 against IDC Spring Calculator's 2.6. ReviewBuzz also leads on ratings volume (363 vs 12) and update cadence (every 3 weeks vs every 2 months). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

ReviewBuzz holds the better App Store score, 4.6 against 2.6. That said, the two scores are not equally well evidenced: ReviewBuzz has 363 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 22% of IDC Spring Calculator's written reviews are positive against 24% of ReviewBuzz's.

IDC Spring Calculator ships an update every 2 months, ReviewBuzz every 3 weeks. The most recent releases landed on October 10, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | IDC Spring Calculator | ReviewBuzz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (12 ratings)](https://appshunter.io/ios/app/idc-spring-calculator/id970455550/reviews) | **[4.6 (363 ratings)](https://appshunter.io/ios/app/reviewbuzz/id1432376181/reviews)** |
| Number of ratings | 12 | **363** |
| Positive reviews | 22.2% of reviews | **23.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 1 MB | 49 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zen Software, LLC](https://appshunter.io/developer/570584501) | [Reviewbuzz, Inc.](https://appshunter.io/developer/1428377801) |

## 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


### ReviewBuzz

[App page](https://appshunter.io/ios/app/reviewbuzz/id1432376181)

Effortlessly gather more customer reviews for your business and earn rewards. Send review requests after completing jobs, then track feedback, points, rewards, and your online reputation on the go. It's a fast, easy, and powerful tool for managing customer feedback.

**Highlights:** Send review requests, Track customer feedback, Monitor points and rewards, Manage online reputation, Fast and easy to use

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

**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 ReviewBuzz free?

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

### Which has better reviews, IDC Spring Calculator or ReviewBuzz?

ReviewBuzz is rated higher. IDC Spring Calculator averages 2.6 out of 5 from 12 ratings, while ReviewBuzz averages 4.6 from 363 ratings.

### Do IDC Spring Calculator or ReviewBuzz have ads?

Neither IDC Spring Calculator nor ReviewBuzz shows ads.

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

IDC Spring Calculator ships an update every 2 months, and ReviewBuzz every 3 weeks. Most recently, IDC Spring Calculator was updated on October 10, 2026 and ReviewBuzz on October 16, 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.*