# IDC Spring Calculator vs Multi Sales

The clearest difference is review sentiment: Multi Sales at 100% against IDC Spring Calculator's 22%. Multi Sales also leads on rating (5.0 vs 2.6) and iOS requirement (15.0 vs 17.0). IDC Spring Calculator's advantage is update cadence (every 2 months vs every 4 months) and ratings volume (12 vs 3). 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.

Multi Sales holds the better App Store score, 5.0 against 2.6. 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 100% of Multi Sales's.

IDC Spring Calculator ships an update every 2 months, Multi Sales every 4 months. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | IDC Spring Calculator | Multi Sales |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (12 ratings)](https://appshunter.io/ios/app/idc-spring-calculator/id970455550/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/multi-sales/id6443411840/reviews)** |
| Number of ratings | **12** | 3 |
| Positive reviews | 22.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 1 MB | 29 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) | [Billtrust](https://appshunter.io/developer/1454713057) |

## 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


### Multi Sales

[App page](https://appshunter.io/ios/app/multi-sales/id6443411840)

This business app allows distributors to create orders, view real-time pricing and availability, and access customer account information. Users can also scan barcodes, map branch locations, and review past orders and bids.

**Highlights:** Real-time pricing and availability, Order creation, Barcode scanning, Customer account information, Branch location mapping, Order history and bids

**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 Multi Sales free?

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

### Which has better reviews, IDC Spring Calculator or Multi Sales?

Multi Sales is rated higher. IDC Spring Calculator averages 2.6 out of 5 from 12 ratings, while Multi Sales averages 5.0 from 3 ratings.

### Do IDC Spring Calculator or Multi Sales have ads?

Neither IDC Spring Calculator nor Multi Sales shows ads.

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

IDC Spring Calculator ships an update every 2 months, and Multi Sales every 4 months. Most recently, IDC Spring Calculator was updated on October 10, 2026 and Multi Sales on October 3, 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.*