# INVT Pump vs Cable Size Calculators

The clearest difference is price: INVT Pump at Free against Cable Size Calculators's $3.99. INVT Pump also leads on iOS requirement (9.0 vs 13.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

INVT Pump is free to download; Cable Size Calculators costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

INVT Pump ships an update every 4 months, Cable Size Calculators every 3 months. Both last shipped on September 30, 2026.

## The numbers

| Metric | INVT Pump | Cable Size Calculators |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Size | 46 MB | 26 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [深圳市英威腾电气股份有限公司](https://appshunter.io/developer/1012943436) | [Kantaben Gorasiya](https://appshunter.io/developer/1640260396) |

## What reviewers say

### INVT Pump

[App page](https://appshunter.io/ios/app/invt-pump/id1148890283)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cable Size Calculators

[App page](https://appshunter.io/ios/app/cable-size-calculators/id6471071271)

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

**In-app purchases:** none


## Frequently asked questions

### Is INVT Pump free?

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

### Is Cable Size Calculators free?

Cable Size Calculators costs $3.99, with no in-app purchases.

### Do INVT Pump or Cable Size Calculators have ads?

Neither INVT Pump nor Cable Size Calculators shows ads.

### Which is updated more often, INVT Pump or Cable Size Calculators?

INVT Pump ships an update every 4 months, and Cable Size Calculators every 3 months. Most recently, INVT Pump was updated on September 30, 2026 and Cable Size Calculators on September 30, 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.*