# Fastener Calc vs eNet

The clearest difference is price: eNet at Free against Fastener Calc's $2.99. Fastener Calc's advantage is iOS requirement (8.0 vs 16.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

eNet is free to download; Fastener Calc costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Fastener Calc ships an update every 4 months, eNet every 5 months. The most recent releases landed on October 20, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Fastener Calc | eNet |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/fastener-calc/id388420104/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | Paid | — |
| Size | 8 MB | 3 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bossard AG](https://appshunter.io/developer/388420107) | [vgbe energy e.V.](https://appshunter.io/developer/1533792244) |

## What reviewers say

### Fastener Calc

[App page](https://appshunter.io/ios/app/fastener-calc/id388420104)

This app provides engineers, technicians, and students with essential tools for bolted joint development. It includes converters for various units and geometrical and mechanical calculators for dimensioning and design in joining technology.

**Highlights:** Unit converters (length, torque, pressure, force), Metric-imperial fastener conversion, Drill hole size calculator, Tapping screw pilot hole design, Bolt size and property class estimation, Disc spring calculator, Thread engagement length calculator

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

**In-app purchases:** none


### eNet

[App page](https://appshunter.io/ios/app/enet/id1533792242)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fastener Calc free?

Fastener Calc costs $2.99, with no in-app purchases.

### Is eNet free?

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

### Do Fastener Calc or eNet have ads?

Neither Fastener Calc nor eNet shows ads.

### Which is updated more often, Fastener Calc or eNet?

Fastener Calc ships an update every 4 months, and eNet every 5 months. Most recently, Fastener Calc was updated on October 20, 2026 and eNet on October 4, 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.*