# Heat Exchanger Performance vs Fastener Dimensions

The clearest difference is iOS requirement: Fastener Dimensions at 12.0 against Heat Exchanger Performance's 14.3. On price, review sentiment, update cadence and ads there is nothing between them.

Heat Exchanger Performance costs $4.99 and Fastener Dimensions $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Heat Exchanger Performance | Fastener Dimensions |
| --- | --- | --- |
| Price | $4.99 | $4.99 |
| Rating | — | **[2.3 (3 ratings)](https://appshunter.io/ios/app/fastener-dimensions/id6476143105/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | Every 6 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 62 MB |
| Requires iOS | 14.3 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kaup Shenoy Associates](https://appshunter.io/developer/460148822) | [Ajay Gorasiya](https://appshunter.io/developer/1455174866) |

## What reviewers say

### Heat Exchanger Performance

[App page](https://appshunter.io/ios/app/heat-exchanger-performance/id499929799)

Evaluate shell and tube heat exchanger performance, including overall heat transfer U-coefficient and maintenance needs based on performance changes. Save and reload multiple heat exchanger data sets for continuous monitoring.

**Highlights:** Evaluate overall heat transfer U-coefficient, Determine maintenance requirements, Save and reload multiple heat exchanger data, Select common industrial fluids, Create custom fluid properties, Edit data in SI and USCS units, Compute heat transfer area

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

**In-app purchases:** none


### Fastener Dimensions

[App page](https://appshunter.io/ios/app/fastener-dimensions/id6476143105)

This app provides a comprehensive guide to various types of fasteners, including bolts, nuts, pins, and washers. Explore diverse options and dimensions to meet specific project requirements and enhance your understanding of these essential components.

**Highlights:** Dimensions of bolts, nuts, pins, and washers, Variety of bolt types (e.g., countersunk, hex head flange), Range of nut types (e.g., hex, wing), Intricacies of pin types (e.g., clevis, cylindrical, tapered), Choices of washer types (e.g., plain, spring), Guide for project requirements

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

**In-app purchases:** none


## Frequently asked questions

### Is Heat Exchanger Performance free?

Heat Exchanger Performance costs $4.99, with no in-app purchases.

### Is Fastener Dimensions free?

Fastener Dimensions costs $4.99, with no in-app purchases.

### Do Heat Exchanger Performance or Fastener Dimensions have ads?

Neither Heat Exchanger Performance nor Fastener Dimensions shows ads.

### Which is updated more often, Heat Exchanger Performance or Fastener Dimensions?

Heat Exchanger Performance ships an update every 6 months, and Fastener Dimensions every 6 months. Most recently, Heat Exchanger Performance was updated on November 1, 2026 and Fastener Dimensions on November 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.*