# NESS Programmer vs Equipment Service Tool

The clearest difference is in-app purchases: NESS Programmer at none against Equipment Service Tool's 2. NESS Programmer also leads on ads (none vs shown) and iOS requirement (15.6 vs 17.0). Equipment Service Tool's advantage is update cadence (every 2 months vs every 21 months). On price and device support there is nothing between them.

Both are free to download. Equipment Service Tool sells 2 in-app purchases, starting at $0.99 per month. NESS Programmer asks for nothing beyond the download.

NESS Programmer ships an update every 21 months, Equipment Service Tool every 2 months. The most recent releases landed on September 10, 2026 and July 8, 2026 respectively.

## The numbers

| Metric | NESS Programmer | Equipment Service Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/equipment-service-tool/id6473715814/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 21 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 7 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Iain Simpson](https://appshunter.io/developer/931621093) | [Kaleb Simpson](https://appshunter.io/developer/1719568849) |

## What reviewers say

### NESS Programmer

[App page](https://appshunter.io/ios/app/ness-programmer/id1110819438)

**In-app purchases:** none


### Equipment Service Tool

[App page](https://appshunter.io/ios/app/equipment-service-tool/id6473715814)

This utility app helps heavy equipment professionals diagnose issues with fault code searches and perform essential calculations. It includes tools for Ohm's Law, unit conversions, and refrigerant charging, supporting numerous manufacturers.

**Highlights:** Fault code search (J1939 SPN/FMI), Ohm's Law calculator, Unit conversion tool, Refrigerant charge calculator, Support for multiple heavy equipment manufacturers, Regular updates

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro - One Month | $0.99 | per month |
| Lifetime Unlock | $9.99 | one-time |


## Frequently asked questions

### Is NESS Programmer free?

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

### Is Equipment Service Tool free?

Equipment Service Tool is free to download, with in-app purchases available.

### Do NESS Programmer or Equipment Service Tool have ads?

Equipment Service Tool shows ads; NESS Programmer does not.

### Which is updated more often, NESS Programmer or Equipment Service Tool?

NESS Programmer ships an update every 21 months, and Equipment Service Tool every 2 months. Most recently, NESS Programmer was updated on September 10, 2026 and Equipment Service Tool on July 8, 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.*