# ISO Fits vs SET & GO PRO

The clearest difference is in-app purchases: SET & GO PRO at none against ISO Fits's 1. SET & GO PRO also leads on iOS requirement (12.0 vs 15.6). ISO Fits's advantage is review sentiment (95% vs 67%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ISO Fits sells 1 one-off in-app purchase. SET & GO PRO asks for nothing beyond the download.

ISO Fits ships an update every 5 months, SET & GO PRO every 8 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | ISO Fits | SET & GO PRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (6 ratings)](https://appshunter.io/ios/app/iso-fits/id396863755/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | **94.6% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 8 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 66 MB | 12 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Trelleborg Sealing Solutions](https://appshunter.io/developer/396863758) | [Ritmo S.p.A.](https://appshunter.io/developer/1073931245) |

## What reviewers say

### ISO Fits

[App page](https://appshunter.io/ios/app/iso-fits/id396863755)

Calculate ISO fits and tolerances for shafts and bores. Supports metric and inch units, displays detailed fit definitions, and includes visual charts and educational videos.

**Highlights:** ISO fits calculation, Tolerance class display, Metric/inch unit switching, Tolerance charts, Updated YouTube videos

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version with complete ISO286 Standard | $1.99 | one-time |


### SET & GO PRO

[App page](https://appshunter.io/ios/app/set-and-go-pro/id1073931246)

This app assists butt welders by calculating welding parameters through guided steps. It includes a functional timer for the work cycle and supports various welding standards and materials.

**Highlights:** Guided parameter calculation, Welding machine selection, Standard and material choice, Functional timer with countdown, PDF parameter table creation, Multi-language support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ISO Fits free?

ISO Fits is free to download, with in-app purchases available.

### Is SET & GO PRO free?

SET & GO PRO is free to download, with no in-app purchases.

### Do ISO Fits or SET & GO PRO have ads?

Neither ISO Fits nor SET & GO PRO shows ads.

### Which is updated more often, ISO Fits or SET & GO PRO?

ISO Fits ships an update every 5 months, and SET & GO PRO every 8 months. Most recently, ISO Fits was updated on November 6, 2026 and SET & GO PRO on November 2, 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.*