# ISO Fits vs CADDaddy

The clearest difference is price: ISO Fits at Free against CADDaddy's $12.99. ISO Fits also leads on rating (4.2 vs 1.0) and ratings volume (6 vs 1). CADDaddy's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

ISO Fits is free to download; CADDaddy costs $12.99 up front. ISO Fits sells 1 one-off in-app purchase. CADDaddy asks for nothing beyond the download.

ISO Fits holds the better App Store score, 4.2 against 1.0. That said, the two scores are not equally well evidenced: ISO Fits has 6 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | ISO Fits | CADDaddy |
| --- | --- | --- |
| Price | **Free** | $12.99 |
| Rating | **[4.2 (6 ratings)](https://appshunter.io/ios/app/iso-fits/id396863755/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/caddaddy-cad-viewer/id6762544393/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | 94.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 66 MB | 22 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Trelleborg Sealing Solutions](https://appshunter.io/developer/396863758) | [Alan Agon](https://appshunter.io/developer/1866461030) |

## 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 |


### CADDaddy

[App page](https://appshunter.io/ios/app/caddaddy-cad-viewer/id6762544393)

View a wide range of CAD file formats on your iPhone or iPad without needing an account or subscription. Offers native gesture support, AR viewing, and export options. Ideal for professionals and enthusiasts needing to inspect designs on the go.

**Highlights:** Open STEP, DWG, DXF, FBX, 3MF, PLY, STL, IGES, OBJ, Native gesture support for touch devices, Full-color rendering with individual part display, Shaded, wireframe, and solid display modes, Section planes for slicing models, Point-to-point distance measurement, Export to STL, GLB, or USDZ, Augmented Reality (AR) viewing

**In-app purchases:** none


## Frequently asked questions

### Is ISO Fits free?

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

### Is CADDaddy free?

CADDaddy costs $12.99, with no in-app purchases.

### Which has better reviews, ISO Fits or CADDaddy?

ISO Fits is rated higher. ISO Fits averages 4.2 out of 5 from 6 ratings, while CADDaddy averages 1.0 from 1 ratings.

### Do ISO Fits or CADDaddy have ads?

Neither ISO Fits nor CADDaddy shows ads.

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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.*