# Solaflex vs Radtke+

The clearest difference is update cadence: Solaflex at monthly against Radtke+'s every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Solaflex ships an update monthly, Radtke+ every 3 months. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Solaflex | Radtke+ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free | — |
| Size | 36 MB | 43 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Solaflex GmbH](https://appshunter.io/developer/1593368377) | [Dr. Radtke CPM Chemisch-Physikalische Messtechnik AG](https://appshunter.io/developer/1735469468) |

## What reviewers say

### Solaflex

[App page](https://appshunter.io/ios/app/solaflex/id1593367985)

Streamline your design workflow by importing hand-drawn sketches directly into CAD software. This tool simplifies measurements, allows for detailed part splitting, and enables custom PDF exports with dimensions. Manage projects, add notes, and generate reports efficiently.

**Highlights:** DXF Export to CAD, Split into parts, Custom PDF with dimensions, Digital measurement sheet, Table export (CSV, templates), Freeform and coordinate drawing modes, Insert cutouts, Project and drawing management

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

**In-app purchases:** none


### Radtke+

[App page](https://appshunter.io/ios/app/radtke-plus/id6479295531)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Solaflex free?

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

### Is Radtke+ free?

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

### Do Solaflex or Radtke+ have ads?

Neither Solaflex nor Radtke+ shows ads.

### Which is updated more often, Solaflex or Radtke+?

Solaflex ships an update monthly, and Radtke+ every 3 months. Most recently, Solaflex was updated on October 6, 2026 and Radtke+ on October 14, 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.*