# Foldmeter vs DuoCorder+

The clearest difference is price: Foldmeter at $0.99 against DuoCorder+'s $2.99. DuoCorder+'s advantage is iOS requirement (17.0 vs 26.6). On ads, in-app purchases and device support there is nothing between them.

Foldmeter costs $0.99 and DuoCorder+ $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Foldmeter | DuoCorder+ |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/duocorder-plus/id6822322155/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | — | Paid |
| Size | 1 MB | 1 MB |
| Requires iOS | 26.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [appRabauken GbR](https://appshunter.io/developer/1050264132) | [James Roche](https://appshunter.io/developer/1896491450) |

## What reviewers say

### Foldmeter

[App page](https://appshunter.io/ios/app/foldmeter-hinge-angle-and-ruler/id6820960845)

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

**In-app purchases:** none


### DuoCorder+

[App page](https://appshunter.io/ios/app/duocorder-plus/id6822322155)

Transform your iPhone into a handheld sensor scanner. Explore environmental data like sound, air pressure, and magnetic fields with a retro-futuristic interface. Set custom alerts and track 24-hour trends for your sensor readings.

**Highlights:** Live sensor scanning, Retro-futuristic display, Customizable alerts, 24-hour trend charts, Metal detector mode, Data export (CSV), Privacy-focused design

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

**In-app purchases:** none


## Frequently asked questions

### Is Foldmeter free?

Foldmeter costs $0.99, with no in-app purchases.

### Is DuoCorder+ free?

DuoCorder+ costs $2.99, with no in-app purchases.

### Do Foldmeter or DuoCorder+ have ads?

Neither Foldmeter nor DuoCorder+ 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.*