# Key vs super simple to do list

The clearest difference is price: super simple to do list at Free against Key's $0.99. Key's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On ads and in-app purchases there is nothing between them.

super simple to do list is free to download; Key costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Key | super simple to do list |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/key-tone-decoder/id6738107351/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | Paid | — |
| Size | 1 MB | 1 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [NANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI](https://appshunter.io/developer/1674573382) | [Andeesh Mehdi Syed](https://appshunter.io/developer/1676226599) |

## What reviewers say

### Key

[App page](https://appshunter.io/ios/app/key-tone-decoder/id6738107351)

This application uses your device's microphone to capture and decode dual-tone multi-frequency (DTMF) signals in real-time. It displays the decoded numbers instantly on your screen, making it a useful tool for professionals and tech enthusiasts.

**Highlights:** Real-time DTMF signal decoding, Uses device microphone, Displays decoded numbers instantly, Suitable for professionals, Useful for tech enthusiasts

**Features:** macOS Compatibility

**In-app purchases:** none


### super simple to do list

[App page](https://appshunter.io/ios/app/super-simple-to-do-list/id6802551252)

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

**In-app purchases:** none


## Frequently asked questions

### Is Key free?

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

### Is super simple to do list free?

super simple to do list is free to download, with no in-app purchases.

### Do Key or super simple to do list have ads?

Neither Key nor super simple to do list 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.*