# Super Simple D vs SwitchPDF

The clearest difference is update cadence: SwitchPDF at every 9 days against Super Simple D's every 6 weeks. SwitchPDF also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

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

Super Simple D ships an update every 6 weeks, SwitchPDF every 9 days. The most recent releases landed on September 18, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Super Simple D | SwitchPDF |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Monetization | Free | — |
| Size | 19 MB | 8 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Techin Park](https://appshunter.io/developer/906432484) | [GwanRyel Lee](https://appshunter.io/developer/1401126212) |

## What reviewers say

### Super Simple D

[App page](https://appshunter.io/ios/app/super-simple-d-day/id6748572271)

Track important life events with elegant countdown displays and smart notifications. Create unlimited events, customize their appearance, and receive timely alerts to never miss a special occasion. Personalize themes, fonts, and languages for a tailored experience.

**Highlights:** Unlimited event creation, Customizable countdown displays, Intelligent notifications, Lunar calendar support, Dark and light themes, Secure backup and restore

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

**In-app purchases:** none


### SwitchPDF

[App page](https://appshunter.io/ios/app/switchpdf-image-to-pdf/id6794580971)

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

**In-app purchases:** none


## Frequently asked questions

### Is Super Simple D free?

Super Simple D is free to download, with no in-app purchases.

### Is SwitchPDF free?

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

### Do Super Simple D or SwitchPDF have ads?

Neither Super Simple D nor SwitchPDF shows ads.

### Which is updated more often, Super Simple D or SwitchPDF?

Super Simple D ships an update every 6 weeks, and SwitchPDF every 9 days. Most recently, Super Simple D was updated on September 18, 2026 and SwitchPDF on September 25, 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.*