# TWDIW vs Simple CF

The clearest difference is iOS requirement: TWDIW at 13.0 against Simple CF's 17.0. On price, update cadence, 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.

TWDIW ships an update every 3 weeks, Simple CF monthly. The most recent releases landed on September 14, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | TWDIW | Simple CF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 198 MB | 5 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [數位發展部](https://appshunter.io/developer/1759963812) | [ZEYAN LIN](https://appshunter.io/developer/6785373009) |

## What reviewers say

### TWDIW

[App page](https://appshunter.io/ios/app/twdiw/id6742222992)

**In-app purchases:** none


### Simple CF

[App page](https://appshunter.io/ios/app/simple-cf/id6785373007)

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

**In-app purchases:** none


## Frequently asked questions

### Is TWDIW free?

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

### Is Simple CF free?

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

### Do TWDIW or Simple CF have ads?

Neither TWDIW nor Simple CF shows ads.

### Which is updated more often, TWDIW or Simple CF?

TWDIW ships an update every 3 weeks, and Simple CF monthly. Most recently, TWDIW was updated on September 14, 2026 and Simple CF on September 9, 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.*