# RegretShield vs Two & Four

The clearest difference is in-app purchases: RegretShield at none against Two & Four's 2. RegretShield also leads on ads (none vs shown) and update cadence (every 11 days vs every 3 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Two & Four sells 2 one-off in-app purchases. RegretShield asks for nothing beyond the download.

RegretShield ships an update every 11 days, Two & Four every 3 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | RegretShield | Two & Four |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 11 days** | Every 3 months |
| Size | 3 MB | 35 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kaldi Global Inc](https://appshunter.io/developer/6788901260) | [Dev-top LLC](https://appshunter.io/developer/1896763895) |

## What reviewers say

### RegretShield

[App page](https://appshunter.io/ios/app/regretshield/id6788901258)

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

**In-app purchases:** none


### Two & Four

[App page](https://appshunter.io/ios/app/two-and-four/id6789189291)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |
| Two & Four Pro | $6.99 | one-time |


## Frequently asked questions

### Is RegretShield free?

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

### Is Two & Four free?

Two & Four is free to download, with in-app purchases available.

### Do RegretShield or Two & Four have ads?

Two & Four shows ads; RegretShield does not.

### Which is updated more often, RegretShield or Two & Four?

RegretShield ships an update every 11 days, and Two & Four every 3 months. Most recently, RegretShield was updated on October 31, 2026 and Two & Four on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*