# iTelAlert 2.0 vs 21Seven

The clearest difference is update cadence: iTelAlert 2.0 at monthly against 21Seven's every 2 months. 21Seven's advantage is 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.

iTelAlert 2.0 ships an update monthly, 21Seven every 2 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | iTelAlert 2.0 | 21Seven |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 49 MB | 60 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [OrcaGroup](https://appshunter.io/developer/1046828969) | [21south](https://appshunter.io/developer/1263850897) |

## What reviewers say

### iTelAlert 2.0

[App page](https://appshunter.io/ios/app/itelalert-20/id6470351756)

**In-app purchases:** none


### 21Seven

[App page](https://appshunter.io/ios/app/21seven/id6738125577)

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

**In-app purchases:** none


## Frequently asked questions

### Is iTelAlert 2.0 free?

iTelAlert 2.0 is free to download, with no in-app purchases.

### Is 21Seven free?

21Seven is free to download, with no in-app purchases.

### Do iTelAlert 2.0 or 21Seven have ads?

Neither iTelAlert 2.0 nor 21Seven shows ads.

### Which is updated more often, iTelAlert 2.0 or 21Seven?

iTelAlert 2.0 ships an update monthly, and 21Seven every 2 months. Most recently, iTelAlert 2.0 was updated on October 27, 2026 and 21Seven on October 25, 2026.

---

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