# G21 vs Smart SMS

The clearest difference is update cadence: Smart SMS at every 8 days against G21's monthly. On price, ads, in-app purchases and device support there is nothing between them.

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

G21 ships an update monthly, Smart SMS every 8 days. The most recent releases landed on November 4, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | G21 | Smart SMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 8 days** |
| Size | 63 MB | 22 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [Eliano da Paixao Santana](https://appshunter.io/developer/1631438871) | [Damiao Sobrinho](https://appshunter.io/developer/1323946903) |

## What reviewers say

### G21

[App page](https://appshunter.io/ios/app/g21/id6479374003)

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

**In-app purchases:** none


### Smart SMS

[App page](https://appshunter.io/ios/app/smart-sms/id6785112954)

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

**In-app purchases:** none


## Frequently asked questions

### Is G21 free?

G21 is free to download, with no in-app purchases.

### Is Smart SMS free?

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

### Do G21 or Smart SMS have ads?

Neither G21 nor Smart SMS shows ads.

### Which is updated more often, G21 or Smart SMS?

G21 ships an update monthly, and Smart SMS every 8 days. Most recently, G21 was updated on November 4, 2026 and Smart SMS on November 10, 2026.

---

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