# SECTRON GSM Key vs EXEO nano

The clearest difference is update cadence: SECTRON GSM Key at every 7 months against EXEO nano's every 19 months. SECTRON GSM Key also leads on iOS requirement (12.0 vs 15.0). 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.

SECTRON GSM Key ships an update every 7 months, EXEO nano every 19 months. The most recent releases landed on October 26, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | SECTRON GSM Key | EXEO nano |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 19 months |
| Size | 7 MB | 15 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SECTRON s.r.o.](https://appshunter.io/developer/1448669971) | [Vasek Mican](https://appshunter.io/developer/1052829564) |

## What reviewers say

### SECTRON GSM Key

[App page](https://appshunter.io/ios/app/sectron-gsm-key/id1448669972)

**Features:** macOS Compatibility

**In-app purchases:** none


### EXEO nano

[App page](https://appshunter.io/ios/app/exeo-nano/id1614143957)

**In-app purchases:** none


## Frequently asked questions

### Is SECTRON GSM Key free?

SECTRON GSM Key is free to download, with no in-app purchases.

### Is EXEO nano free?

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

### Do SECTRON GSM Key or EXEO nano have ads?

Neither SECTRON GSM Key nor EXEO nano shows ads.

### Which is updated more often, SECTRON GSM Key or EXEO nano?

SECTRON GSM Key ships an update every 7 months, and EXEO nano every 19 months. Most recently, SECTRON GSM Key was updated on October 26, 2026 and EXEO nano on October 12, 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.*