# GO2 Alarm vs SmartAlarmsPro

The clearest difference is update cadence: SmartAlarmsPro at fortnightly against GO2 Alarm's every 2 months. GO2 Alarm's advantage is iOS requirement (7.0 vs 15). 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.

GO2 Alarm ships an update every 2 months, SmartAlarmsPro fortnightly. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | GO2 Alarm | SmartAlarmsPro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 79 MB | 198 MB |
| Requires iOS | **7.0** | 15 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chuango Security Technology Corporation](https://appshunter.io/developer/534068551) | [瑞发 李](https://appshunter.io/developer/963471546) |

## What reviewers say

### GO2 Alarm

[App page](https://appshunter.io/ios/app/go2-alarm/id950220556)

**In-app purchases:** none


### SmartAlarmsPro

[App page](https://appshunter.io/ios/app/smartalarmspro/id6476841253)

**In-app purchases:** none


## Frequently asked questions

### Is GO2 Alarm free?

GO2 Alarm is free to download, with no in-app purchases.

### Is SmartAlarmsPro free?

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

### Do GO2 Alarm or SmartAlarmsPro have ads?

Neither GO2 Alarm nor SmartAlarmsPro shows ads.

### Which is updated more often, GO2 Alarm or SmartAlarmsPro?

GO2 Alarm ships an update every 2 months, and SmartAlarmsPro fortnightly. Most recently, GO2 Alarm was updated on November 1, 2026 and SmartAlarmsPro on November 4, 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.*