# MASD  Alerting vs DiveCodes

The clearest difference is iOS requirement: MASD  Alerting at 12.0 against DiveCodes's 17.0. On price, update cadence, 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.

MASD  Alerting ships an update every 13 months, DiveCodes every 23 months. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | MASD  Alerting | DiveCodes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 13 months** | Every 23 months |
| Size | 65 MB | 99 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mach Alert Inc.](https://appshunter.io/developer/1472612618) | [Christopher Konash](https://appshunter.io/developer/1700927216) |

## What reviewers say

### MASD  Alerting

[App page](https://appshunter.io/ios/app/masd-alerting/id1629039048)

**In-app purchases:** none


### DiveCodes

[App page](https://appshunter.io/ios/app/divecodes/id6478464917)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MASD  Alerting free?

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

### Is DiveCodes free?

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

### Do MASD  Alerting or DiveCodes have ads?

Neither MASD  Alerting nor DiveCodes shows ads.

### Which is updated more often, MASD  Alerting or DiveCodes?

MASD  Alerting ships an update every 13 months, and DiveCodes every 23 months. Most recently, MASD  Alerting was updated on October 11, 2026 and DiveCodes 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.*