# SmartWater Registration vs CDAIA

The clearest difference is update cadence: SmartWater Registration at every 5 months against CDAIA's every 11 months. 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.

SmartWater Registration ships an update every 5 months, CDAIA every 11 months. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | SmartWater Registration | CDAIA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 11 months |
| Size | 10 MB | 27 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Themis Risk Holdings Limited](https://appshunter.io/developer/1406842551) | [California District Attorney Investigators' Association](https://appshunter.io/developer/1799068188) |

## What reviewers say

### SmartWater Registration

[App page](https://appshunter.io/ios/app/smartwater-registration/id1438535700)

**Features:** macOS Compatibility

**In-app purchases:** none


### CDAIA

[App page](https://appshunter.io/ios/app/cdaia/id6742591879)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SmartWater Registration free?

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

### Is CDAIA free?

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

### Do SmartWater Registration or CDAIA have ads?

Neither SmartWater Registration nor CDAIA shows ads.

### Which is updated more often, SmartWater Registration or CDAIA?

SmartWater Registration ships an update every 5 months, and CDAIA every 11 months. Most recently, SmartWater Registration was updated on October 26, 2026 and CDAIA on October 30, 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.*