# Technician | AquaCertify.com vs App & Know

The clearest difference is update cadence: Technician | AquaCertify.com at monthly against App & Know's every 2 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.

Technician | AquaCertify.com ships an update monthly, App & Know every 2 months. The most recent releases landed on December 21, 2025 and September 10, 2026 respectively.

## The numbers

| Metric | Technician | AquaCertify.com | App & Know |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 26 MB | 109 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Consoli Tech](https://appshunter.io/developer/1657768164) | [IDenta Corp](https://appshunter.io/developer/1605550722) |

## What reviewers say

### Technician | AquaCertify.com

[App page](https://appshunter.io/ios/app/technician-aquacertifycom/id1553483969)

**Features:** macOS Compatibility

**In-app purchases:** none


### App & Know

[App page](https://appshunter.io/ios/app/app-and-know/id1605550720)

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

**In-app purchases:** none


## Frequently asked questions

### Is Technician | AquaCertify.com free?

Technician | AquaCertify.com is free to download, with no in-app purchases.

### Is App & Know free?

App & Know is free to download, with no in-app purchases.

### Do Technician | AquaCertify.com or App & Know have ads?

Neither Technician | AquaCertify.com nor App & Know shows ads.

### Which is updated more often, Technician | AquaCertify.com or App & Know?

Technician | AquaCertify.com ships an update monthly, and App & Know every 2 months. Most recently, Technician | AquaCertify.com was updated on December 21, 2025 and App & Know on September 10, 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.*