# Hanna Lab vs AquariumNotes

The clearest difference is in-app purchases: Hanna Lab at none against AquariumNotes's 3. Hanna Lab also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.0). AquariumNotes's advantage is update cadence (monthly vs every 5 months). On price and device support there is nothing between them.

Both are free to download. AquariumNotes sells 3 in-app purchases, starting at $2.99 per month. Hanna Lab asks for nothing beyond the download.

Hanna Lab ships an update every 5 months, AquariumNotes monthly. The most recent releases landed on September 25, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Hanna Lab | AquariumNotes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (10 ratings)](https://appshunter.io/ios/app/hanna-lab/id913755813/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 45.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free | — |
| Size | 32 MB | 7 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hanna Instruments, Inc.](https://appshunter.io/developer/913755816) | [Yusuke Morimoto](https://appshunter.io/developer/1702989537) |

## What reviewers say

### Hanna Lab

[App page](https://appshunter.io/ios/app/hanna-lab/id913755813)

Transform your mobile device into a professional-grade pH meter or data management system. Connect with compatible Hanna Instruments probes and meters to conduct precise measurements, store data securely, and access it via the cloud.

**Highlights:** pH meter functionality with Bluetooth probes, Data management with compatible meters, Hanna Cloud compatibility for data sync, Live measurements and trend graphs, Data export in PDF and CSV formats, Calibration and logging features

**Features:** macOS Compatibility

**In-app purchases:** none


### AquariumNotes

[App page](https://appshunter.io/ios/app/aquariumnotes/id6480376453)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PremiumMember/1Month | $2.99 | per month |
| PremiumMember/6Month | $9.99 | per 6 months |
| PremiumMember/1Year | $19.99 | per year |


## Frequently asked questions

### Is Hanna Lab free?

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

### Is AquariumNotes free?

AquariumNotes is free to download, with in-app purchases available.

### Do Hanna Lab or AquariumNotes have ads?

AquariumNotes shows ads; Hanna Lab does not.

### Which is updated more often, Hanna Lab or AquariumNotes?

Hanna Lab ships an update every 5 months, and AquariumNotes monthly. Most recently, Hanna Lab was updated on September 25, 2026 and AquariumNotes on October 9, 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.*