# Haiku Note vs TankLog

The clearest difference is ads: TankLog at none against Haiku Note's shown. TankLog also leads on update cadence (every 6 days vs every 5 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Haiku Note sells 1 one-off in-app purchase and TankLog sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Haiku Note ships an update every 5 weeks, TankLog every 6 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Haiku Note | TankLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/tanklog-aquascape/id6762062161/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 6 days** |
| Monetization | — | Free |
| Size | 8 MB | 4 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mihoko Araki](https://appshunter.io/developer/1476136915) | [John Katez](https://appshunter.io/developer/1279354709) |

## What reviewers say

### Haiku Note

[App page](https://appshunter.io/ios/app/haiku-note/id1617431925)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $2.99 | one-time |


### TankLog

[App page](https://appshunter.io/ios/app/tanklog-aquascape/id6762062161)

This app helps you meticulously track your aquarium's water chemistry, maintenance, and livestock. It offers detailed logging for water parameters, customizable schedules, and equipment inventory, all while prioritizing user privacy with no data collection.

**Highlights:** Water chemistry tracking, Customizable maintenance schedules, Livestock and plant inventory, Equipment tracker, CO₂ estimation, Privacy-focused, no data collection

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cloud Sync | $3.99 | one-time |


## Frequently asked questions

### Is Haiku Note free?

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

### Is TankLog free?

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

### Do Haiku Note or TankLog have ads?

Haiku Note shows ads; TankLog does not.

### Which is updated more often, Haiku Note or TankLog?

Haiku Note ships an update every 5 weeks, and TankLog every 6 days. Most recently, Haiku Note was updated on October 25, 2026 and TankLog on October 24, 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.*