# ReefDrift vs Tankquil

The clearest difference is price: ReefDrift at Free against Tankquil's $0.99. Tankquil's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

ReefDrift is free to download; Tankquil costs $0.99 up front. ReefDrift sells 3 in-app purchases, starting at $3.99 per month. Tankquil asks for nothing beyond the download.

## The numbers

| Metric | ReefDrift | Tankquil |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | — |
| Best chart rank | — | **#178** |
| Size | 16 MB | 57 MB |
| Requires iOS | 18.2 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Muge Akalin](https://appshunter.io/developer/1701314808) | [Avrian Zajac](https://appshunter.io/developer/6803979491) |

## What reviewers say

### ReefDrift

[App page](https://appshunter.io/ios/app/reefdrift-reef-parameter-log/id6775145577)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReefDrift Pro Monthly | $3.99 | per month |
| ReefDrift Pro Yearly | $19.99 | per year |
| ReefDrift Pro Lifetime | $59.99 | one-time |


### Tankquil

[App page](https://appshunter.io/ios/app/tankquil/id6803979488)

**Currently charting:** #178 Top Paid · Utilities (US App Store)

**In-app purchases:** none


## Frequently asked questions

### Is ReefDrift free?

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

### Is Tankquil free?

Tankquil costs $0.99, with no in-app purchases.

### Do ReefDrift or Tankquil have ads?

ReefDrift shows ads; Tankquil does not.

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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.*