# Smart Reef vs Countdown

The clearest difference is iOS requirement: Smart Reef at 14.6 against Countdown's 26.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Smart Reef sells 7 one-off in-app purchases and Countdown sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Smart Reef | Countdown |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.5 (23 ratings)](https://appshunter.io/ios/app/smart-reef/id1480355166/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 3.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 2 MB |
| Requires iOS | **14.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Reef Factory sp. z o.o.](https://appshunter.io/developer/1367901113) | [Morgan Hunt](https://appshunter.io/developer/1539166783) |

## What reviewers say

### Smart Reef

[App page](https://appshunter.io/ios/app/smart-reef/id1480355166)

Manage your marine aquarium with this app. It provides device management, alerts for issues, and detailed historical data. A central dashboard offers a clear overview of your aquarium's status and device operations.

**Highlights:** Device management, Aquarium alerts, Measurement history, Operational status dashboard, Planned job journal, Preset sharing

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Warranty 3 years | $12.99 | one-time |
| Warranty 3 years | $19.99 | one-time |
| Warranty 3 years | $24.99 | one-time |
| Warranty 3 years | $29.99 | one-time |
| Warranty 3 years | $34.99 | one-time |
| Warranty 3 years | $39.99 | one-time |
| Warranty 3 years | $49.99 | one-time |


### Countdown

[App page](https://appshunter.io/ios/app/countdown-widget/id6792567008)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Countdown Pro | $1.99 | one-time |


## Frequently asked questions

### Is Smart Reef free?

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

### Is Countdown free?

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

### Do Smart Reef or Countdown have ads?

Neither Smart Reef nor Countdown shows ads.

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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.*