# Day For It vs Marla Blue

The clearest difference is ads: Day For It at none against Marla Blue's shown. Day For It also leads on device support (3 vs 1) and iOS requirement (13.4 vs 16.4). Marla Blue's advantage is update cadence (every 4 days vs every 2 weeks). On price and in-app purchases there is nothing between them.

Both are free to download. Day For It sells 6 in-app purchases, starting at $2.99 per month and Marla Blue sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Day For It ships an update every 2 weeks, Marla Blue every 4 days. The most recent releases landed on October 11, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Day For It | Marla Blue |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/marla-blue-diving-forecasts/id6673897108/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 45 MB | 93 MB |
| Requires iOS | **13.4** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Max Houghton](https://appshunter.io/developer/1558904648) | [Ocean AI](https://appshunter.io/developer/1767770858) |

## What reviewers say

### Day For It

[App page](https://appshunter.io/ios/app/day-for-it/id6446665697)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Day For It Pro | $2.99 | per month |
| Day For It Pro | $29.99 | per year |
| Donation: $ | $1.99 | one-time |
| Donation: $$ | $4.99 | one-time |
| Donation: $$$ | $9.99 | one-time |
| Day For It Lifetime | $79.99 | one-time |


### Marla Blue

[App page](https://appshunter.io/ios/app/marla-blue-diving-forecasts/id6673897108)

Plan your next underwater adventure with detailed marine weather forecasts. Get AI-powered visibility predictions, swell, wind, tide, and temperature data for over 800 dive spots. Receive algae bloom alerts and real-time viz reports from a community of divers.

**Highlights:** Underwater visibility forecasts (AI & satellite), Swell, wind, tides, water temperature, Algae bloom alerts, Real-time viz reports from divers, 800+ dive spots (UK, Ireland, Australia, California), Map-based spot selection

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Marla Blue Monthly | $9.99 | per month |
| Dive Season Pass (6 months) | $34.99 | per 6 months |
| Marla Annual Subscription | $59.99 | per year |


## Frequently asked questions

### Is Day For It free?

Day For It is free to download, with in-app purchases available.

### Is Marla Blue free?

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

### Do Day For It or Marla Blue have ads?

Marla Blue shows ads; Day For It does not.

### Which is updated more often, Day For It or Marla Blue?

Day For It ships an update every 2 weeks, and Marla Blue every 4 days. Most recently, Day For It was updated on October 11, 2026 and Marla Blue on October 18, 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.*