# IMSOFA vs 4Surfers

The clearest difference is in-app purchases: IMSOFA at none against 4Surfers's 2. IMSOFA also leads on update cadence (every 4 weeks vs every 10 months) and iOS requirement (14.0 vs 16.2). On price, ads and device support there is nothing between them.

Both are free to download. 4Surfers sells 2 in-app purchases, starting at $1.99 per month. IMSOFA asks for nothing beyond the download.

IMSOFA ships an update every 4 weeks, 4Surfers every 10 months. The most recent releases landed on October 10, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | IMSOFA | 4Surfers |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 10 months |
| Size | 31 MB | 1 MB |
| Requires iOS | **14.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Israel Meteorological Service](https://appshunter.io/developer/1813202934) | [Chen Noam](https://appshunter.io/developer/1836893929) |

## What reviewers say

### IMSOFA

[App page](https://appshunter.io/ios/app/imsofa/id6747021522)

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

**In-app purchases:** none


### 4Surfers

[App page](https://appshunter.io/ios/app/4surfers/id6751803126)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| מנוי חודשי | $1.99 | per month |
| מנוי שנתי | $22.99 | per year |


## Frequently asked questions

### Is IMSOFA free?

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

### Is 4Surfers free?

4Surfers is free to download, with in-app purchases available.

### Do IMSOFA or 4Surfers have ads?

Neither IMSOFA nor 4Surfers shows ads.

### Which is updated more often, IMSOFA or 4Surfers?

IMSOFA ships an update every 4 weeks, and 4Surfers every 10 months. Most recently, IMSOFA was updated on October 10, 2026 and 4Surfers on October 16, 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.*