# Future Flood Predictor vs SunSpan

The clearest difference is update cadence: SunSpan at every 2 days against Future Flood Predictor's every 3 weeks. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Future Flood Predictor against 5.0 for SunSpan. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Future Flood Predictor ships an update every 3 weeks, SunSpan every 2 days. The most recent releases landed on October 11, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Future Flood Predictor | SunSpan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/future-flood-predictor/id6754620903/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/sunspan/id6761731642/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free | Free |
| Size | 3 MB | 6 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Aarav Ganesh](https://appshunter.io/developer/1849302265) | [Mykhailo Chelnokov](https://appshunter.io/developer/1891136089) |

## What reviewers say

### Future Flood Predictor

[App page](https://appshunter.io/ios/app/future-flood-predictor/id6754620903)

This application provides real-time, localized flood risk assessments using data from NASA satellites and weather stations. It offers instant risk level indicators and critical alerts to help users stay informed and safe during changing weather conditions.

**Highlights:** Real-time flood risk levels, NASA-powered data accuracy, Critical flood alerts, Detailed precipitation data, Location-based risk assessment

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

**In-app purchases:** none


### SunSpan

[App page](https://appshunter.io/ios/app/sunspan/id6761731642)

Visualize an entire year of daylight, sunrise, sunset, and twilight on a single, intuitive chart. Easily inspect daily solar times and phases by tapping or dragging across the visual representation. Offers detailed insights into seasonal changes and astronomical events.

**Highlights:** Full-year daylight chart, Eight-stop twilight gradient, Inspect daily solar times, DST transitions marked, Location picker via map/GPS, Automatic time zone resolution

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

**In-app purchases:** none


## Frequently asked questions

### Is Future Flood Predictor free?

Future Flood Predictor is free to download, with no in-app purchases.

### Is SunSpan free?

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

### Which has better reviews, Future Flood Predictor or SunSpan?

Future Flood Predictor and SunSpan are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Future Flood Predictor or SunSpan have ads?

Neither Future Flood Predictor nor SunSpan shows ads.

### Which is updated more often, Future Flood Predictor or SunSpan?

Future Flood Predictor ships an update every 3 weeks, and SunSpan every 2 days. Most recently, Future Flood Predictor was updated on October 11, 2026 and SunSpan on September 25, 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.*