# Future Earth vs Three

The clearest difference is rating: Future Earth at 4.6 against Three's 2.0. Future Earth also leads on ratings volume (49 vs 4) and review sentiment (60% vs 50%). Three's advantage is update cadence (weekly vs every 2 months) and price ($0.99 vs $1.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Future Earth costs $1.99 and Three $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Future Earth holds the better App Store score, 4.6 against 2.0. That said, the two scores are not equally well evidenced: Future Earth has 49 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 60% of Future Earth's written reviews are positive against 50% of Three's.

Future Earth ships an update every 2 months, Three weekly. The most recent releases landed on September 29, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Future Earth | Three |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | **[4.6 (49 ratings)](https://appshunter.io/ios/app/future-earth/id1161247881/reviews)** | [2.0 (4 ratings)](https://appshunter.io/ios/app/three-body-simulator/id6446972716/reviews) |
| Number of ratings | **49** | 4 |
| Positive reviews | **60.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Paid | Paid |
| Size | 31 MB | 72 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas L. Moore](https://appshunter.io/developer/317330726) | [骐显 梁](https://appshunter.io/developer/1314814852) |

## What reviewers say

### Future Earth

[App page](https://appshunter.io/ios/app/future-earth/id1161247881)

Explore potential future geological changes on Earth over the next 250 million years. This app visually depicts the evolution of continents and oceans based on scientific understanding of plate tectonics and geologic history.

**Highlights:** Future geological simulations, Continental evolution visualization, Oceanic change depiction, Plate tectonics based predictions, 250 million year timeline

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

**In-app purchases:** none


### Three

[App page](https://appshunter.io/ios/app/three-body-simulator/id6446972716)

Explore celestial mechanics by simulating gravitational interactions between multiple celestial bodies. Users can add up to seven suns and an asteroid matrix to observe complex orbital behaviors and gravitational slingshot effects. The app allows for adjustments to gravity parameters for demonstration purposes.

**Highlights:** Multi-body gravitational simulation, Add up to 7 suns, Asteroid matrix simulation, Observe gravitational slingshots, Adjustable gravity parameters for demonstration, Enlarged volumes for better observation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Future Earth free?

Future Earth costs $1.99, with no in-app purchases.

### Is Three free?

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

### Which has better reviews, Future Earth or Three?

Future Earth is rated higher. Future Earth averages 4.6 out of 5 from 49 ratings, while Three averages 2.0 from 4 ratings.

### Do Future Earth or Three have ads?

Neither Future Earth nor Three shows ads.

### Which is updated more often, Future Earth or Three?

Future Earth ships an update every 2 months, and Three weekly. Most recently, Future Earth was updated on September 29, 2026 and Three on September 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*