# AP Chem Kinetics Sim vs IdleSphere

The clearest difference is rating: AP Chem Kinetics Sim at 5.0 against IdleSphere's 3.8. AP Chem Kinetics Sim also leads on in-app purchases (none vs 6) and ads (none vs shown). IdleSphere's advantage is update cadence (every 8 days vs every 6 months) and ratings volume (32 vs 2). On price, device support and iOS requirement there is nothing between them.

Both are free to download. IdleSphere sells 6 one-off in-app purchases. AP Chem Kinetics Sim asks for nothing beyond the download.

AP Chem Kinetics Sim holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: IdleSphere has 32 ratings behind it against 2, so its average is the more settled of the two.

AP Chem Kinetics Sim ships an update every 6 months, IdleSphere every 8 days. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | AP Chem Kinetics Sim | IdleSphere |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ap-chem-kinetics-sim/id6480323465/reviews)** | [3.8 (32 ratings)](https://appshunter.io/ios/app/idlesphere/id6480509205/reviews) |
| Number of ratings | 2 | **32** |
| Positive reviews | — | 46.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 8 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 0 MB | 224 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jason Todd Gentry](https://appshunter.io/developer/1721938084) | [Idle System, Inc.](https://appshunter.io/developer/1727483319) |

## What reviewers say

### AP Chem Kinetics Sim

[App page](https://appshunter.io/ios/app/ap-chem-kinetics-sim/id6480323465)

Explore chemical kinetics through an interactive game designed for AP Chemistry students. This simulation allows for hands-on learning of reaction rates and mechanisms. Developed by students, it offers a unique educational experience.

**Highlights:** Interactive simulation, Kinetics concepts, AP Chemistry focus, Student-developed, Educational gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### IdleSphere

[App page](https://appshunter.io/ios/app/idlesphere/id6480509205)

Experience a visually stunning incremental game centered around spheres. Watch countless spheres come to life with synchronized graphics and in-game currency. Enjoy intuitive upgrades, a deep prestige system, and a wealth of content in this mesmerizing adventure.

**Highlights:** Visually stunning sphere graphics, Synchronized in-game currency and visuals, Intuitive upgrade system, Extensive prestige system, Zoom in and out functionality, Wealth of content

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chaotics 200 | $1.99 | one-time |
| Chaotics 1000 | $6.99 | one-time |
| Orbit Pack | $7.99 | one-time |
| Permanent Bonus | $9.99 | one-time |
| Digital Winter | $19.99 | one-time |
| Chaotics 5000 | $29.99 | one-time |


## Frequently asked questions

### Is AP Chem Kinetics Sim free?

AP Chem Kinetics Sim is free to download, with no in-app purchases.

### Is IdleSphere free?

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

### Which has better reviews, AP Chem Kinetics Sim or IdleSphere?

AP Chem Kinetics Sim is rated higher. AP Chem Kinetics Sim averages 5.0 out of 5 from 2 ratings, while IdleSphere averages 3.8 from 32 ratings.

### Do AP Chem Kinetics Sim or IdleSphere have ads?

IdleSphere shows ads; AP Chem Kinetics Sim does not.

### Which is updated more often, AP Chem Kinetics Sim or IdleSphere?

AP Chem Kinetics Sim ships an update every 6 months, and IdleSphere every 8 days. Most recently, AP Chem Kinetics Sim was updated on October 24, 2026 and IdleSphere on October 20, 2026.

---

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