# ChangeLeader vs ChemIndix 2024

The clearest difference is update cadence: ChemIndix 2024 at every 2 days against ChangeLeader's every 3 weeks. ChangeLeader's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.6). On price, ads and in-app purchases there is nothing between them.

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

ChangeLeader ships an update every 3 weeks, ChemIndix 2024 every 2 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | ChangeLeader | ChemIndix 2024 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 101 MB | 6 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [CHANGELEADER](https://appshunter.io/developer/1687299287) | [Fawaz Alkhodier](https://appshunter.io/developer/1780325514) |

## What reviewers say

### ChangeLeader

[App page](https://appshunter.io/ios/app/changeleader/id6449364465)

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

**In-app purchases:** none


### ChemIndix 2024

[App page](https://appshunter.io/ios/app/chemindix-2024/id6738349960)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ChangeLeader free?

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

### Is ChemIndix 2024 free?

ChemIndix 2024 is free to download, with no in-app purchases.

### Do ChangeLeader or ChemIndix 2024 have ads?

Neither ChangeLeader nor ChemIndix 2024 shows ads.

### Which is updated more often, ChangeLeader or ChemIndix 2024?

ChangeLeader ships an update every 3 weeks, and ChemIndix 2024 every 2 days. Most recently, ChangeLeader was updated on November 3, 2026 and ChemIndix 2024 on October 30, 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.*