# BKM Solvents vs ChemBrief

The clearest difference is in-app purchases: BKM Solvents at none against ChemBrief's 3. ChemBrief's advantage is update cadence (fortnightly vs every 4 months) and iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. ChemBrief sells 3 in-app purchases, starting at $5.99 per month. BKM Solvents asks for nothing beyond the download.

BKM Solvents ships an update every 4 months, ChemBrief fortnightly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | BKM Solvents | ChemBrief |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Size | 37 MB | 33 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Bharat Mehta](https://appshunter.io/developer/1643262487) | [ECHEMI SPECIALTIES LIMITED](https://appshunter.io/developer/1894988719) |

## What reviewers say

### BKM Solvents

[App page](https://appshunter.io/ios/app/bkm-solvents/id1643262485)

**Features:** macOS Compatibility

**In-app purchases:** none


### ChemBrief

[App page](https://appshunter.io/ios/app/chembrief/id6762741753)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Monthly | $5.99 | per month |
| Plus Quarterly | $14.99 | per 3 months |
| Plus Annual | $39.99 | per year |


## Frequently asked questions

### Is BKM Solvents free?

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

### Is ChemBrief free?

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

### Do BKM Solvents or ChemBrief have ads?

Neither BKM Solvents nor ChemBrief shows ads.

### Which is updated more often, BKM Solvents or ChemBrief?

BKM Solvents ships an update every 4 months, and ChemBrief fortnightly. Most recently, BKM Solvents was updated on November 3, 2026 and ChemBrief on October 31, 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.*