# inside.cts vs HeyBM

The clearest difference is update cadence: inside.cts at fortnightly against HeyBM's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

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

inside.cts ships an update fortnightly, HeyBM every 5 months. The most recent releases landed on September 15, 2026 and August 25, 2026 respectively.

## The numbers

| Metric | inside.cts | HeyBM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 months |
| Size | 83 MB | 73 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Caritas Tragergesellschaft Saarbrucken mbH (cts)](https://appshunter.io/developer/1783482196) | [BASF Digital Solutions GmbH](https://appshunter.io/developer/1482373796) |

## What reviewers say

### inside.cts

[App page](https://appshunter.io/ios/app/insidects/id6739033150)

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

**In-app purchases:** none


### HeyBM

[App page](https://appshunter.io/ios/app/heybm-basf-battery-materials/id6739425417)

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

**In-app purchases:** none


## Frequently asked questions

### Is inside.cts free?

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

### Is HeyBM free?

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

### Do inside.cts or HeyBM have ads?

Neither inside.cts nor HeyBM shows ads.

### Which is updated more often, inside.cts or HeyBM?

inside.cts ships an update fortnightly, and HeyBM every 5 months. Most recently, inside.cts was updated on September 15, 2026 and HeyBM on August 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.*