# ChargeSpectrum vs Ask Terumo Neuro

The clearest difference is iOS requirement: ChargeSpectrum at 13.0 against Ask Terumo Neuro's 15.0. On price, update cadence, 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.

ChargeSpectrum ships an update every 5 months, Ask Terumo Neuro every 4 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ChargeSpectrum | Ask Terumo Neuro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Size | 32 MB | 86 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Clinicspectrum, Inc.](https://appshunter.io/developer/932413384) | [MicroVention, Inc.](https://appshunter.io/developer/1620014742) |

## What reviewers say

### ChargeSpectrum

[App page](https://appshunter.io/ios/app/chargespectrum/id1004943613)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ask Terumo Neuro

[App page](https://appshunter.io/ios/app/ask-terumo-neuro/id1620014740)

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

**In-app purchases:** none


## Frequently asked questions

### Is ChargeSpectrum free?

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

### Is Ask Terumo Neuro free?

Ask Terumo Neuro is free to download, with no in-app purchases.

### Do ChargeSpectrum or Ask Terumo Neuro have ads?

Neither ChargeSpectrum nor Ask Terumo Neuro shows ads.

### Which is updated more often, ChargeSpectrum or Ask Terumo Neuro?

ChargeSpectrum ships an update every 5 months, and Ask Terumo Neuro every 4 months. Most recently, ChargeSpectrum was updated on October 26, 2026 and Ask Terumo Neuro on October 24, 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.*