# Multi vs Spectra Customer

The clearest difference is price: Spectra Customer at Free against Multi's $9.99. Spectra Customer also leads on update cadence (every 10 days vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Spectra Customer is free to download; Multi costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Multi ships an update every 3 months, Spectra Customer every 10 days. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Multi | Spectra Customer |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[3.3 (8 ratings)](https://appshunter.io/ios/app/multi-batt-mon/id1345741752/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 51.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 16 MB | 41 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Amoeba New Energy Co., Ltd.](https://appshunter.io/developer/978609032) | [Spectra Solar](https://appshunter.io/developer/1771943839) |

## What reviewers say

### Multi

[App page](https://appshunter.io/ios/app/multi-batt-mon/id1345741752)

Monitor multiple 12V vehicle batteries simultaneously with this app. It stores data permanently, allows export and sharing, and provides trip records and expense management. Receive notifications when near your connected devices.

**Highlights:** Monitor multiple 12V vehicle batteries, Supports 4 device connections, Permanent data storage, Data export and sharing, Trip record tracking, Vehicle expense management, Proximity notifications

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Spectra Customer

[App page](https://appshunter.io/ios/app/spectra-customer/id6749057863)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Multi free?

Multi costs $9.99, with no in-app purchases.

### Is Spectra Customer free?

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

### Do Multi or Spectra Customer have ads?

Neither Multi nor Spectra Customer shows ads.

### Which is updated more often, Multi or Spectra Customer?

Multi ships an update every 3 months, and Spectra Customer every 10 days. Most recently, Multi was updated on October 19, 2026 and Spectra Customer on October 15, 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.*