# Ultimus Battery vs Flowsense

The clearest difference is in-app purchases: Ultimus Battery at none against Flowsense's 3. Flowsense's advantage is update cadence (every 2 months vs every 12 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Flowsense sells 3 in-app purchases, starting at $4.99 per month. Ultimus Battery asks for nothing beyond the download.

Ultimus Battery ships an update every 12 months, Flowsense every 2 months. The most recent releases landed on November 4, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Ultimus Battery | Flowsense |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ultimus-battery/id6472026731/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 17 MB | 39 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Larry Crutcher](https://appshunter.io/developer/1215165109) | [Nge Philips Ucheolisah](https://appshunter.io/developer/1475739491) |

## What reviewers say

### Ultimus Battery

[App page](https://appshunter.io/ios/app/ultimus-battery/id6472026731)

Monitor your battery's health and performance wirelessly from your iOS device. Track cycle life, state of charge, voltage, current, and temperature with easy-to-read gauges and text alerts. Connect to individual batteries or battery banks up to 15 feet away.

**Highlights:** Wireless battery monitoring, Track cycle life, State of Charge (SOC) percentage, Display voltage, current, temperature, Battery event alerts, Bluetooth BLE 4.0+ connectivity

**Features:** macOS Compatibility

**In-app purchases:** none


### Flowsense

[App page](https://appshunter.io/ios/app/flowsense-ai-cycle-tracker/id6755949723)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flowsense Premium Monthly | $4.99 | per month |
| Flowsense Pro Monthly | $9.99 | per month |
| Flowsense Premium Yearly | $59.99 | per year |


## Frequently asked questions

### Is Ultimus Battery free?

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

### Is Flowsense free?

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

### Do Ultimus Battery or Flowsense have ads?

Neither Ultimus Battery nor Flowsense shows ads.

### Which is updated more often, Ultimus Battery or Flowsense?

Ultimus Battery ships an update every 12 months, and Flowsense every 2 months. Most recently, Ultimus Battery was updated on November 4, 2026 and Flowsense on October 28, 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.*