# AdPreviewer vs Ultimus Battery

The clearest difference is iOS requirement: Ultimus Battery at 13.0 against AdPreviewer's 15.6. On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for AdPreviewer against 5.0 for Ultimus Battery. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

AdPreviewer ships an update every 14 months, Ultimus Battery every 12 months. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | AdPreviewer | Ultimus Battery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/adpreviewer/id949612320/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/ultimus-battery/id6472026731/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 12 months** |
| Monetization | Free | Free |
| Size | 11 MB | 17 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FreeWheel Media Inc.](https://appshunter.io/developer/949612319) | [Larry Crutcher](https://appshunter.io/developer/1215165109) |

## What reviewers say

### AdPreviewer

[App page](https://appshunter.io/ios/app/adpreviewer/id949612320)

This tool allows users to preview ads rendered by the FreeWheel iOS AdManager. It functions as a player for FreeWheel ad responses, enabling verification of composed or captured ad content.

**Highlights:** Ad playback integration, FreeWheel iOS AdManager support, Preview composed ad responses, Verify captured ad responses, Configurator tool integration

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is AdPreviewer free?

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

### Is Ultimus Battery free?

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

### Which has better reviews, AdPreviewer or Ultimus Battery?

AdPreviewer and Ultimus Battery are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do AdPreviewer or Ultimus Battery have ads?

Neither AdPreviewer nor Ultimus Battery shows ads.

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

AdPreviewer ships an update every 14 months, and Ultimus Battery every 12 months. Most recently, AdPreviewer was updated on November 1, 2026 and Ultimus Battery on November 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*