# NineOneOne vs Battery Tracker Plus

The clearest difference is review sentiment: NineOneOne at 100% against Battery Tracker Plus's 50%. NineOneOne also leads on rating (5.0 vs 2.8) and chart position (#181 vs unranked). Battery Tracker Plus's advantage is price (Free vs $0.99) and update cadence (monthly vs every 22 months). On ads and in-app purchases there is nothing between them.

Battery Tracker Plus is free to download; NineOneOne costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

NineOneOne holds the better App Store score, 5.0 against 2.8. That said, the two scores are not equally well evidenced: Battery Tracker Plus has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of NineOneOne's written reviews are positive against 50% of Battery Tracker Plus's.

NineOneOne ships an update every 22 months, Battery Tracker Plus monthly. The most recent releases landed on July 25, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | NineOneOne | Battery Tracker Plus |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nineoneone-emergency-dialer/id387750159/reviews)** | [2.8 (13 ratings)](https://appshunter.io/ios/app/battery-tracker-plus/id6475273387/reviews) |
| Number of ratings | 1 | **13** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Monthly** |
| Monetization | Paid | **Free** |
| Best chart rank | **#181** | — |
| Size | 1 MB | 59 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | iPhone | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Evan Stone](https://appshunter.io/developer/387750162) | [Antigravity Batteries LLC](https://appshunter.io/developer/1450596782) |

## What reviewers say

### NineOneOne

[App page](https://appshunter.io/ios/app/nineoneone-emergency-dialer/id387750159)

**Currently charting:** #181 Top Paid · Utilities (US App Store)

This app streamlines emergency calls, reducing the number of taps needed to reach emergency services. It offers customizable settings for faster dialing in critical situations.

**Highlights:** One-touch emergency calling, Reduced tap count for calls, Customizable emergency number, Disable dial confirmation, Large, easy-to-tap button

**In-app purchases:** none


### Battery Tracker Plus

[App page](https://appshunter.io/ios/app/battery-tracker-plus/id6475273387)

Monitor your vehicle's battery status remotely via Bluetooth. View real-time voltage, historical graphics, and perform system tests. Receive alerts and track mileage and cost data for up to four vehicles.

**Highlights:** Bluetooth battery monitoring, Real-time and historical voltage graphics, Cranking and charging system test, Warning alerts, Mileage and cost tracking, Supports 4 vehicles

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

**In-app purchases:** none


## Frequently asked questions

### Is NineOneOne free?

NineOneOne costs $0.99, with no in-app purchases.

### Is Battery Tracker Plus free?

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

### Which has better reviews, NineOneOne or Battery Tracker Plus?

NineOneOne is rated higher. NineOneOne averages 5.0 out of 5 from 1 ratings, while Battery Tracker Plus averages 2.8 from 13 ratings.

### Do NineOneOne or Battery Tracker Plus have ads?

Neither NineOneOne nor Battery Tracker Plus shows ads.

### Which is updated more often, NineOneOne or Battery Tracker Plus?

NineOneOne ships an update every 22 months, and Battery Tracker Plus monthly. Most recently, NineOneOne was updated on July 25, 2026 and Battery Tracker Plus on August 27, 2026.

---

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