# LeafSpy Pro vs BrightEMS

The clearest difference is price: BrightEMS at Free against LeafSpy Pro's $19.99. BrightEMS also leads on update cadence (every 3 weeks vs every 2 months). LeafSpy Pro's advantage is rating (3.5 vs 2.6) and review sentiment (46% vs 31%). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

BrightEMS is free to download; LeafSpy Pro costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

LeafSpy Pro holds the better App Store score, 3.5 against 2.6. That said, the two scores are not equally well evidenced: LeafSpy Pro has 114 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 46% of LeafSpy Pro's written reviews are positive against 31% of BrightEMS's.

LeafSpy Pro ships an update every 2 months, BrightEMS every 3 weeks. The most recent releases landed on September 24, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | LeafSpy Pro | BrightEMS |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[3.5 (114 ratings)](https://appshunter.io/ios/app/leafspy-pro/id967376861/reviews)** | [2.6 (14 ratings)](https://appshunter.io/ios/app/brightems/id6450639649/reviews) |
| Number of ratings | **114** | 14 |
| Positive reviews | **45.7% of reviews** | 30.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Best chart rank | **#7** | — |
| Size | 13 MB | 40 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [James Pollock](https://appshunter.io/developer/967376860) | [Shenzhen Abisda Network Technology Co., Ltd.](https://appshunter.io/developer/1750660585) |

## What reviewers say

### LeafSpy Pro

[App page](https://appshunter.io/ios/app/leafspy-pro/id967376861)

**Currently charting:** #7 Top Paid · Lifestyle (US App Store)

Monitor your Nissan Leaf's battery health, charging history, and vehicle diagnostics. Perform dealer-level functions like changing settings and reading trouble codes. Log data and sync to Dropbox for detailed analysis.

**Highlights:** Cell pair voltage monitoring, Battery temperature readings, Battery AHr rating and capacity, Charging connection history, Diagnostic Trouble Code (DTC) reading, Tire pressure monitoring, Trip and charge logging

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Great app!
- 👍 Easy to use
- 🔋 Helpful for monitoring battery health
- 💡 Integrates with other apps
- 👍 Vital for Leaf owners

**What reviewers complain about**

- 🐛 Doesn't work with latest iOS
- 👎 Poor user interface
- 🐛 Crashes frequently
- 👎 Expensive for functionality
- 🐛 Doesn't work with all OBD2 dongles

**Reported bugs**

- Doesn't connect via Bluetooth on iOS
- Crashes on startup after iOS updates
- Fails to load data despite being connected
- Doesn't work with Mini OBD2 scanners
- Can't change sounds on newer Leaf models

**Requested features**

- Add support for newer Leaf models
- Improve user interface and design
- Add Apple CarPlay integration
- Expand compatibility with more OBD2 dongles
- Improve documentation and in-app help


### BrightEMS

[App page](https://appshunter.io/ios/app/brightems/id6450639649)

Manage your energy storage power supply with comprehensive control over switches, charging, and power parameters. Optimize energy usage, schedule charging, and keep your device updated with the latest firmware.

**Highlights:** USB/AC/DC/LED switch control, Energy parameter monitoring, Silent and scheduled charging, Customizable DC charging, Screen and standby time settings, Firmware version upgrades

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LeafSpy Pro free?

LeafSpy Pro costs $19.99, with no in-app purchases.

### Is BrightEMS free?

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

### Which has better reviews, LeafSpy Pro or BrightEMS?

LeafSpy Pro is rated higher. LeafSpy Pro averages 3.5 out of 5 from 114 ratings, while BrightEMS averages 2.6 from 14 ratings.

### Do LeafSpy Pro or BrightEMS have ads?

Neither LeafSpy Pro nor BrightEMS shows ads.

### Which is updated more often, LeafSpy Pro or BrightEMS?

LeafSpy Pro ships an update every 2 months, and BrightEMS every 3 weeks. Most recently, LeafSpy Pro was updated on September 24, 2026 and BrightEMS on September 26, 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.*