# PPIGarage vs Battery Grapher

The clearest difference is price: PPIGarage at Free against Battery Grapher's $1.99. PPIGarage also leads on iOS requirement (8.0 vs 15.0). Battery Grapher's advantage is rating (4.3 vs 2.5) and ratings volume (155 vs 4). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

PPIGarage is free to download; Battery Grapher costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Battery Grapher holds the better App Store score, 4.3 against 2.5. That said, the two scores are not equally well evidenced: Battery Grapher has 155 ratings behind it against 4, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | PPIGarage | Battery Grapher |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [2.5 (4 ratings)](https://appshunter.io/ios/app/ppigarage/id1264388923/reviews) | **[4.3 (155 ratings)](https://appshunter.io/ios/app/battery-grapher/id1498632956/reviews)** |
| Number of ratings | 4 | **155** |
| Positive reviews | — | 61.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 11 MB | 5 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [ParkPlus](https://appshunter.io/developer/1264388921) | [Joshua Bird](https://appshunter.io/developer/1549690243) |

## What reviewers say

### PPIGarage

[App page](https://appshunter.io/ios/app/ppigarage/id1264388923)

This app offers automated robotic valet parking services for members. It allows users to conveniently park and retrieve their vehicles, saving valuable time. Experience the ultimate in parking convenience with this innovative solution.

**Highlights:** Automated robotic valet parking, Park and retrieve vehicles, Save time, Ultimate convenience, Member access

**In-app purchases:** none


### Battery Grapher

[App page](https://appshunter.io/ios/app/battery-grapher/id1498632956)

This app tracks your device's battery usage over time and uses your historical data to predict future battery levels. It's designed for low energy consumption and offers customizable notifications to help you manage charging times.

**Highlights:** Historical battery level graphing, Smart future battery predictions, Low energy consumption design, Customizable battery notifications, Supports all complications and widget sizes

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

**In-app purchases:** none

**What reviewers like**

- 💡 Innovative battery prediction feature
- ⌚ Accurate Apple Watch complication display
- 📊 Detailed battery usage analytics and graphs
- 🎯 Learns usage patterns over time for better accuracy
- 🔋 Shows hours remaining instead of just percentage

**What reviewers complain about**

- 🐛 Complication fails to update frequently
- ❌ Widget missing or not appearing on installation
- 🔴 Inaccurate battery predictions, especially on newer devices
- ⏰ Updates only once per hour, causing stale data
- 📉 Accuracy takes weeks to improve on Apple Watch

**Reported bugs**

- Widget not displaying on initial installation
- Complication shows stale data and doesn't refresh automatically
- Battery percentage stuck at incorrect values (e.g., 73%, 68%)
- Accuracy status fluctuates rapidly between good and bad
- Missing data warnings despite app being in dock

**Requested features**

- Watch complication for Smart Stack (watchOS 10+)
- Support for Apple Watch Ultra with correct 36-hour battery display
- Low power mode detection and separate prediction profiles
- Force refresh button in app
- More frequent update intervals (user-configurable)


## Frequently asked questions

### Is PPIGarage free?

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

### Is Battery Grapher free?

Battery Grapher costs $1.99, with no in-app purchases.

### Which has better reviews, PPIGarage or Battery Grapher?

Battery Grapher is rated higher. PPIGarage averages 2.5 out of 5 from 4 ratings, while Battery Grapher averages 4.3 from 155 ratings.

### Do PPIGarage or Battery Grapher have ads?

Neither PPIGarage nor Battery Grapher shows ads.

### Which is updated more often, PPIGarage or Battery Grapher?

PPIGarage ships an update every 2 months, and Battery Grapher every 2 months. Most recently, PPIGarage was updated on October 24, 2026 and Battery Grapher on October 29, 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.*