# MemoCal Plus vs Battery Grapher

The clearest difference is update cadence: Battery Grapher at every 2 months against MemoCal Plus's every 6 months. Battery Grapher also leads on ratings volume (155 vs 23) and price ($1.99 vs $3.99). MemoCal Plus's advantage is iOS requirement (13.0 vs 15.0). On rating, review sentiment, ads and in-app purchases there is nothing between them.

MemoCal Plus costs $3.99 and Battery Grapher $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.3 for MemoCal Plus against 4.3 for Battery Grapher. That said, the two scores are not equally well evidenced: Battery Grapher has 155 ratings behind it against 23, so its average is the more settled of the two. Written reviews split almost evenly too, at 62% and 61% positive.

MemoCal Plus ships an update every 6 months, Battery Grapher every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | MemoCal Plus | Battery Grapher |
| --- | --- | --- |
| Price | $3.99 | **$1.99** |
| Rating | [4.3 (23 ratings)](https://appshunter.io/ios/app/memocal-plus/id450484609/reviews) | **[4.3 (155 ratings)](https://appshunter.io/ios/app/battery-grapher/id1498632956/reviews)** |
| Number of ratings | 23 | **155** |
| Positive reviews | **62.2% of reviews** | 61.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 12 MB | 5 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [株式会社HARISH](https://appshunter.io/developer/1892662582) | [Joshua Bird](https://appshunter.io/developer/1549690243) |

## What reviewers say

### MemoCal Plus

[App page](https://appshunter.io/ios/app/memocal-plus/id450484609)

This calendar app allows you to add handwritten notes, photos, and text directly to your schedule. Customize backgrounds, use various pen colors and icons, and even take photos within the app for diaries. It supports multiple languages and offers an undo function for edits.

**Highlights:** Handwritten memos, Photo integration, Text input with tags, Customizable backgrounds, Multiple pen colors and icons, Undo function

**Features:** macOS Compatibility

**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 MemoCal Plus free?

MemoCal Plus costs $3.99, with no in-app purchases.

### Is Battery Grapher free?

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

### Which has better reviews, MemoCal Plus or Battery Grapher?

Battery Grapher is rated higher. MemoCal Plus averages 4.3 out of 5 from 23 ratings, while Battery Grapher averages 4.3 from 155 ratings.

### Do MemoCal Plus or Battery Grapher have ads?

Neither MemoCal Plus nor Battery Grapher shows ads.

### Which is updated more often, MemoCal Plus or Battery Grapher?

MemoCal Plus ships an update every 6 months, and Battery Grapher every 2 months. Most recently, MemoCal Plus was updated on October 23, 2026 and Battery Grapher on October 24, 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.*