# BatteryFull + (Alarm) vs Sidebar | Fast Notes

BatteryFull + (Alarm) and Sidebar | Fast Notes both sit at 5.0 stars, but that hides the real split: 100% of Sidebar | Fast Notes's written reviews are positive against 38% of BatteryFull + (Alarm)'s. Sidebar | Fast Notes also leads on in-app purchases (none vs 1). BatteryFull + (Alarm)'s advantage is update cadence (monthly vs every 3 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. BatteryFull + (Alarm) sells 1 one-off in-app purchase. Sidebar | Fast Notes asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for BatteryFull + (Alarm) against 5.0 for Sidebar | Fast Notes. Both are backed by a comparable volume of ratings — 3 and 7 respectively. Written reviews are what separate them: 38% of BatteryFull + (Alarm)'s written reviews are positive against 100% of Sidebar | Fast Notes's.

BatteryFull + (Alarm) ships an update monthly, Sidebar | Fast Notes every 3 months. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | BatteryFull + (Alarm) | Sidebar | Fast Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/batteryfull-plus-alarm/id325915322/reviews) | [5.0 (7 ratings)](https://appshunter.io/ios/app/sidebar-fast-notes/id6450434079/reviews) |
| Number of ratings | 3 | **7** |
| Positive reviews | 37.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 24 MB | 2 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Teokoul](https://appshunter.io/developer/317751186) | [Chris Woods](https://appshunter.io/developer/1693297958) |

## What reviewers say

### BatteryFull + (Alarm)

[App page](https://appshunter.io/ios/app/batteryfull-plus-alarm/id325915322)

Receive alerts when your device's battery reaches a custom charge level. Monitor charging progress and track historical charging sessions to optimize battery health. An Apple Watch app allows for convenient checking of charging status.

**Highlights:** Customizable battery charge alerts, Apple Watch charging progress monitoring, Charging session history tracking, Battery life optimization tips, Energy saving features

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $0.99 | one-time |


### Sidebar | Fast Notes

[App page](https://appshunter.io/ios/app/sidebar-fast-notes/id6450434079)

Quickly capture thoughts and ideas without the need for organization. Entries are timestamped logs that can be tagged as to-dos or personal wins/losses. Syncs across devices with custom themes and a stealth mode.

**Highlights:** Instant note capture, Timestamped entries, To-do list integration, Personal scoreboard, Cross-device sync, Custom themes, Stealth mode

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

**In-app purchases:** none


## Frequently asked questions

### Is BatteryFull + (Alarm) free?

BatteryFull + (Alarm) is free to download, with in-app purchases available.

### Is Sidebar | Fast Notes free?

Sidebar | Fast Notes is free to download, with no in-app purchases.

### Which has better reviews, BatteryFull + (Alarm) or Sidebar | Fast Notes?

BatteryFull + (Alarm) and Sidebar | Fast Notes are both rated 5.0 out of 5 on the App Store, from 3 and 7 ratings respectively.

### Do BatteryFull + (Alarm) or Sidebar | Fast Notes have ads?

Neither BatteryFull + (Alarm) nor Sidebar | Fast Notes shows ads.

### Which is updated more often, BatteryFull + (Alarm) or Sidebar | Fast Notes?

BatteryFull + (Alarm) ships an update monthly, and Sidebar | Fast Notes every 3 months. Most recently, BatteryFull + (Alarm) was updated on October 14, 2026 and Sidebar | Fast Notes on October 7, 2026.

---

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