# Synapse vs Battery Phone Guard + Widget

The clearest difference is in-app purchases: Synapse at none against Battery Phone Guard + Widget's 3. Battery Phone Guard + Widget's advantage is update cadence (weekly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Battery Phone Guard + Widget sells 3 in-app purchases, starting at $2.99 per month. Synapse asks for nothing beyond the download.

Synapse ships an update every 2 months, Battery Phone Guard + Widget weekly. The most recent releases landed on October 27, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Synapse | Battery Phone Guard + Widget |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (41 ratings)](https://appshunter.io/ios/app/battery-phone-guard-plus-widget/id6472619156/reviews)** |
| Number of ratings | — | **41** |
| Positive reviews | — | 57.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 60 MB | 22 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Zinc Digital](https://appshunter.io/developer/1147605401) | [Bytehood](https://appshunter.io/developer/1710448517) |

## What reviewers say

### Synapse

[App page](https://appshunter.io/ios/app/synapse-vm/id1579685518)

**Features:** macOS Compatibility

**In-app purchases:** none


### Battery Phone Guard + Widget

[App page](https://appshunter.io/ios/app/battery-phone-guard-plus-widget/id6472619156)

This utility app provides personalized sound alerts for your device's battery level. Set custom thresholds to receive notifications when your battery reaches specific percentages, ensuring you never miss a charge. It runs efficiently in the background with an easy-to-use interface.

**Highlights:** Custom charge thresholds, Personalized sound alerts, Background operation, User-friendly interface, Ad-free subscription option

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $6.99 | per year |
| Premium Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Synapse free?

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

### Is Battery Phone Guard + Widget free?

Battery Phone Guard + Widget is free to download, with in-app purchases available.

### Do Synapse or Battery Phone Guard + Widget have ads?

Neither Synapse nor Battery Phone Guard + Widget shows ads.

### Which is updated more often, Synapse or Battery Phone Guard + Widget?

Synapse ships an update every 2 months, and Battery Phone Guard + Widget weekly. Most recently, Synapse was updated on October 27, 2026 and Battery Phone Guard + Widget on November 4, 2026.

---

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