# S7 Link vs POWERBELY

The clearest difference is price: POWERBELY at Free against S7 Link's $14.99. POWERBELY also leads on in-app purchases (none vs 3) and update cadence (every 2 weeks vs every 4 months). On ads and device support there is nothing between them.

POWERBELY is free to download; S7 Link costs $14.99 up front. S7 Link sells 3 one-off in-app purchases. POWERBELY asks for nothing beyond the download.

S7 Link ships an update every 4 months, POWERBELY every 2 weeks. The most recent releases landed on November 10, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | S7 Link | POWERBELY |
| --- | --- | --- |
| Price | $14.99 | **Free** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Size | 10 MB | 14 MB |
| Requires iOS | 26.0 | **11.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carlo Trotti](https://appshunter.io/developer/594070838) | [Shenzhen Bely Energy Technology Co., Ltd.](https://appshunter.io/developer/1555631882) |

## What reviewers say

### S7 Link

[App page](https://appshunter.io/ios/app/s7-link/id594070835)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Alarms | $2.99 | one-time |
| Charts | $2.99 | one-time |
| OPC Client | $4.99 | one-time |


### POWERBELY

[App page](https://appshunter.io/ios/app/powerbely/id1658489436)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is S7 Link free?

S7 Link costs $14.99, and also offers in-app purchases.

### Is POWERBELY free?

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

### Do S7 Link or POWERBELY have ads?

Neither S7 Link nor POWERBELY shows ads.

### Which is updated more often, S7 Link or POWERBELY?

S7 Link ships an update every 4 months, and POWERBELY every 2 weeks. Most recently, S7 Link was updated on November 10, 2026 and POWERBELY on November 7, 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.*