# S vs Vowly

The clearest difference is price: S at Free against Vowly's $0.99. S also leads on ratings volume (15 vs 1) and iOS requirement (15.0 vs 18.0). Vowly's advantage is rating (5.0 vs 4.3) and review sentiment (100% vs 66%). On ads, in-app purchases and device support there is nothing between them.

S is free to download; Vowly costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Vowly holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: S has 15 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 66% of S's written reviews are positive against 100% of Vowly's.

S ships an update monthly, Vowly daily. The most recent releases landed on November 11, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | S | Vowly |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.3 (15 ratings)](https://appshunter.io/ios/app/s-miles-installer/id1544207772/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/vowly/id6758328199/reviews)** |
| Number of ratings | **15** | 1 |
| Positive reviews | 65.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | **Free** | Paid |
| Size | 224 MB | 21 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hoymiles Power Electronics Inc.](https://appshunter.io/developer/1219594358) | [Petrus Arnoldus van Zyl](https://appshunter.io/developer/1641254381) |

## What reviewers say

### S

[App page](https://appshunter.io/ios/app/s-miles-installer/id1544207772)

This app helps installers of distributed PV power plants manage accounts and provides visual guides for microinverter installation. It offers rapid configuration, power generation data, and detailed alarm information for commissioning and diagnostics.

**Highlights:** Account monitoring, Visual installation guide, Microinverter configuration, Power generation data, Module-level data, Alarm information, Commissioning & diagnostics

**Features:** macOS Compatibility

**In-app purchases:** none


### Vowly

[App page](https://appshunter.io/ios/app/vowly/id6758328199)

This app helps you plan your wedding with ease, keeping you organized and in control throughout the process. It provides a central place for all your wedding planning needs, from the initial stages to the final countdown.

**Highlights:** Wedding planning organization, Stress reduction, Centralized information, User-friendly interface, Countdown feature

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

**In-app purchases:** none


## Frequently asked questions

### Is S free?

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

### Is Vowly free?

Vowly costs $0.99, with no in-app purchases.

### Which has better reviews, S or Vowly?

Vowly is rated higher. S averages 4.3 out of 5 from 15 ratings, while Vowly averages 5.0 from 1 ratings.

### Do S or Vowly have ads?

Neither S nor Vowly shows ads.

### Which is updated more often, S or Vowly?

S ships an update monthly, and Vowly daily. Most recently, S was updated on November 11, 2026 and Vowly on October 31, 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.*