# PVbutler vs SAWAISP

The clearest difference is review sentiment: SAWAISP at 100% against PVbutler's 18%. SAWAISP also leads on rating (4.9 vs 2.9) and update cadence (monthly vs every 3 months). PVbutler's advantage is iOS requirement (12.0 vs 15.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SAWAISP holds the better App Store score, 4.9 against 2.9. Both are backed by a comparable volume of ratings — 15 and 7 respectively. Written reviews point the same way: 18% of PVbutler's written reviews are positive against 100% of SAWAISP's.

PVbutler ships an update every 3 months, SAWAISP monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | PVbutler | SAWAISP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (15 ratings)](https://appshunter.io/ios/app/pvbutler/id1418322399/reviews) | **[4.9 (7 ratings)](https://appshunter.io/ios/app/sawaisp/id6751338140/reviews)** |
| Number of ratings | **15** | 7 |
| Positive reviews | 17.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | Free |
| Size | 214 MB | 32 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Growatt New Energy Technology Co.,Ltd](https://appshunter.io/developer/1135731820) | [Ultrawares](https://appshunter.io/developer/1834664030) |

## What reviewers say

### PVbutler

[App page](https://appshunter.io/ios/app/pvbutler/id1418322399)

Monitor your photovoltaic plant's performance remotely. Access energy yield, income, and system status wirelessly. Requires registration with the Sacolar PV Data Center.

**Highlights:** Remote monitoring of photovoltaic plants, Access energy yield data, Track income generation, View system status, Wireless data access, Compatible with Sacolar PV Data Center

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

**In-app purchases:** none


### SAWAISP

[App page](https://appshunter.io/ios/app/sawaisp/id6751338140)

Manage your internet service effortlessly with this official app. Monitor your connection, track your plan, and receive important updates in real-time. Stay connected with ease and confidence.

**Highlights:** Effortless account management, Live service status monitoring, Subscription plan tracking, Usage history viewing, Renewal reminders, Important notification alerts

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

**In-app purchases:** none


## Frequently asked questions

### Is PVbutler free?

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

### Is SAWAISP free?

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

### Which has better reviews, PVbutler or SAWAISP?

SAWAISP is rated higher. PVbutler averages 2.9 out of 5 from 15 ratings, while SAWAISP averages 4.9 from 7 ratings.

### Do PVbutler or SAWAISP have ads?

Neither PVbutler nor SAWAISP shows ads.

### Which is updated more often, PVbutler or SAWAISP?

PVbutler ships an update every 3 months, and SAWAISP monthly. Most recently, PVbutler was updated on October 24, 2026 and SAWAISP 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.*