# PVbutler vs Spenzi

The clearest difference is in-app purchases: PVbutler at none against Spenzi's 3. PVbutler also leads on device support (3 vs 1) and iOS requirement (12.0 vs 17.0). Spenzi's advantage is update cadence (every 3 days vs every 3 months). On price and ads there is nothing between them.

Both are free to download. Spenzi sells 3 in-app purchases, starting at $1.99 per month. PVbutler asks for nothing beyond the download.

PVbutler ships an update every 3 months, Spenzi every 3 days. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | PVbutler | Spenzi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (15 ratings)](https://appshunter.io/ios/app/pvbutler/id1418322399/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 17.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 214 MB | 4 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Growatt New Energy Technology Co.,Ltd](https://appshunter.io/developer/1135731820) | [Dinh Trong Tu](https://appshunter.io/developer/1457011154) |

## 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


### Spenzi

[App page](https://appshunter.io/ios/app/spenzi-expense-tracker/id6747108992)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| $1.99 | $1.99 | per month |
| $19.99 | $19.99 | per year |
| $59.99 | $59.99 | one-time |


## Frequently asked questions

### Is PVbutler free?

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

### Is Spenzi free?

Spenzi is free to download, with in-app purchases available.

### Do PVbutler or Spenzi have ads?

Neither PVbutler nor Spenzi shows ads.

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

PVbutler ships an update every 3 months, and Spenzi every 3 days. Most recently, PVbutler was updated on October 29, 2026 and Spenzi on October 30, 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.*