# Sightmark Generator vs Dura i

The clearest difference is price: Dura i at Free against Sightmark Generator's $0.99. Dura i also leads on iOS requirement (13.4 vs 15.0). Sightmark Generator's advantage is update cadence (fortnightly vs every 3 months). On ads, in-app purchases and device support there is nothing between them.

Dura i is free to download; Sightmark Generator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sightmark Generator ships an update fortnightly, Dura i every 3 months. The most recent releases landed on October 10, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Sightmark Generator | Dura i |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | — | Free |
| Size | 2 MB | 46 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Symon Davis](https://appshunter.io/developer/1536801518) | [Puredrive Energy Ltd](https://appshunter.io/developer/1536396853) |

## What reviewers say

### Sightmark Generator

[App page](https://appshunter.io/ios/app/sightmark-generator/id1536801516)

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

**In-app purchases:** none


### Dura i

[App page](https://appshunter.io/ios/app/dura-i/id6498981397)

Monitor your photovoltaic (PV) plant and inverter meter parameters locally or remotely. Adjust settings for your PV system with this utility application.

**Highlights:** PV plant monitoring, PV inverter meter monitoring, Parameter tracking, Local settings, Remote settings

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

**In-app purchases:** none


## Frequently asked questions

### Is Sightmark Generator free?

Sightmark Generator costs $0.99, with no in-app purchases.

### Is Dura i free?

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

### Do Sightmark Generator or Dura i have ads?

Neither Sightmark Generator nor Dura i shows ads.

### Which is updated more often, Sightmark Generator or Dura i?

Sightmark Generator ships an update fortnightly, and Dura i every 3 months. Most recently, Sightmark Generator was updated on October 10, 2026 and Dura i on October 14, 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.*