# Nitefall vs Vigintuple Calc

The clearest difference is in-app purchases: Vigintuple Calc at none against Nitefall's 10. Nitefall's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Nitefall sells 10 in-app purchases, starting at $1.49 per month. Vigintuple Calc asks for nothing beyond the download.

Nitefall ships an update every 11 days, Vigintuple Calc every 2 weeks. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Nitefall | Vigintuple Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (289 ratings)](https://appshunter.io/ios/app/nitefall-browser-dark-mode/id1575190591/reviews)** | — |
| Number of ratings | **289** | — |
| Positive reviews | 53.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 11 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 19 MB | 36 MB |
| Requires iOS | **15.4** | 15.8.3 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FoxfortMobile](https://appshunter.io/developer/1544295696) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Nitefall

[App page](https://appshunter.io/ios/app/nitefall-browser-dark-mode/id1575190591)

This Safari extension automatically applies a dark mode to all websites, reducing eye strain, especially during nighttime use. It seamlessly integrates with your system's appearance settings and offers customizable themes and per-site adjustments for optimal viewing.

**Highlights:** Automatic dark mode for all websites, System appearance integration, Multiple dark themes, Blacklist specific websites, Adjust image brightness per site

**Features:** Safari Extension, Family Sharing, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly 3 | $1.49 | per month |
| Premium Weekly | $1.99 | per 7 days |
| Premium Monthly | $2.00 | per month |
| Premium Monthly | $3.99 | per month |
| Premium Yearly | $10.00 | per year |
| Premium Yearly 3 | $15.00 | per year |
| Nitefall Premium Yearly 2 | $20.00 | per year |
| Lifetime offer 2 | $13.00 | one-time |
| Lifetime Access | $20.00 | one-time |
| Use on unlimited websites | $25.00 | one-time |

**What reviewers like**

- 👁️ Reduces eye strain at night
- 🎨 Comprehensive dark mode implementation
- ⚡ Smooth performance without flickering
- 🔧 Customizable settings per website
- 📱 Works seamlessly with Safari

**What reviewers complain about**

- 💰 Aggressive paywall after limited trial
- 🚫 Only 15-25 free websites before paywall
- 🔐 Requires extensive browser permissions
- ⚠️ Privacy concerns with data access
- 📊 Misleading 'free' app labeling

**Reported bugs**

- Black text appears on dark backgrounds (unreadable)
- Images not displaying correctly
- Gmail inbox not visible with extension enabled
- Performance issues on complex websites
- Breaks Google Images functionality

**Requested features**

- Website exception list management
- Per-website preference saving for subdomains
- Automatic dark mode detection
- One-time purchase option instead of subscription
- Better text contrast on certain sites


### Vigintuple Calc

[App page](https://appshunter.io/ios/app/vigintuple-calc/id6742297464)

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

**In-app purchases:** none


## Frequently asked questions

### Is Nitefall free?

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

### Is Vigintuple Calc free?

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

### Do Nitefall or Vigintuple Calc have ads?

Vigintuple Calc shows ads; Nitefall does not.

### Which is updated more often, Nitefall or Vigintuple Calc?

Nitefall ships an update every 11 days, and Vigintuple Calc every 2 weeks. Most recently, Nitefall was updated on November 7, 2026 and Vigintuple Calc on November 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*