# Finder vs Duovigintuple Calc

The clearest difference is in-app purchases: Duovigintuple Calc at none against Finder's 7. Duovigintuple Calc also leads on update cadence (every 2 weeks vs every 15 months). Finder's advantage is iOS requirement (13.0 vs 15.8.3). On price, ads and device support there is nothing between them.

Both are free to download. Finder sells 7 in-app purchases, starting at $2.99 per 7 days. Duovigintuple Calc asks for nothing beyond the download.

Finder ships an update every 15 months, Duovigintuple Calc every 2 weeks. The most recent releases landed on September 22, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Finder | Duovigintuple Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (235 ratings)](https://appshunter.io/ios/app/finder-reverse-image-search/id6450782443/reviews)** | — |
| Number of ratings | **235** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 15 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 34 MB | 36 MB |
| Requires iOS | **13.0** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [WeBrain](https://appshunter.io/developer/1578514377) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Finder

[App page](https://appshunter.io/ios/app/finder-reverse-image-search/id6450782443)

Explore the digital world using visual search. Upload photos from your device or via URL to find similar images across multiple search engines. Features include image editing and search history.

**Highlights:** Multi-engine image search, Search from camera or library, Search by URL, Search by words, Image cropping and rotation, Search history

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Image Search | $2.99 | per 7 days |
| Reverse Image Search | $2.99 | per 7 days |
| Photo Search | $5.99 | per month |
| Search by Image | $5.99 | per month |
| Image Search | $7.99 | per year |
| Google Lens for Iphone | $9.99 | per year |
| Google Photo Search | $15.99 | per year |


### Duovigintuple Calc

[App page](https://appshunter.io/ios/app/duovigintuple-calc/id6742525847)

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

**In-app purchases:** none


## Frequently asked questions

### Is Finder free?

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

### Is Duovigintuple Calc free?

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

### Do Finder or Duovigintuple Calc have ads?

Both Finder and Duovigintuple Calc show ads.

### Which is updated more often, Finder or Duovigintuple Calc?

Finder ships an update every 15 months, and Duovigintuple Calc every 2 weeks. Most recently, Finder was updated on September 22, 2026 and Duovigintuple Calc on September 9, 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.*