# Reverse vs Duovigintuple Calc

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

Both are free to download. Reverse sells 2 in-app purchases, starting at $8.99 per month. Duovigintuple Calc asks for nothing beyond the download.

Reverse ships an update every 2 months, Duovigintuple Calc every 2 weeks. The most recent releases landed on October 4, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Reverse | Duovigintuple Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (5.1K ratings)](https://appshunter.io/ios/app/reverse-image-search/id1534893871/reviews)** | — |
| Number of ratings | **5.1K** | — |
| Positive reviews | 32.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 102 MB | 36 MB |
| Requires iOS | **14.0** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Yogesh Ukani](https://appshunter.io/developer/1463010380) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Reverse

[App page](https://appshunter.io/ios/app/reverse-image-search/id1534893871)

This utility app allows you to search for images using multiple search engines like Google, Bing, Yandex, and TinEye. It helps verify photo sources, find similar products, and discover information about images from your gallery or camera.

**Highlights:** Reverse image search, Search via gallery or camera, Multi-engine search (Google, Bing, Yandex, TinEye), Search history, Image editor, Share extension for direct search

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reverse - Premium Monthly | $8.99 | per month |
| Reverse App PRO | $4.99 | one-time |

**What reviewers like**

- 🔍 Effective reverse image search
- 🔍 Helpful for identifying scams
- 🔍 Useful for finding similar images

**What reviewers complain about**

- 💸 Expensive subscription required
- 🚫 Limited functionality in free version
- 📢 Excessive ads and pop-ups
- 🐛 Inconsistent and unreliable search results

**Reported bugs**

- Frequent crashes and freezes
- Inability to cancel subscription
- Incompatibility with certain devices and image formats

**Requested features**

- Dark mode option
- Improved search accuracy and reliability
- More free search capabilities


### 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 Reverse free?

Reverse 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 Reverse or Duovigintuple Calc have ads?

Both Reverse and Duovigintuple Calc show ads.

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

Reverse ships an update every 2 months, and Duovigintuple Calc every 2 weeks. Most recently, Reverse was updated on October 4, 2026 and Duovigintuple Calc on September 27, 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.*