# Reverse Image Search vs Duovigintuple Calc

The clearest difference is ads: Reverse Image Search at none against Duovigintuple Calc's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Reverse Image Search ships an update every 9 days, Duovigintuple Calc every 2 weeks. The most recent releases landed on September 23, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Reverse Image Search | Duovigintuple Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1.4K ratings)](https://appshunter.io/ios/app/reverse-image-search-rimg/id1620042603/reviews)** | — |
| Number of ratings | **1.4K** | — |
| Positive reviews | 60.3% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Monetization | Free | — |
| Size | 8 MB | 36 MB |
| Requires iOS | **15.0** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Wios](https://appshunter.io/developer/1565217092) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Reverse Image Search

[App page](https://appshunter.io/ios/app/reverse-image-search-rimg/id1620042603)

Search the web using images instead of text. This tool aggregates results from multiple popular reverse image search engines, helping you find information, identify objects, and discover sources quickly and efficiently.

**Highlights:** Search using images, Multiple search engine results, Image from gallery, URL, or clipboard, Take photo for search, Identify objects and people, Compare search engine results

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Fast search results
- 💡 Useful for identifying items
- 🚀 Provides multiple search engine options

**What reviewers complain about**

- 🐛 Crashes or freezes
- 🐛 Inaccurate or irrelevant search results
- 🐛 Doesn't work as expected
- 🔒 Privacy concerns

**Reported bugs**

- Crashes on launch
- Fails to load images
- Inconsistent search results

**Requested features**

- Save search engine preferences
- Add voice search functionality
- Improve accuracy of image identification


### 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 Image Search free?

Reverse Image Search is free to download, with no in-app purchases.

### Is Duovigintuple Calc free?

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

### Do Reverse Image Search or Duovigintuple Calc have ads?

Duovigintuple Calc shows ads; Reverse Image Search does not.

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

Reverse Image Search ships an update every 9 days, and Duovigintuple Calc every 2 weeks. Most recently, Reverse Image Search was updated on September 23, 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.*