# Sigma Counter vs Image

The clearest difference is ads: Sigma Counter at none against Image's shown. Sigma Counter also leads on iOS requirement (9.0 vs 17.7.2). Image's advantage is update cadence (fortnightly vs every 52 months). On price, 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.

Sigma Counter ships an update every 52 months, Image fortnightly. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Sigma Counter | Image |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (7 ratings)](https://appshunter.io/ios/app/sigma-counter/id1180349975/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 52 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 11 MB | 134 MB |
| Requires iOS | **9.0** | 17.7.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Karen Grigorian](https://appshunter.io/developer/948320401) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Sigma Counter

[App page](https://appshunter.io/ios/app/sigma-counter/id1180349975)

Easily count objects in your photos by tapping them. Save and share your counted images via email or social networks. Utilize specialized tools for marking sequential or grid-like object arrangements.

**Highlights:** Tap to count objects, Use photos from library or new photos, Save and share counted images, Line tool for sequential objects, Multiplication tool for grid layouts

**Features:** macOS Compatibility

**In-app purchases:** none


### Image

[App page](https://appshunter.io/ios/app/image-similarity/id6511212926)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sigma Counter free?

Sigma Counter is free to download, with no in-app purchases.

### Is Image free?

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

### Do Sigma Counter or Image have ads?

Image shows ads; Sigma Counter does not.

### Which is updated more often, Sigma Counter or Image?

Sigma Counter ships an update every 52 months, and Image fortnightly. Most recently, Sigma Counter was updated on October 24, 2026 and Image on October 17, 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.*