# Sigma Counter vs CountThings By Camera

The clearest difference is in-app purchases: Sigma Counter at none against CountThings By Camera's 11. Sigma Counter also leads on rating (4.8 vs 4.5) and review sentiment (100% vs 83%). CountThings By Camera's advantage is update cadence (every 5 weeks vs every 52 months) and ratings volume (41 vs 6). On price, ads and device support there is nothing between them.

Both are free to download. CountThings By Camera sells 11 one-off in-app purchases. Sigma Counter asks for nothing beyond the download.

Sigma Counter holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: CountThings By Camera has 41 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 100% of Sigma Counter's written reviews are positive against 83% of CountThings By Camera's.

Sigma Counter ships an update every 52 months, CountThings By Camera every 5 weeks. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Sigma Counter | CountThings By Camera |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/sigma-counter/id1180349975/reviews)** | [4.5 (41 ratings)](https://appshunter.io/ios/app/countthings-by-camera/id1627219849/reviews) |
| Number of ratings | 6 | **41** |
| Positive reviews | **100.0% of reviews** | 82.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 52 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 11 MB | 15 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Karen Grigorian](https://appshunter.io/developer/948320401) | [长松 孙](https://appshunter.io/developer/1626925849) |

## 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


### CountThings By Camera

[App page](https://appshunter.io/ios/app/countthings-by-camera/id1627219849)

This app uses AI and computer vision to automatically count items in photos. It offers a vast template library, supports both new photos and existing albums, and provides manual correction for accuracy. It can count various items simultaneously, even in complex backgrounds.

**Highlights:** AI-powered item counting, Extensive template library, Photo and album input, Area selection for accuracy, Manual correction, History records, Multi-item and multi-class statistics

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 times card | $0.99 | one-time |
| day card | $1.99 | one-time |
| 100 times card | $4.99 | one-time |
| monthly card(30 times per day) | $4.99 | one-time |
| month card(100 times per day) | $5.99 | one-time |
| annual card(30 times per day) | $14.99 | one-time |
| month card(300 times per day) | $19.99 | one-time |
| 1000 times card | $29.99 | one-time |
| annual card(100 times per day) | $29.99 | one-time |
| monthly card | $29.99 | one-time |
| annual card(300 times per day) | $79.99 | one-time |


## Frequently asked questions

### Is Sigma Counter free?

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

### Is CountThings By Camera free?

CountThings By Camera is free to download, with in-app purchases available.

### Which has better reviews, Sigma Counter or CountThings By Camera?

Sigma Counter is rated higher. Sigma Counter averages 4.8 out of 5 from 6 ratings, while CountThings By Camera averages 4.5 from 41 ratings.

### Do Sigma Counter or CountThings By Camera have ads?

Neither Sigma Counter nor CountThings By Camera shows ads.

### Which is updated more often, Sigma Counter or CountThings By Camera?

Sigma Counter ships an update every 52 months, and CountThings By Camera every 5 weeks. Most recently, Sigma Counter was updated on October 7, 2026 and CountThings By Camera on October 12, 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.*