CountClusters vs Sigma Counter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CountClusters
Quickly count various objects using your mobile device by taking a photo and letting advanced computer vision technology tag and number each item. Easily fix mistakes and create custom counting templates for specialized items. Start with free object counting and upgrade for business use.
- Object counting via photos
- Advanced computer vision
- Numbered item tags
- Mistake correction
- Custom counting templates
- Free initial counting
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Now you can count different types of objects quickly from your mobile device. Simply open the CountClusters app, take a photo of the stack you would like to count and press the “Count” button. CountClusters counts more specialized items than the other apps in the CountingThings family of apps. Using advanced computer vision technology, CountClusters tags each counted item with a number so you can easily verify and document the results. Mistakes are easy to fix. Just review the count and adjust the tags to ensure accuracy. A counting template is required for each type of item you want counted. Send us a sample of relevant photos and in many cases, we will be able to create a counting template for you. (It is not always feasible to create a Counting Template.) Get the app for free and start counting up to 10 pre-defined objects per photo to see how it works. When you are ready to use the app for your business, create an account within the app and select a plan based on the number of items you would like to count per photo. Contact us for a custom demo with your photos plus a 14-day free trial.
Sigma Counter
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.
- 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
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Take a new photo or pick a photo from your photo library and then count objects on it by tapping them. Save screenshots and/or share them via email or social networks. Use the Line tool when you need to mark a sequence of objects with equal distances between them (note: this doesn't work well with object viewed in perspective). Use the Multiplication tool to count objects positioned in 'rows' and 'columns'.
Screenshots
Verdict
The clearest difference is review sentiment: Sigma Counter at 100% against CountClusters's 0%. Sigma Counter also leads on rating (4.8 vs 2.0). CountClusters's advantage is update cadence (every 2 weeks vs every 52 months). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sigma Counter holds the better App Store score, 4.8 against 2.0. Both are backed by a comparable volume of ratings — 4 and 6 respectively. Written reviews point the same way: 0% of CountClusters's written reviews are positive against 100% of Sigma Counter's.
CountClusters ships an update every 2 weeks, Sigma Counter every 52 months. The most recent releases landed on September 25, 2026 and October 7, 2026 respectively.
| Parameter | CountClusters | Sigma Counter |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (4 ratings) | 4.8 (6 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 | 6 — better |
| Update frequency | Every 2 weeks — better | Every 52 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 | 9.0 |
| Further details — not scored | ||
| Size | 35 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Dynamic Ventures, Inc. | Karen Grigorian |
Customer experience
CountClusters
Sigma Counter
In-app purchases
CountClusters
No in-app purchases
Sigma Counter
No in-app purchases
