CountRods vs Sigma Counter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CountRods
Quickly count stacks of solid-face bars, rebars, and rods using your mobile device. Simply photograph the stack and let advanced computer vision technology do the counting. Easily verify and adjust counts for accuracy.
- Automated rod counting via photo
- Computer vision technology
- Number tagging for verification
- Manual count adjustment
- Custom counting template creation
- Machine Learning identification
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Now you can count stacks of solid-face bars, rebars and rods quickly from your mobile device. Simply open the CountRods app, take a photo of the stack you would like to count and press the “Count” button. Using advanced computer vision technology, CountRods tags each counted rod 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. Get the app for free and start counting up to 10 rods 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 rods you would like to count per photo. The CountRods app uses Machine Learning technology to identify and count rods. If the images of your rods differ from the images the app was "trained" to recognize, we will need to craft a Counting Template specifically for you. In order to proceed, send us some sample images of rods you would like to count. 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 rating: Sigma Counter at 4.8 against CountRods's 1.0. Sigma Counter also leads on ratings volume (6 vs 1). CountRods's advantage is update cadence (every 2 weeks vs every 52 months). On price, ads, in-app purchases and monetization model 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 1.0. That said, the two scores are not equally well evidenced: Sigma Counter has 6 ratings behind it against 1, so its average is the more settled of the two.
CountRods ships an update every 2 weeks, Sigma Counter every 52 months. The most recent releases landed on August 16, 2026 and June 1, 2026 respectively.
| Parameter | CountRods | Sigma Counter |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.8 (6 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 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 | 33 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Dynamic Ventures, Inc. | Karen Grigorian |
Customer experience
CountRods
Sigma Counter
In-app purchases
CountRods
No in-app purchases
Sigma Counter
No in-app purchases
