Comparison

Sigma Counter vs CountThings By Camera

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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'.

About

CountThings By Camera

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
Read full description

【Introduction】 The precise point camera uses artificial intelligence combined with mobile apps, integrates computer vision capabilities into the mobile phone, can perform artificial intelligence analysis on the picture, and calculate the number of items in the picture. Compared with traditional image recognition, it has many advantages. 【Function】 1. Provide a constantly updated template library, users can select templates that meet their own requirements for statistics through the template library. 2. Provide two identification methods: taking pictures and selecting from albums 3. Provide area circle selection function to identify more accurately and quickly 4. Provide manual correction function, you can manually correct the results 5. Provide a history record function, you can save the results for later viewing 6. Provide a variety of items at the same time statistics function. 【Features/Advantages】 1. There is no requirement for the background of the picture. Traditional image recognition has very strict requirements on the background of the picture, and it can only be recognized under the background of a solid color. The precision point camera adopts a new generation of artificial intelligence counting, and there is no requirement for the background of the picture. 2. It has strong interference to the debris pit in the picture, the target object can be easily identified in the complex picture, and has a strong filtering effect on other debris interference. 3. There is no requirement for the size of the object, and items of various sizes can be counted, and there will be no wrong statistics due to size differences 4. Multi-class statistics, you can count a variety of classified items at one time, and calculate the number of each classified item. 5. Accurate statistics on complex items of various forms, and can count items with various forms, such as complex items such as people, can also be accurately counted. 6. Multi-classified nuanced statistics. It is possible to perform classification statistics on two very similar items, such as whether the medicine is defective. 【Currently supported items】 1. Agriculture and forestry: rice, red beans, black beans, soybeans, logs, Arabidopsis, peas 2. Breeding: small river shrimp, various sizes of fry, shrimp fry, fish eggs 3. Construction: steel bars, steel pipes 4. Biomedicine: bacterial colonies, cells 5. Society: people, bamboo sticks 6. More items are being supported, and you can also put forward your own needs in the software if necessary.

Screenshots

Sigma Counter4 screens
CountThings By Camera4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
Sigma Counter versus CountThings By Camera: the parameters behind the verdict, then further details
ParameterSigma CounterCountThings By Camera
PriceFreeFree
Rating4.8 (6 ratings) — better4.5 (41 ratings)
Positive reviews100.0% of reviews — better82.8% of reviews
Number of ratings641 — better
Update frequencyEvery 52 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS9.0 — better14.0
Further details — not scored
Size11 MB15 MB
Age rating4+4+
DeveloperKaren Grigorian长松 孙

Customer experience

Sigma Counter

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

CountThings By Camera

All ratings41 ratings
Positive87.8%
Neutral0.0%
Negative12.2%
Written reviews29 reviews
Positive82.8%
Neutral0.0%
Negative17.2%

In-app purchases

None

Sigma Counter

No in-app purchases

11 purchases

CountThings By Camera

One-time11
  • 10 times card$0.99
  • day card$1.99
  • 100 times card$4.99
Show 8 more
  • monthly card(30 times per day)$4.99
  • month card(100 times per day)$5.99
  • annual card(30 times per day)$14.99
  • month card(300 times per day)$19.99
  • 1000 times card$29.99
  • annual card(100 times per day)$29.99
  • monthly card$29.99
  • annual card(300 times per day)$79.99

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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