Comparison

Sigma Counter vs LeafDetect

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

LeafDetect

Features
Read full description

LeafDetect instantly identifies plants, flowers, and trees from a single photo using advanced AI technology. Simply point your camera at any plant — or pick a photo from your library — and get accurate identification results in seconds. LeafDetect recognizes thousands of species and provides detailed information including scientific name, family, genus, and practical care tips. HOW IT WORKS • Snap a photo of any leaf, flower, bark, or whole plant • AI analyzes the image and returns the most likely species • View detailed plant profiles with care instructions KEY FEATURES ◆ Instant AI Identification Take a photo or choose from your gallery. LeafDetect uses state-of-the-art AI to identify the plant species with high confidence scores. ◆ Detailed Plant Profiles Get comprehensive information for each identified plant: scientific name, common name, family, genus, and tailored care guidance (watering, sunlight, soil, temperature). ◆ Your Personal Garden Save identified plants to your garden collection. Track watering schedules, monitor plant health, and get care reminders. ◆ Plant Health Diagnosis Chat with AI to diagnose plant diseases and get treatment recommendations. ◆ Community Share your plant discoveries, connect with other plant enthusiasts, and learn from the community. ◆ Scan History & Library Every scan is automatically saved. Browse your personal plant collection, add notes, and mark favorites for quick access. ◆ No Account Required Start identifying plants immediately. No sign-up, no login. Your scan history stays on your device. ◆ Privacy First Photos are processed solely for identification and are not stored on any server. No trackers, no location data collected. ◆ Beautiful Dark UI A modern, nature-inspired interface designed for comfortable use day and night. ◆ Multi-language Support Available in Vietnamese and English. PERFECT FOR • Gardeners wanting to identify unknown plants • Hikers and nature lovers exploring trails • Students studying botany and biology • Parents teaching kids about nature • Anyone curious about the plants around them IMPORTANT NOTE AI identification is for informational purposes only. Never use LeafDetect to determine if a plant is safe to eat, touch, or feed to animals. Always consult a qualified expert for safety decisions. Policy URL: https://sites.google.com/view/leaflens-policy Term URL: https://sites.google.com/view/leaflens-terms

Screenshots

Sigma Counter4 screens
LeafDetect4 screens

Verdict

The call

The clearest difference is in-app purchases: Sigma Counter at none against LeafDetect's 3. Sigma Counter also leads on iOS requirement (9.0 vs 15.6). LeafDetect's advantage is update cadence (fortnightly vs every 52 months). 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. LeafDetect sells 3 in-app purchases, starting at $3.99 per 7 days. Sigma Counter asks for nothing beyond the download.

UpkeepUpdate frequency

Sigma Counter ships an update every 52 months, LeafDetect fortnightly. The most recent releases landed on June 1, 2026 and September 12, 2026 respectively.

Scorecard3 real differences · 7 level
Sigma Counter versus LeafDetect: the parameters behind the verdict, then further details
ParameterSigma CounterLeafDetect
PriceFreeFree
Rating4.8 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 52 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS9.0 — better15.6
Further details — not scored
Size11 MB48 MB
Age rating4+4+
DeveloperKaren GrigorianPham Dinh Sy

In-app purchases

None

Sigma Counter

No in-app purchases

3 purchases

LeafDetect

Subscriptions3
  • Weekly Subscription$3.997 Days
  • Yearly Subscription Sale$29.991 Year
  • Yearly Subscription3 Days trial$39.991 Year

Questions

Is Sigma Counter free?
Sigma Counter is free to download, with no in-app purchases.
Is LeafDetect free?
LeafDetect is free to download, with in-app purchases available.
Do Sigma Counter or LeafDetect have ads?
Neither Sigma Counter nor LeafDetect shows ads.
Which is updated more often, Sigma Counter or LeafDetect?
Sigma Counter ships an update every 52 months, and LeafDetect fortnightly. Most recently, Sigma Counter was updated on June 1, 2026 and LeafDetect on September 12, 2026.

Other comparisons