Comparison

StackerTools Coin and Bar Test vs Egg Calendar

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

Head to head
About

StackerTools Coin and Bar Test

Detect counterfeit precious metals like gold, silver, and bullion using sound. This tool acts as a bar and coin tester, helping you verify authenticity.

Highlights
  • Counterfeit detection
  • Verify gold coins
  • Verify silver coins
  • Test bullion
  • Sound-based analysis
  • Bar and coin tester
Features
Read full description

Counterfeit Detection: Verify Gold Coins, Silver Coins, Rounds and Bars with Sound. StackerTools is a coin and bar tester that listens to the “ping” of your precious metals. Gently tap a coin and the app compares its ring with verified genuine examples, or tests it against a physics-backed acoustic model. The app is 100% included with the Pocket Pinger. The password is in the Bonus Pack. WHAT YOU CAN TEST • Gold and silver bullion coins such as American Eagles, Maple Leafs, Krugerrands and more • Silver rounds and 1 oz silver bars • Many other items and tests available, with more coming HOW IT WORKS Pick your coin or bar from the catalog, or search for it. Tap Start and gently ping the item. See the result in seconds: PASS, OK, CAUTION, or FAIL, with tips when a retest is needed. TEST MODES • Peaks: checks the item’s key ring tones • Run: tests several pings in a row • Pro: adds ping-time checks plus size and weight • Acoustic Models: measure your items for custom tests MORE FEATURES • Bookmark Favorites to find the items you test most • Search the catalog, with “See All” keeping your search • Sync the catalog to your phone for offline testing • Get Paid: upload test data and photos, or post new items to the catalog Questions? We’re here to help: Support@StackerTools.com

About

Egg Calendar

Easily track your daily egg harvest, monitor flock performance with detailed analytics, and even use AI to count your eggs from a photo. The app also includes weather forecasts and a flock photo album.

Highlights
  • Daily egg logging with quick or bulk entry
  • Production analytics and performance charts
  • AI-powered egg counting from photos
  • Integrated weather forecast
  • Flock photo album with AI descriptions
  • Printable PDF reports
  • Flock event logging
Features
Read full description

Egg Calendar — Track Your Daily Egg Harvest Egg Calendar is the complete egg collection tracker for backyard chicken keepers. Whether you have 3 hens or 300, Egg Calendar makes it easy to log your daily harvest, understand your flock's performance, and share your results. DAILY EGG LOGGING Tap any day on the calendar to log your egg count. Use Quick Mode for fast single-tap entry, or switch to Bulk Entry for spreadsheet-style input across the whole month. Your data is saved instantly and synced to your account. PRODUCTION ANALYTICS See your flock's performance at a glance. Track monthly totals, daily averages, laying rate, best days, streaks, and estimated revenue. Interactive charts show daily collection trends and monthly comparisons across the full year. AI EGG COUNTER Take a photo of your egg basket and let the AI count them for you. Egg Calendar uses artificial intelligence to detect and count eggs in your photo, then automatically updates your daily total — no manual entry needed. WEATHER FORECAST Check today's weather and the 7-day forecast right inside the app. Cold snaps and heat waves affect laying rates — now you can track both in one place. FLOCK PHOTOS Build a photo album of your flock. Add captions, locations, and dates to each photo. The AI generates a description of every photo automatically, creating a living record of your flock's story. PRINT REPORTS Generate a professional PDF report for any date range — monthly, quarterly, or custom. Perfect for farm records, tax documentation, or sharing with your vet. FLOCK EVENTS Log important flock events like new chicks, molting, illness, or predator incidents alongside your egg data. See the full picture of your flock's history. Egg Calendar is designed for backyard farmers, homesteaders, and small-scale poultry keepers who want a simple, beautiful way to stay on top of their flock's production. Download Egg Calendar and start tracking today.

Screenshots

StackerTools Coin and Bar Test4 screens
Egg Calendar4 screens

Verdict

The call

The clearest difference is price: StackerTools Coin and Bar Test at Free against Egg Calendar's $1.99. StackerTools Coin and Bar Test also leads on ratings volume (44 vs 2). Egg Calendar's advantage is rating (5.0 vs 4.5) and update cadence (every 8 days vs every 3 weeks). On ads, in-app purchases, device support and iOS requirement 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

StackerTools Coin and Bar Test is free to download; Egg Calendar costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Egg Calendar holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: StackerTools Coin and Bar Test has 44 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

StackerTools Coin and Bar Test ships an update every 3 weeks, Egg Calendar every 8 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
StackerTools Coin and Bar Test versus Egg Calendar: the parameters behind the verdict, then further details
ParameterStackerTools Coin and Bar TestEgg Calendar
PriceFree — better$1.99
Rating4.5 (44 ratings)5.0 (2 ratings) — better
Positive reviews88.9% of reviews—
Number of ratings44 — better2
Update frequencyEvery 3 weeksEvery 8 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.0
Further details — not scored
Size31 MB2 MB
Age rating4+4+
DeveloperSoundMoneyMetalsNICHOLAS DANIEL BARELA

Customer experience

StackerTools Coin and Bar Test

All ratings44 ratings
Positive86.4%
Neutral2.3%
Negative11.4%
Written reviews18 reviews
Positive88.9%
Neutral5.6%
Negative5.6%

Egg Calendar

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

StackerTools Coin and Bar Test

No in-app purchases

None

Egg Calendar

No in-app purchases

Questions

Is StackerTools Coin and Bar Test free?
StackerTools Coin and Bar Test is free to download, with no in-app purchases.
Is Egg Calendar free?
Egg Calendar costs $1.99, with no in-app purchases.
Which has better reviews, StackerTools Coin and Bar Test or Egg Calendar?
Egg Calendar is rated higher. StackerTools Coin and Bar Test averages 4.5 out of 5 from 44 ratings, while Egg Calendar averages 5.0 from 2 ratings.
Do StackerTools Coin and Bar Test or Egg Calendar have ads?
Neither StackerTools Coin and Bar Test nor Egg Calendar shows ads.
Which is updated more often, StackerTools Coin and Bar Test or Egg Calendar?
StackerTools Coin and Bar Test ships an update every 3 weeks, and Egg Calendar every 8 days. Most recently, StackerTools Coin and Bar Test was updated on October 25, 2026 and Egg Calendar on October 24, 2026.

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