Comparison

Owl Pellet Activities vs Concentrations

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

Head to head
About

Owl Pellet Activities

This educational app aids in the observation and dissection of owl pellets, allowing users to identify bones and log data into a national database. It also provides bone diagrams, Barn Owl video, and interesting owl facts.

Highlights
  • Owl pellet dissection enhancement
  • Bone identification
  • Data logging to national database
  • View national data
  • Bone diagrams of prey
  • Barn Owl video footage
  • Owl facts
Features
Read full description

Owl Pellet Activities enhances the observation and dissection of owl pellets, which can be purchased from Carolina Biological Supply (http://www.carolina.com) on your computer or through the app. Use this app to identify the bones you find in your owl pellet and to log your data into our national database. Then view the data from around the country. Other great features include complete bone diagrams of owl prey, Barn Owl video footage, and owl facts.

About

Concentrations

Read full description

Concentrations is a powerful chemical calculator designed for laboratory professionals who need fast, accurate concentration calculations in the field. Say goodbye to manual dilution factor calculations, density conversions, and purity adjustments. The Problem We Solve: Ever needed to prepare a 1M sulfuric acid solution, but your stock bottle only shows "98% w/w" with molecular weight and density? Concentrations does the complex math for you instantly—just input your stock solution data and get precise preparation instructions with a single tap. Key Features: Smart Dilution Calculator – Calculate dilution parameters from stock solutions or known molar concentrations with ease Comprehensive Concentration Types – Support for Molar, Normal, Molal, Mole Fraction, Mass Concentration, Volume Fraction, and more Simple Input, Powerful Results – Enter your compound's molecular weight, desired concentration, and volume—Concentrations handles the rest Customizable Precision – Adjust decimal places in results to match your experimental requirements Localized Interface – Automatically adapts decimal indicators to your regional format Who It's For: Perfect for chemists, laboratory technicians, students, and researchers who need reliable concentration calculations without the hassle of manual computation. Stop fumbling with calculators and conversion tables. Get accurate results every time with Concentrations.

Screenshots

Owl Pellet Activities2 screens
Concentrations4 screens

Verdict

The call

The clearest difference is update cadence: Concentrations at every 3 months against Owl Pellet Activities's every 12 months. Owl Pellet Activities's advantage is iOS requirement (13.0 vs 18.5). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Owl Pellet Activities ships an update every 12 months, Concentrations every 3 months. The most recent releases landed on October 12, 2026 and October 17, 2026 respectively.

Scorecard2 real differences · 8 level
Owl Pellet Activities versus Concentrations: the parameters behind the verdict, then further details
ParameterOwl Pellet ActivitiesConcentrations
PriceFreeFree
Rating3.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 12 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS13.0 — better18.5
Further details — not scored
Size108 MB7 MB
Age rating4+4+
DeveloperCarolina Biological SupplyMarcal Casas Cartagena

In-app purchases

None

Owl Pellet Activities

No in-app purchases

None

Concentrations

No in-app purchases

Questions

Is Owl Pellet Activities free?
Owl Pellet Activities is free to download, with no in-app purchases.
Is Concentrations free?
Concentrations is free to download, with no in-app purchases.
Do Owl Pellet Activities or Concentrations have ads?
Neither Owl Pellet Activities nor Concentrations shows ads.
Which is updated more often, Owl Pellet Activities or Concentrations?
Owl Pellet Activities ships an update every 12 months, and Concentrations every 3 months. Most recently, Owl Pellet Activities was updated on October 12, 2026 and Concentrations on October 17, 2026.

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