Comparison

Dig a Pig vs Functional Groups

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

Head to head
About

Dig a Pig

Prepare for your fetal pig practical exam with a comprehensive image gallery and interactive quiz. Study detailed anatomy of fetal pigs, cow eyes, cow hearts, and adult pig organs. Aim for an 'A' grade with this educational tool.

Highlights
  • 217 high-resolution anatomical images
  • Fetal pig anatomy gallery
  • Interactive quiz for practice
  • Includes cow eye and heart images
  • Includes adult pig kidney and uterus images
  • Categorized image sections
Features
Currently charting
Read full description

Dig a Pig is a valuable tool containing 217 high-resolution images that will help you get an A on your fetal pig practical exam! Start by studying the images in our beautiful image gallery and then compete against your classmates with the Dig a Pig quiz. Also, as an added bonus, we've included excellent images of a cow's eye and heart, as well as the kidney and uterus of an adult pig. Dig a Pig contains 217 images in the following categories: 1. External (26 images) 2. Buccal Cavity (18 images) 3. Upper Thoracic (5 images) 4. Thoracic Cavity (12 images) 5. Peritoneal Cavity (22 images) 6. Urogenital (34 images) 7. Circulatory (38 images) 8. Cow Eye (12 images) 9. Cow Heart (19 images) 10. Adult Pig Kidney (6 images) 11. Adult Pig Uterus (10 images) 12. Head - Sagittal (10 images) 13. Head - Salivary (5 images) NOTE: We do not currently have a section on the nervous system but hope to include one in the next version.

About

Functional Groups

Master organic chemistry functional groups through an engaging and interactive learning experience. Ideal for students in introductory or advanced courses, MCAT prep, and A-Level chemistry, this app covers dozens of essential groups with practice modes and progress tracking.

Highlights
  • 25+ basic and advanced functional groups
  • 300+ organic compounds
  • Multiple practice modes
  • Customizable study groups
  • Personalized review
  • Reference table and definitions
  • Progress tracking with achievements
Features
Read full description

Ready to ace organic chemistry? Learn the functional groups you need to know - all in an engaging and interactive format. The app is ideal for introductory or advanced organic chemistry classes, MCAT prep, A-Level chemistry, and more. You’ll quickly become familiar with alcohols, esters, amides, amines, and dozens of other important functional groups. The app features: • 25+ basic and advanced functional groups • 300+ organic compounds • Multiple practice modes • Customize which groups to study • Personalized review • Reference table and definitions • Achievements to track your progress Along the way, you’ll learn interesting facts about pharmaceuticals, biomolecules, dangerous compounds, unique molecular structures, and more. With the Functional Groups app, learning organic chemistry is easy, straightforward, and, dare we say… fun? Give it a try and let us know what you think!

Screenshots

Dig a Pig4 screens
Functional Groups4 screens

Verdict

The call

The clearest difference is price: Functional Groups at Free against Dig a Pig's $0.99. Functional Groups also leads on update cadence (every 4 months vs every 23 months) and rating (4.9 vs 4.6). Dig a Pig's advantage is in-app purchases (none vs 1) and chart position (#171 vs unranked). On review sentiment, ratings volume, 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

Functional Groups is free to download; Dig a Pig costs $0.99 up front. Functional Groups sells 1 one-off in-app purchase. Dig a Pig asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Functional Groups holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 37 and 21 respectively. Written reviews point the same way: 94% of Dig a Pig's written reviews are positive against 100% of Functional Groups's.

UpkeepUpdate frequency

Dig a Pig ships an update every 23 months, Functional Groups every 4 months. The most recent releases landed on September 22, 2026 and September 13, 2026 respectively.

Scorecard7 real differences · 4 level
Dig a Pig versus Functional Groups: the parameters behind the verdict, then further details
ParameterDig a PigFunctional Groups
Price$0.99Free — better
Rating4.6 (37 ratings)4.9 (21 ratings) — better
Positive reviews93.8% of reviews100.0% of reviews — better
Number of ratings37 — better21
Update frequencyEvery 23 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#171 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size290 MB17 MB
Age rating12+4+
DeveloperAndrew MeyersonClarity Applications

Customer experience

Dig a Pig

All ratings37 ratings
Positive89.2%
Neutral5.4%
Negative5.4%
Written reviews16 reviews
Positive93.8%
Neutral0.0%
Negative6.3%

Functional Groups

All ratings21 ratings
Positive95.2%
Neutral4.8%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Dig a Pig

No in-app purchases

1 purchases

Functional Groups

One-time1
  • Lifetime Access$9.99

Questions

Is Dig a Pig free?
Dig a Pig costs $0.99, with no in-app purchases.
Is Functional Groups free?
Functional Groups is free to download, with in-app purchases available.
Which has better reviews, Dig a Pig or Functional Groups?
Functional Groups is rated higher. Dig a Pig averages 4.6 out of 5 from 37 ratings, while Functional Groups averages 4.9 from 21 ratings.
Do Dig a Pig or Functional Groups have ads?
Neither Dig a Pig nor Functional Groups shows ads.
Which is updated more often, Dig a Pig or Functional Groups?
Dig a Pig ships an update every 23 months, and Functional Groups every 4 months. Most recently, Dig a Pig was updated on September 22, 2026 and Functional Groups on September 13, 2026.

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