Comparison

Ocean 4D+ vs Teacher Meter

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

Head to head
About

Ocean 4D+

Explore a vibrant underwater world with augmented reality. Bring marine creatures to life in your environment, interact with them, and learn fascinating facts about their habitats and conservation status.

Highlights
  • Cardless Augmented Reality
  • Interactive 3D marine creatures
  • Realistic animations
  • Digital Encyclopedia of marine animals
  • Conservation status information
  • Habitat and diet details
Read full description

From the cute clown anemonefish to various fascinating sharks, Ocean 4D+ is here to take you on an underwater marine voyage. CARD & CARDLESS AUGMENTED REALITY EXPERIENCE Place the 3D marine creatures directly in your environment or scan the cards available on our website below to summon the animals right in front of you. INTERACTION Tap the creatures to watch some realistic animations and pair them up with the available interactive objects to see their reactions. DIGITAL ENCYCLOPEDIA Visit the 3D Library feature to learn more about many amazing marine animals. Be aware of their conservation status and the threats they are facing. Find out about their diet, sizes, and in which ocean layer(s) do they live. * Minimum Device Requirements for Ocean 4D+: 1. Min OS (for Cardless AR feature): iOS 9 2. Min OS (for Cards AR feature): iOS 7.0 3. Processor: Qualcomm chipset, 1.2 GHz 4. RAM: 3 GB 5. Camera: 8 MPX 6. Memory card supports Augmented Reality feature 7. Not compatible with Intel Atom processor

About

Teacher Meter

This tool allows students to provide feedback on their teachers' effectiveness and gauge the difficulty of subjects based on the instructor. It helps students compare classes in advance to set realistic expectations and prepare accordingly.

Highlights
  • Teacher effectiveness rating
  • Class difficulty assessment
  • Compare classes
  • Prepare for classes
  • Set realistic expectations
  • Assignment notifications
Features
Read full description

Teacher Meter Not every teacher explains or grades the same way. Teacher Meter shows you how much that changes the class. Students anonymously rate how hard a class actually is under a specific teacher. So before you pick next year's schedule, you can see what you're walking into: how difficult the work really is, how many hours a week it takes, and what grades people came out with. Rate and compare. Anonymous difficulty ratings, broken down by teacher and by class. See your real grades. Sign in with StudentVUE to pull your live gradebook. Try what-if scores to work out exactly what you need on the final. Those edits stay on your phone and never touch your teacher's records. Plan your year. A rigor score for the schedule you're building, based on what students reported about those exact classes. Find your classmates. Add your schedule and land in a chat for each of your classes. Your grades and your password never leave your device. Ratings are pooled and anonymous, so nothing links one back to you. For Amador Valley and Foothill High School students. Not affiliated with Edupoint, StudentVUE, Synergy, or Pleasanton Unified School District.

Screenshots

Ocean 4D+4 screens
Teacher Meter4 screens

Verdict

The call

The clearest difference is rating: Teacher Meter at 4.3 against Ocean 4D+'s 1.0. Teacher Meter also leads on in-app purchases (none vs 1) and update cadence (weekly vs every 2 months). Ocean 4D+'s advantage is iOS requirement (11.0 vs 15.5). On price, review sentiment, 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. Ocean 4D+ sells 1 one-off in-app purchase. Teacher Meter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Teacher Meter holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: Teacher Meter has 20 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Ocean 4D+ ships an update every 2 months, Teacher Meter weekly. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.

Scorecard6 real differences · 4 level
Ocean 4D+ versus Teacher Meter: the parameters behind the verdict, then further details
ParameterOcean 4D+Teacher Meter
PriceFreeFree
Rating1.0 (1 ratings)4.3 (20 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings120 — better
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better15.5
Further details — not scored
Size251 MB53 MB
Age rating4+12+
DeveloperOctagon Studio LtdReva Kasula

Customer experience

Ocean 4D+

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Teacher Meter

All ratings20 ratings
Positive85.0%
Neutral0.0%
Negative15.0%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Ocean 4D+

One-time1
  • All Marine Animals$2.99
None

Teacher Meter

No in-app purchases

Questions

Is Ocean 4D+ free?
Ocean 4D+ is free to download, with in-app purchases available.
Is Teacher Meter free?
Teacher Meter is free to download, with no in-app purchases.
Which has better reviews, Ocean 4D+ or Teacher Meter?
Teacher Meter is rated higher. Ocean 4D+ averages 1.0 out of 5 from 1 ratings, while Teacher Meter averages 4.3 from 20 ratings.
Do Ocean 4D+ or Teacher Meter have ads?
Neither Ocean 4D+ nor Teacher Meter shows ads.
Which is updated more often, Ocean 4D+ or Teacher Meter?
Ocean 4D+ ships an update every 2 months, and Teacher Meter weekly. Most recently, Ocean 4D+ was updated on September 9, 2026 and Teacher Meter on September 10, 2026.

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