Comparison

Lerner AR vs Chol Agaraadhi

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

Head to head
About

Lerner AR

This app enhances reading by bringing book content to life through augmented reality. Scan images in companion books to unlock interactive 3D models and animations related to the text. Explore space, the human body, and insects in an engaging, digital format.

Highlights
  • Augmented reality content viewer
  • Interactive 3D models
  • Educational book companion
  • Intuitive AR interface
  • Content related to space, biology, and insects
Features
Read full description

NOTICE: This app requires a minimum iOS of 11.0 and an A9 chip. Find out if your device meets requirements at www.apple.com/augmented-reality/. Augment your reading experience with Lerner AR! Download this free app to pair with a Lerner AR book. As you read, look for the Lerner AR icon throughout the book. It means there is an augmented reality experience on that page! Use the app to scan the picture near the icon to access bonus augmented reality content related to that page. Features - Easy to use, intuitive augmented reality viewer - Pop-up tips and interactive instruction help you get the most out of the experience - Brings digital content to the reading experience in a way that short links or QR codes simply can’t provide Companion books Creepy Crawlers in Action, Folding Tech, Space in Action, and The Gross Human Body in Action let readers explore space, bugs, and the human body through interactive augmented reality experiences! Watch a black hole eat a star, see the moon's orbit, look around on Mars as if you're actually there. Learn how boogers work, see inside an artery, and find out how what you eat affects your poop. Watch creepy crawlers lay eggs, hunt prey, and perform a mating dance. Each book contains multiple AR experiences to bring learning to life. It's like a pop-up book for your digital device! Augmented reality experiences in Folding Tech and the Space in Action series include: - Insight’s folding solar panels - PUFFER, the Pop-Up Flat Folding Explorer Robot - A star going supernova and exploding - A humanoid robot built for space exploration - Cassini orbiting Saturn and crashing into it - A complete animated model of the solar system - Looking around the surfaces of the moon and Mars as well as the International Space Station Augmented reality experiences in The Gross Human Body in Action series include: - Interactive stomach digestion process - Zit cross section, with interactive popping - Lice on hair - Mouth amoeba eating bad bacteria - Healthy tooth transforming into a cavity - Bruise time lapse - Femur with different kinds of bone breaks - Typical ear morphing into cauliflower ear Augmented reality experiences in Creepy Crawlers in Action series include: -Jumping spider performing a mating dance -Praying mantis hunting a mosquito -Locust laying eggs underground -Stick insect hatching -Tick sucking blood and swelling To learn more about Lerner AR and the books that include augmented reality content, please visit lernerbooks.com/go/AR. Watch your books come to life with Lerner AR! Be aware of your surroundings while using this app, as there are hazards associated with using a camera-based application while driving, walking, or otherwise being distracted or disoriented from real world situations. By downloading the app you agree to the collection, storage and use by PTC and its affiliates and service providers of Statistics from the Software and the transfer of Statistics between PTC and its affiliates and service providers (which may be in the United States or in other countries), in each case for the purposes of (a) providing the Software and Services, (b) facilitating the provision of new products, updates, enhancements and other services, (c) improving the Software, the Services, and other products, services and technologies, and (c) providing new products, services or technologies customers of PTC or its affiliates. No personally identifiable information is collected or stored.

About

Chol Agaraadhi

This tool provides English translations for Tamil words and vice versa. Beyond definitions and parts of speech, it offers insights into word pleasantness, popularity, usage fields, related terms, and similar pronunciations.

Highlights
  • Tamil to English translation
  • English to Tamil translation
  • Word pleasantness rating
  • Word popularity tracking
  • Related word suggestions
  • Similar pronunciation identification
Features
Read full description

Chol Agaraadhi tool is here to help. You can get English equivalents of Tamil words and vice versa. This is not just an other language synonym finder; Apart from meaning and part of speech, Chol gives you other interesting facts about the Tamil word, like its pleasantness, popularity, fields in which it is used, related words and words with similar pronunciation.

Screenshots

Lerner AR4 screens
Chol Agaraadhi4 screens

Verdict

The call

The clearest difference is review sentiment: Lerner AR at 67% against Chol Agaraadhi's 0%. Lerner AR also leads on rating (4.4 vs 3.5) and update cadence (every 6 weeks vs every 3 months). On price, ads, in-app purchases and monetization model 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.

ReceptionRating · Positive reviews · Number of ratings

Lerner AR holds the better App Store score, 4.4 against 3.5. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews point the same way: 67% of Lerner AR's written reviews are positive against 0% of Chol Agaraadhi's.

UpkeepUpdate frequency

Lerner AR ships an update every 6 weeks, Chol Agaraadhi every 3 months. Both last shipped on November 3, 2026.

Scorecard4 real differences · 6 level
Lerner AR versus Chol Agaraadhi: the parameters behind the verdict, then further details
ParameterLerner ARChol Agaraadhi
PriceFreeFree
Rating4.4 (7 ratings) — better3.5 (2 ratings)
Positive reviews66.7% of reviews — better0.0% of reviews
Number of ratings7 — better2
Update frequencyEvery 6 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better12.0
Further details — not scored
Size187 MB48 MB
Age rating4+4+
DeveloperLerner Publishing GroupKarky Research Foundation

Customer experience

Lerner AR

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Chol Agaraadhi

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Lerner AR

No in-app purchases

None

Chol Agaraadhi

No in-app purchases

Questions

Is Lerner AR free?
Lerner AR is free to download, with no in-app purchases.
Is Chol Agaraadhi free?
Chol Agaraadhi is free to download, with no in-app purchases.
Which has better reviews, Lerner AR or Chol Agaraadhi?
Lerner AR is rated higher. Lerner AR averages 4.4 out of 5 from 7 ratings, while Chol Agaraadhi averages 3.5 from 2 ratings.
Do Lerner AR or Chol Agaraadhi have ads?
Neither Lerner AR nor Chol Agaraadhi shows ads.
Which is updated more often, Lerner AR or Chol Agaraadhi?
Lerner AR ships an update every 6 weeks, and Chol Agaraadhi every 3 months. Most recently, Lerner AR was updated on November 3, 2026 and Chol Agaraadhi on November 3, 2026.

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