Comparison

ARC Bookshelf vs Kung Fu Robot

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

Head to head
About

ARC Bookshelf

This eReader app provides access to award-winning books designed for young learners. It supports children in Kindergarten and first grade as they develop reading confidence and independence through teacher-vetted content.

Highlights
  • Access to American Reading at Home books
  • Designed for Kindergarten and first-grade levels
  • Gradual removal of reading support
  • Builds reading confidence
  • Independent learning
Read full description

This easy-to-use app gives children the ability to read books from American Reading at Home, the award-winning, school-based program that has been teacher-vetted, parent-approved, and kid-tested in thousands of schools and homes across America. PLEASE NOTE: Requires an American Reading at Home account (for individuals) or SchoolPace subscription (for schools). Our books are specially designed for children learning to read at the Kindergarten and first-grade reading levels. The books work just like training wheels on a bicycle. A child will gain confidence by using books at the “just right” level of challenge; as he/she develops new skills, the “training wheels” are gradually removed. Because so much of the reading support is provided by the actual books, children can do much of the learning on their own. This provides the child with tremendous confidence and a sense of ownership of their own learning. It also makes learning to read fun and enjoyable!

About

Kung Fu Robot

An interactive comic book adventure for children featuring a robot who loves kung fu. Explore an original storyline with engaging animation, action-packed mini-games, and a fun soundtrack. A free preview includes issue #1 and mini-games, with additional issues available for purchase.

Highlights
  • Interactive comic book interface
  • Original storyline and animation
  • Action-packed mini-games
  • Soundboard with sound effects
  • Free preview of issue #1
  • Additional issues available for purchase
Read full description

He’s the Unicycle Champion of the 3rd Northern District, the world record holder for “ice cream sandwiches eaten in one sitting,” the reigning champion of continuous nunchucking and once won a bronze medal for simultaneous stomach rubbing and head patting. Meet KUNG FU ROBOT. In this first adventure, titled “How to Make a Peanut Butter, Jelly & Kung Fu Sandwich,” KUNG FU ROBOT blends a robot’s love of kung fu, a conscientious sidekick’s fear of getting in trouble, android ninjas, a crazy chicken bent on world domination and the pursuit for the perfect peanut butter and jelly sandwich into an engaging adventure for children of all ages. KUNG FU ROBOT is an immersive experience brought to vivid life by an original storyline, engaging animation, action-packed mini-games and a soundtrack that will have toes tapping. The FREE preview of this interactive comic book is designed to engage young readers. It includes issue #1, a soundboard that allows users to mix “nunchuck attacks” and “kung fu splats” against a track-by-track breakdown of beats, and the “Whack-A-Ninja” mini-game, bashing android ninjas with a broom as they pop out of kitchen drawers and cabinets. Issues #2, #3 and #4 complete the story with more ninja attacks, more ka-blams, and more hieeyahs, featuring eight additional story chapters and five mini-games. And yes...that angry chicken is even angrier than before. FEATURES: - Original character art and story by illustrator Jason Bays - Original music and sound design by Noel Selders (Substream Music & Sound Design) - Comic book-style “swipe and read” interface - Issue #1 is included for FREE - Issues #2 through #4 are available TOGETHER via a one-time in-app purchase ISSUES: - Issue #1 (FREE): includes three story chapters, the “Super Mega Action Sound Effects” soundboard and “Whack-A-Ninja” mini-game. - Issue #2: continues the story with three additional chapters, the “Clean Up on Aisle 9” mini-game and the “Unicycle Race” mini-game. - Issue #3: includes three additional chapters and the “Rocket Ride” and “Disarm the Death Ray” mini-games. - Issue #4: concludes the adventure with two action-packed chapters and the "Monster Tag Dodgeball" mini-game. For more information, visit http://kungfurobot.com. KUNG FU ROBOT on Facebook: http://facebook.com/kungfurobot KUNG FU ROBOT on Twitter: @whatthekungfu

Screenshots

ARC Bookshelf3 screens
Kung Fu Robot4 screens

Verdict

The call

ARC Bookshelf and Kung Fu Robot both sit at 3.6 stars, but that hides the real split: 76% of Kung Fu Robot's written reviews are positive against 34% of ARC Bookshelf's. Kung Fu Robot also leads on iOS requirement (8.0 vs 13.0). ARC Bookshelf's advantage is in-app purchases (none vs 4) and ratings volume (38 vs 12). On price, rating, update cadence and ads 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. Kung Fu Robot sells 4 one-off in-app purchases. ARC Bookshelf asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 3.6 for ARC Bookshelf against 3.5 for Kung Fu Robot. Both are backed by a comparable volume of ratings — 38 and 12 respectively. Written reviews are what separate them: 34% of ARC Bookshelf's written reviews are positive against 76% of Kung Fu Robot's.

UpkeepUpdate frequency

ARC Bookshelf ships an update every 2 months, Kung Fu Robot every 3 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard5 real differences · 5 level
ARC Bookshelf versus Kung Fu Robot: the parameters behind the verdict, then further details
ParameterARC BookshelfKung Fu Robot
PriceFreeFree
Rating3.6 (38 ratings) — better3.5 (12 ratings)
Positive reviews34.0% of reviews76.2% of reviews — better
Number of ratings38 — better12
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.08.0 — better
Further details — not scored
Size30 MB571 MB
Age rating4+9+
DeveloperAmerican Reading CompanyPropaganda3, Inc.

Customer experience

ARC Bookshelf

All ratings36 ratings
Positive63.9%
Neutral8.3%
Negative27.8%
Written reviews50 reviews
Positive34.0%
Neutral10.0%
Negative56.0%

Kung Fu Robot

All ratings12 ratings
Positive58.3%
Neutral8.3%
Negative33.3%
Written reviews21 reviews
Positive76.2%
Neutral0.0%
Negative23.8%

Bugs and requests

ARC Bookshelf

Reported bugs

14 issues
  • Cannot make an account
  • Keeps asking to log in
  • Page stuck in two-page model
  • Books do not load
  • App closes and goes home
Show 9 more
  • Login problems occur frequently
  • Server is always down
  • Crashes after first use
  • Keeps crashing
  • Crashing after first use
  • Cannot resize to display full pages
  • Cannot log in
  • Incorrect password messages
  • Cannot contact servers

Requested features

6 requests
  • Add more books
  • Add more reading levels
  • Add option to zoom
  • Add themes
  • Add bookmarks
Show 1 more
  • Allow resizing for full pages

Kung Fu Robot

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

ARC Bookshelf

No in-app purchases

4 purchases

Kung Fu Robot

One-time4
  • Volume 2$0.99
  • Volume 3 Part 1$0.99
  • Volume 3 Part 2$0.99
Show 1 more
  • Buy All$1.99

Questions

Is ARC Bookshelf free?
ARC Bookshelf is free to download, with no in-app purchases.
Is Kung Fu Robot free?
Kung Fu Robot is free to download, with in-app purchases available.
Which has better reviews, ARC Bookshelf or Kung Fu Robot?
ARC Bookshelf is rated higher. ARC Bookshelf averages 3.6 out of 5 from 38 ratings, while Kung Fu Robot averages 3.5 from 12 ratings.
Do ARC Bookshelf or Kung Fu Robot have ads?
Neither ARC Bookshelf nor Kung Fu Robot shows ads.
Which is updated more often, ARC Bookshelf or Kung Fu Robot?
ARC Bookshelf ships an update every 2 months, and Kung Fu Robot every 3 months. Most recently, ARC Bookshelf was updated on November 1, 2026 and Kung Fu Robot on November 6, 2026.

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