Comparison

Rio Rex vs Dino Robot Infinity

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

Head to head
About

Rio Rex

Control a terrifying T-Rex rampaging through the streets of Rio, destroying buildings and feasting on humans. Unleash flaming breath and cause mayhem in this action-packed arcade game.

Highlights
  • Control a T-Rex
  • Destroy city buildings
  • Feast on humans
  • Use flaming breath
  • Arcade gameplay
  • Cause mayhem
Features
Read full description

The terrifying T-Rex has returned to bring destruction to yet another city. In this thrilling new action game, Rio Rex, you feast on humans while you level the lovely city of Rio to the ground. Your goal is to roast all humans with your flaming breath and to leave none of them uneaten. Feel free to take the rest of the city down with them! Rio Rex is the rampaging arcade game in which you can run riot controlling a huge T-Rex! Run through the towns and settlements destroying everything in sight and causing havoc among the little humans in your way. This time you are let loose in the beautiful Rio but take a look back at the previous cities that have been destroyed at New York and Paris It is time again to chew people, destroy cities and blow your horrifying fire breathe at everything in sight. Go cause mayhem and destruction because why not! Have fun!

About

Dino Robot Infinity

Assemble and battle powerful dinosaur robots in an epic infinity war. Experience dynamic combat with vibrant effects and diverse dinosaur robot options. This game invites you to a world of mechanical prehistoric creatures.

Highlights
  • Dinosaur robot assembly
  • Robot battles
  • Various combat motions
  • Colorful effects
  • New robot updates
Features
Read full description

A battle of infinity with various dinosaur robots! Choose the dinosaur robot you want, assemble it, Battle your dinosaur robot with other dinosaur robots. Various combat motions and colorful effects, We invite you to the world of dinosaur robot. Please keep in mind that the new Dino Robot will be updated.

Screenshots

Rio Rex2 screens
Dino Robot Infinity4 screens

Verdict

The call

The clearest difference is rating: Dino Robot Infinity at 4.8 against Rio Rex's 4.1. Dino Robot Infinity also leads on in-app purchases (none vs 1) and update cadence (every 3 weeks vs every 11 months). Rio Rex's advantage is ads (none vs shown) and iOS requirement (9.0 vs 11.0). On price, review sentiment, ratings volume 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. Rio Rex sells 1 one-off in-app purchase. Dino Robot Infinity asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Dino Robot Infinity holds the better App Store score, 4.8 against 4.1. Both are backed by a comparable volume of ratings — 50 and 38 respectively. Written reviews point the same way: 72% of Rio Rex's written reviews are positive against 80% of Dino Robot Infinity's.

UpkeepUpdate frequency

Rio Rex ships an update every 11 months, Dino Robot Infinity every 3 weeks. The most recent releases landed on September 17, 2026 and August 20, 2026 respectively.

Scorecard6 real differences · 4 level
Rio Rex versus Dino Robot Infinity: the parameters behind the verdict, then further details
ParameterRio RexDino Robot Infinity
PriceFreeFree
Rating4.1 (50 ratings)4.8 (38 ratings) — better
Positive reviews72.2% of reviews80.0% of reviews — better
Number of ratings50 — better38
Update frequencyEvery 11 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better11.0
Further details — not scored
Size434 MB472 MB
Age rating12+9+
DevelopergametornadoSeungYong Kim

Customer experience

Rio Rex

All ratings50 ratings
Positive78.0%
Neutral4.0%
Negative18.0%
Written reviews18 reviews
Positive72.2%
Neutral5.6%
Negative22.2%

Dino Robot Infinity

All ratings38 ratings
Positive92.1%
Neutral7.9%
Negative0.0%
Written reviews15 reviews
Positive80.0%
Neutral6.7%
Negative13.3%

In-app purchases

1 purchases

Rio Rex

One-time1
  • premium user$0.99
None

Dino Robot Infinity

No in-app purchases

Questions

Is Rio Rex free?
Rio Rex is free to download, with in-app purchases available.
Is Dino Robot Infinity free?
Dino Robot Infinity is free to download, with no in-app purchases.
Which has better reviews, Rio Rex or Dino Robot Infinity?
Dino Robot Infinity is rated higher. Rio Rex averages 4.1 out of 5 from 50 ratings, while Dino Robot Infinity averages 4.8 from 38 ratings.
Do Rio Rex or Dino Robot Infinity have ads?
Dino Robot Infinity shows ads; Rio Rex does not.
Which is updated more often, Rio Rex or Dino Robot Infinity?
Rio Rex ships an update every 11 months, and Dino Robot Infinity every 3 weeks. Most recently, Rio Rex was updated on September 17, 2026 and Dino Robot Infinity on August 20, 2026.

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