Comparison

Robot Merge vs Stretch Robot

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

Head to head
About

Robot Merge

Merge identical robots to discover and collect 60 unique machines. Upgrade your buildings, earn coins, and expand your robot empire in this addictive collection game.

Highlights
  • Merge identical robots
  • Discover 60 unique machines
  • Upgrade buildings
  • Earn coins
  • Expand your world
Features
Read full description

Build Your Robot Empire! Drag identical robots together to discover 60 unique machines and upgrade your buildings in this highly addictive game! Earns coins and expand your world!

About

Stretch Robot

Control a robot with extendable arms to solve physics-based puzzles. Stretch, grab, and swing to overcome obstacles like spikes and gaps using smart thinking and elastic mechanics. Enjoy handcrafted levels with a casual pace, perfect for quick, engaging brain teasers.

Highlights
  • Physics-based puzzle gameplay
  • Stretch mechanics
  • Handcrafted levels
  • Logic challenges
  • Casual pace
  • Intuitive physics
Features
Read full description

Stretch your robot’s arms, grab objects, and solve clever physics-based puzzles. Every level challenges your logic, timing, and understanding of elastic mechanics. Simple controls, satisfying solutions, and a smooth difficulty curve. In Stretch Robot: Physics Puzzle, you control a small robot with extendable arms. Your goal is to stretch, grab, swing, and interact with the environment to overcome obstacles and reach the goal. Spikes, saws, gaps, and tricky layouts stand in your way — brute force won’t help, only smart thinking. The game is built around intuitive physics mechanics: elastic arms behave naturally, objects react realistically, and each puzzle has multiple possible approaches. Short levels make the game perfect for quick sessions, while increasing complexity keeps your brain engaged. Features: • Physics-based puzzle gameplay with stretch mechanics • Dozens of handcrafted levels with growing difficulty • Easy to learn, hard to master logic challenges • Casual pace with no timers or pressure • Clean visuals and smooth animations This is a casual puzzle game for players who enjoy thinking, experimenting, and finding elegant solutions. Stretch your limits, solve the puzzles, and help the robot reach its destination.

Screenshots

Robot Merge4 screens
Stretch Robot4 screens

Verdict

The call

The clearest difference is ads: Robot Merge at none against Stretch Robot's shown. Robot Merge also leads on update cadence (every 4 days vs every 4 months) and review sentiment (80% vs 57%). On price, rating, 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. Robot Merge sells 4 one-off in-app purchases and Stretch Robot sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Robot Merge against 4.7 for Stretch Robot. That said, the two scores are not equally well evidenced: Robot Merge has 3.1K ratings behind it against 124, so its average is the more settled of the two. Written reviews are what separate them: 80% of Robot Merge's written reviews are positive against 57% of Stretch Robot's.

UpkeepUpdate frequency

Robot Merge ships an update every 4 days, Stretch Robot every 4 months. The most recent releases landed on October 19, 2026 and October 11, 2026 respectively.

Scorecard5 real differences · 5 level
Robot Merge versus Stretch Robot: the parameters behind the verdict, then further details
ParameterRobot MergeStretch Robot
PriceFreeFree
Rating4.8 (3.1K ratings) — better4.7 (124 ratings)
Positive reviews80.4% of reviews — better57.1% of reviews
Number of ratings3.1K — better124
Update frequencyEvery 4 days — betterEvery 4 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size196 MB185 MB
Age rating4+9+
DeveloperUmbrella Games LLCLunapp, TOO

Customer experience

Robot Merge

All ratings3,061 ratings
Positive95.0%
Neutral3.2%
Negative1.8%
Written reviews92 reviews
Positive80.4%
Neutral5.4%
Negative14.1%

Stretch Robot

All ratings124 ratings
Positive94.4%
Neutral2.4%
Negative3.2%
Written reviews7 reviews
Positive57.1%
Neutral14.3%
Negative28.6%

Bugs and requests

Robot Merge

Reported bugs

5 issues
  • Lucky merges have stopped working
  • Glitch where it chips gems when upgrading robots
  • App freezing issues
  • Incompatible with older devices
  • Login screen freezes

Requested features

5 requests
  • More robots and other stages or worlds
  • Leaderboard
  • Auto assign robots to mines/buildings
  • Dark mode option
  • Advanced analytics dashboard

Stretch Robot

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Robot Merge

One-time4
  • Budget Pack$1.99
  • Crate Of Gems$4.99
  • Shipment Of Gems$9.99
Show 1 more
  • Mountain Of Gems$29.99
1 purchases

Stretch Robot

One-time1
  • Remove Ads$0.99

Questions

Is Robot Merge free?
Robot Merge is free to download, with in-app purchases available.
Is Stretch Robot free?
Stretch Robot is free to download, with in-app purchases available.
Which has better reviews, Robot Merge or Stretch Robot?
Robot Merge is rated higher. Robot Merge averages 4.8 out of 5 from 3.1K ratings, while Stretch Robot averages 4.7 from 124 ratings.
Do Robot Merge or Stretch Robot have ads?
Stretch Robot shows ads; Robot Merge does not.
Which is updated more often, Robot Merge or Stretch Robot?
Robot Merge ships an update every 4 days, and Stretch Robot every 4 months. Most recently, Robot Merge was updated on October 19, 2026 and Stretch Robot on October 11, 2026.

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