Comparison

Stop Timer Button Challenge vs Guess Size

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

Head to head
About

Stop Timer Button Challenge

Features
Read full description

A big red button and a stopwatch you cannot see. Tap to start it. Tap again when you believe the target time has passed. The clock stays hidden while it runs, so there is nothing to read and nothing to count. Only your own sense of how long a second is. Can you finish all of the missions? Then it tells you exactly how close you were. FIVE WAYS TO PLAY • Classic — pick a target and chase it, or let the app pick one for you • Arcade — round after round on three lives, with the window closing as you go and a streak multiplier that makes the round you are on worth more than the last • Daily run — five targets, the same for everyone, scored out of 100 • Missions — thirty levels that get tighter, longer and less forgiving • Party — pass the phone around, closest to the target takes the round BUILT TO BE FAIR Your time is measured from the moment your finger touches the glass, not from when the app gets around to noticing. Nothing on screen moves while the clock runs. Anything that repeats on a fixed interval is something you could count, and counting would defeat the whole thing. Play to one, two or three decimals. The grading follows your choice. MAKE IT YOURS Eight button designs and eight displays, or build your own: shape, colours, size, labels. Use one of your own photos as the face of the button. Tune the haptics and the sounds to taste, or switch them off. KEEP TRACK Every attempt is logged. Personal bests announce themselves. Statistics show where you land, and whether you tend to stop early or late. NOTHING LEAVES YOUR PHONE No account. No advertising. No analytics. No tracking. The app has no network connection at all, so there is nothing for it to send even if it wanted to.

About

Guess Size

Features
Read full description

You see a dog next to a gorilla. A wine glass next to a child. One of them is drawn to scale. The other one is up to you. Drag to resize the red silhouette until it looks right, then hit Validate. The real size appears, and you find out just how wrong your brain was. It is called the Mandela Effect for a reason: we remember sizes we have never actually measured. HOW IT WORKS - A blue reference object is drawn to its true scale - Resize the red object by dragging it, pulling its handle, or pinching - Validate to reveal the real size and score up to 100 points - Five rounds per game, 500 points to chase DAILY CHALLENGE Everyone gets the same five objects each day. Compare your score with your friends and find out who actually has an eye for scale. PRACTICE MODE Play as much as you want with random objects from a library of 60: animals, vehicles, buildings, furniture, everyday objects and a few surprises. SHARE YOUR BEST ROUND Every game creates an image of your best guess next to the real size. Save it to your photos and post it wherever you like. No account. No ads. No data collected. Just you against your own sense of scale.

Screenshots

Stop Timer Button Challenge4 screens
Guess Size3 screens

Verdict

The call

The clearest difference is iOS requirement: Stop Timer Button Challenge at 17.0 against Guess Size's 26.0. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 5 level
Stop Timer Button Challenge versus Guess Size: the parameters behind the verdict, then further details
ParameterStop Timer Button ChallengeGuess Size
PriceFreeFree
Update frequency—Every 3 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad — better
Requires iOS17.0 — better26.0
Further details — not scored
Size4 MB2 MB
Age rating4+4+
DeveloperStolen Development ASRemi Cassan

In-app purchases

None

Stop Timer Button Challenge

No in-app purchases

None

Guess Size

No in-app purchases

Questions

Is Stop Timer Button Challenge free?
Stop Timer Button Challenge is free to download, with no in-app purchases.
Is Guess Size free?
Guess Size is free to download, with no in-app purchases.
Do Stop Timer Button Challenge or Guess Size have ads?
Neither Stop Timer Button Challenge nor Guess Size shows ads.

Other comparisons