Free
In-App PurchasesWith Ads
Rating summary
About
Party games for friends: find out who has the fastest reaction time.
Hit a target time without seeing a clock, then reveal everyone's results.
One phone for the whole group — or a screen each.
MADE FOR GETTING TOGETHER
Play solo, against the computer or with friends, depending on the game. Up to 12 people can share one phone in the timing game. In supported games, invite friends through Messages and play over FaceTime with SharePlay or nearby. Computer opponents are clearly labeled.
TIMING, REACTIONS AND MEMORY
• Timing game — feel when the target time has passed. Group results stay hidden until the end, then appear from last place to first.
• All at once — the same target, separate phones and a shared start.
• Reaction — tap when the color changes. Every millisecond counts; watch out for false starts.
• Training — Sudden death, Arithmetic, Rhythm and From memory (Easy / Medium / Hard / Survival). Pick a level and test your accuracy.
• Mind — Echo, Mosaic, Shape in the air and Colour or word: sequences, patterns, shapes and attention.
A MOMENT FOR YOUR MIND
• IQ test — around 15–20 minutes of tasks, with an estimated score, uncertainty range, ability profile and response-time analysis. An estimate, not a diagnosis or a professional IQ assessment.
• Calm zone — solve nonograms in Picture by numbers or try the Daily challenge.
PUT YOUR PHONE IN MOTION
• Air charades — draw in the air with your phone while friends guess.
• Delayed drawing — try drawing with a camera view that arrives a moment late.
• How many centimetres? — estimate a length and compare it with an AR measurement.
• Treasure in the room — hide virtual treasure in a scanned room.
AR games need a compatible device and camera access. Room scanning availability depends on your hardware.
YOUR PROGRESS
Achievements, badges, statistics, result history and Game Center leaderboards give you reasons to beat your own best.
ADS AND OPTIONAL SUPPORT
Every game and feature is available without a purchase. An announced ad break may follow a finished game. Ads do not interrupt rounds. Optional rewarded ads can offer a hint or a second chance. Three ads appear before your IQ result; this is explained before you start the test. Supporters see their result without ads.
Support the creator with a one-time Coffee, Cake or Pizza purchase. Each gives you the Patron badge permanently and one month (30 days) without ads in BlindSec and Tintlings. Further purchases add further months. Nothing renews automatically.
Terms: https://viavall.com/blindsec/terms.html
Privacy: https://viavall.com/blindsec/privacy.html
Show more
+2
What's New in BlindSec
2.0.1
October 23, 2026
Game Center leaderboards and achievements: compare your scores with players around the world.
4
Subscriptions & In-App Purchases
$2.99
Coffee
Patron badge and a month without ads










