|Europe Name|| Compatibility Tester|
|Japanese Name|| 相性テスター|
Aishō Tester (Collection)
Aishō Tester Deluxe (Life)
|How to Unlock|
| (Collection) At least five residents, solved at least 15 problems.
(Life) At least two male and two female residents, solved at least 30 problems.
- "This high-tech device tests how well your islanders get along!"
- — Building description, Tomodachi Life
Same gender Miis can check their friendship rating, while opposite gender Miis can check their romance rating. An adult and a child Mii or two related Miis will always have a friendship rating, regardless of gender. In the Japanese version of Life, there is no difference between child and adult and it would be viewed as a romance if they are of opposite gender.
A low compatibility rating does not necessarily mean the two Miis cannot have a relationship, this is only a horoscope meter and should not be taken too seriously. A Mii without a complete birthday cannot use the Compatibility Tester and will just display question marks on the forecaster, due to the fact ratings are based on birth dates.
A forecaster can also be used to check ratings for a week for work/study, chats, leisure, and love. All the possible results are:
- Partly cloudy
- Half rainy
- Very rainy
List of Friendship Ratings
|0%||Worst Friends Ever||It's very rare to get such a bad result...|
|1%-9%||Rival||This result is pretty unique.|
If [Mii] tries hard, they can at least be social friends.
|10%-19%||Always in a Fight||These two won't listen to each other's opinions.|
|20%-29%||So-so||They don't care about each other.|
|30%-39%||Reserved Acquaintances||At least they greet each other occasionally.|
|40%-49%||Social Friends||They don't hate each other in particular.|
|50%-59%||Normal Friends||They don't hate each other in particular.|
|60%-69%||Good Friends||They are well balanced when they are together.|
|70%-79%||Pretty Good Friends||They are well balanced when they are together.|
|80%-89%||Very Good Friends||They have perfect chemistry! They are blessed to have met each other.|
|90%-99%||Soul Mate||With just a fight, [Mii] might want to break up.|
|100%||Friends through Life||Their friendship can last for a lifetime!|
List of Romance Ratings
It is called Love Rating in the European version.
If there are two or more sentences displayed in the description, the in-game description will only show one of them.
- Note: Romance rating can only occur with two Miis with different genders and an age difference between 1-10. Older Miis can't have a romance rating with younger Miis, even if they are adult Miis.
- In the Japanese version of Tomodachi life, a parent Mii and their grown child (opposite gender) are put under romance rating, instead of friendship rating.
- The Compatibility Tester plays different music in the Japanese version for the Romance and Friendship ratings. The Forecast music remains the same.
|Tomodachi Collection Island Locations|
|Mii Apartments • Food Mart • Town Hall • Fountain • Clothing Shop • Pawn Shop • Interior Shop • Mii News • Question Hall • Compatibility Tester • Job Diagnosis • Rankings Board|
|Tomodachi Life Island Locations|
|Amusement Park • Beach • Café • Campground • Clothing Shop • Compatibility Tester • Concert Hall • Food Mart • Fountain • Hats Shop • Import Wear • Interior Shop • Mii Apartments • Mii Homes • Mii News • Observation Tower • Park • Pawn Shop • Photo Studio • Plane/Nintendo 3DS Image Share • Port • Rankings Board • Town Hall|