
Aster - Bump into your fandom
Find fans of your OSHI nearby
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Free
In-App PurchasesWith Ads
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Details
Background Location Access
About
"That person I just walked past loves the same OSHI as me."
Aster is an app for noticing, after the fact, the fellow fans you crossed paths with.
■ Cross paths now, hear about it later
When another user comes within 100 meters, you two cross paths. You are notified about ten minutes later and the record stays hidden until then, never in real time, so nobody can use Aster to find where you are now. The same person counts only once per hour.
■ Your crossings become a record of your fandom life
Each entry keeps the date, rough place name, and the other person's nickname, OSHI and icon.
■ Check in at the venue
At an event, tap your icon on the map and take a photo to check in there. Add text and tag friends you were with. Friends see it on their maps. Camera photos only.
■ Check-in plan
Add the venue, date, title and artist in advance; it shows on your and friends' maps as a check-in with an empty photo. On the day, a photo from the plan near the venue completes it. Reminders come that morning and near the venue (checked on device).
■ What the map shows
Your location, your own crossing spots, each area's fandom energy, and check-ins from you and friends. Never where someone you crossed paths with is or was.
■ Feel the fandom energy of your city
Pins at area centres are counts, not people. Tap one for its top 10 and Spotify previews.
■ Tell people about your OSHI
Register up to four OSHI (artist, member, image), a nickname, user ID, icon, bio and X / Instagram / Threads / TikTok names.
■ Footprints
Opening someone's profile leaves a footprint. Only the date is shown, not the time.
■ Choose whether your icon is shown
Turn off "Share my icon on the map" in Settings to leave area energy counts and keep your icon off others' records. Check-ins still show to friends.
■ Private areas
Register up to three places like home or work (radius 200 m to 3 km). Inside one, no location is sent for crossings and you are not counted. Check-ins there still appear at their spot.
■ Reporting and blocking
Report or block a user from their profile card, or report a check-in. Free, and never revealed.
■ Friends
Send a request with a friend code; once accepted, you are friends. Even on the free plan, friends see each other's photo, OSHI member name, check-ins, but never crossing locations or history. Ten sign-ups with your code earn a free month of Premium.
■ Premium (paid plan)
- Clear crossing history and footprints (free plan blurs entries older than 24 hours)
- Profile photos and OSHI member names anytime (free: friends, or 24 hours after a crossing or footprint)
- Social account names (free: services only)
- Check-ins from any date (free: last 30 days; a friend's older ones need both of you on Premium)
- No ads
- Open profiles without leaving a footprint
- Same-OSHI filter: avoid crossing people who love the same member
■ About privacy
- Crossings never reveal your exact location
- Apart from check-ins, no one's location is on the map
- Crossing notifications arrive about ten minutes late
- Delete your account in the app anytime
■ About location access
Aster uses your location in the background, even while you are not using the app, to detect crossings and nearby planned venues. Continued background use of location can shorten battery life.
■ About subscriptions
- Plan: Premium (auto-renewing subscription, 1 month / 3 months / 6 months)
- Price: shown on the purchase screen inside the app
- Payment is charged to your Apple ID account at confirmation of purchase
- The subscription renews for the same period and is charged again at each renewal, unless auto-renew is turned off at least 24 hours before the end of the current period
- After purchase you can manage the subscription and turn off auto-renew any time from your App Store account settings
- Privacy Policy: https://gratis-walrus-2fe.notion.site/Aster-3a931b065c3c80c9bda1d18da8455c7e
- Terms of Use: https://gratis-walrus-2fe.notion.site/Aster-3a931b065c3c804d8a45ea16f706ba98
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What's New in Aster
1.4.0
November 11, 2026
- React to friends' check-ins with an emoji - The History tab is now Activity: see crossings, footprints, and reactions and joins on your check-ins in one place - Check in with a photo even without signal at the venue; it is sent once you are back online - Complete a check-in plan with a photo anytime, without waiting for the day - Invite people to your check-in with a link; those who join are shown on the check-in with you - Remove people who joined from your own check-in - Other minor improvements and bug fixes
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Subscriptions & In-App Purchases
プレミアム(1ヶ月)
すべてのプレミアム機能を利用できる1ヶ月プランです。期間ごとに自動更新されます。
$14.991 Month
1 Month trial





