Oshimates vs Aster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Oshimates
Manage your favorite idol's activities and milestones with this comprehensive support app. Track your fan history, schedule events with reminders, and connect with fellow fans. Stay motivated and organized in your fan journey.
- Idol information management
- Fan history tracking
- Anniversary notifications
- Event scheduling and reminders
- Connect with fellow fans
- Community building
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Oshimatesは、あなたの推し活を応援するための総合管理アプリです。 【主な機能】 ■推し管理 登録した推しの情報を一元管理できます。推し始めた日を記録し、推し歴を自動でカウント。25日ごとに記念日通知が届き、推しを応援し続けるモチベーションをサポートします。 ■スケジュール管理 推し関連の予定やリマインダーを簡単に登録・管理。カレンダー表示で一目で確認でき、イベント前には自動で通知が届きます。スケジュールは30分前、リマインダーは60分前に通知されるので、見逃すことがありません。 ■推し友機能 同じ推しを応援する仲間とつながれます。アカウント検索で推し友を見つけ、申請・承認してコミュニティを広げましょう。 推しを応援するすべての人に、Oshimatesをお届けします。
Aster
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"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, the two of you are recorded as having crossed paths. The notification arrives 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 is recorded only once per hour. ■ Your crossings become a record of your fandom life Each entry keeps the date, the rough place name, and the other person's nickname, OSHI and icon. ■ The map shows your own history, never anyone's position It shows three things: where you are, places you yourself crossed paths, and each area's fandom energy. It never shows where another user is or was. A crossing marker sits on a place you passed through, visible only to you; it carries that person's icon, labelling your own record. ■ Feel the fandom energy of your city Each area carries a pin for the group with most energy. A pin is a count, not a person: it sits at a fixed area centre and never moves with users. ■ Tell people about your OSHI - Register up to four OSHI (group name, member name, image) - Set a nickname, user ID, icon and short bio - Add your X / Instagram / Threads / TikTok account names - Swipe a profile card sideways to flip through your OSHI ■ Footprints When somebody opens your profile, they leave a footprint. Only the date is shown, not the time. ■ Choose whether your icon can label other people's records Turn off "Share my icon on the map" in Settings: you are no longer counted towards any area's energy, and your icon is never used on anyone else's record. ■ Private areas Register up to three private places, such as home or work (adjustable radius, roughly 200 m to 3 km). While inside one, your location is not sent, so no crossing is recorded there and you are not counted in that area's total. ■ Reporting and blocking You can report or block another user from their profile card. Both are free, and neither is revealed. ■ Friends Send a request with a friend code; once accepted, you are friends. Friends see each other's photo and OSHI member name even on the free plan; no location or history is shared. Ten sign-ups with your code earn one month of Premium free. ■ Premium (paid plan) - See your crossing history and footprints clearly at any time (free plan blurs entries older than 24 hours) - See profile photos and OSHI member names anytime (free plan: friends, or for 24 hours after you cross paths or they visit your profile) - See other people's social account names (free plan shows only which services they use) - No ads - Open profiles without leaving a footprint - Same-OSHI filter: avoid crossing paths with people who love the same member ■ About privacy - Your exact location is never shown to other users - Crossing notifications arrive about ten minutes late, never in real time - You can delete your account from inside the app at any time ■ About location access Aster uses your location in the background, even while you are not using the app, so it can detect when you cross paths with somebody. 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
Screenshots
Verdict
The clearest difference is in-app purchases: Oshimates at none against Aster's 3. Oshimates also leads on ads (none vs shown) and iOS requirement (15.1 vs 17.0). On price, update cadence 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
Both are free to download. Aster sells 3 in-app purchases, starting at $14.99 per month. Oshimates asks for nothing beyond the download.
Oshimates ships an update every 3 days, Aster every 5 days. The most recent releases landed on September 15, 2026 and October 20, 2026 respectively.
| Parameter | Oshimates | Aster |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 3 days — better | Every 5 days |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 54 MB | 21 MB |
| Age rating | 4+ | 12+ |
| Developer | Imaizumi Kei | Otaac Inc. |
In-app purchases
Oshimates
No in-app purchases
Aster
- プレミアム(1ヶ月)1 Month trial$14.991 Month
- プレミアム(3ヶ月)1 Month trial$29.993 Months
- プレミアム(6ヶ月)1 Month trial$34.996 Months









