Oshi Fan Log vs Tensei Algorithm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Oshi Fan Log
Organize your fan life by tracking schedules, anniversaries, merchandise, and photos for your favorite idols. This app allows you to manage multiple favorites separately without an account, integrating official news directly into your calendar.
- Schedule and anniversary tracking
- Merchandise and spending management
- Photo and note organization
- Official news integration
- Community messaging
- Calendar synchronization
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Keep your favorites' schedules, anniversaries, merch, spending, photos and notes together. Oshi Fan Log organizes your fan life separately for each favorite, without requiring an account. FROM OFFICIAL NEWS TO YOUR CALENDAR Search with your favorite's name, open an official page and register it there. Add more than one official source when needed. Read updates the app can extract from those public pages. Turn an announcement into a calendar entry with its title, event dates and venue. Review the details and add it to the app's calendar or your iPhone calendar. Multi-day events support start and end dates. You can also create a draft from an announcement image or text. Reading depends on the page's structure and public availability. Missing dates need to be entered manually. Check the original announcement for changes or cancellations. The app does not retrieve every social media post or guarantee real-time updates. SCROLL THROUGH YOUR FAVORITE'S ROOM Read content, schedules, acrylic stands, merch, places, photos, posts and links in one vertical flow, or jump with the bottom menu. Official announcements and media news have separate sections. SEE WHAT'S COMING UP Home focuses on nearby dates, including yesterday. Change the date range to look further ahead. Save concerts, streams and releases, track birthdays and debut dates, and count the days since you became a fan. Widgets and Apple Watch keep important dates close. VIDEOS, LINKS AND MEMORIES Register supported video and streaming channels and social profile links. Available content depends on the service and settings. Organize your collection, wish list, expenses, photos and private notes. Save meaningful places on a map or make a digital acrylic stand from a photo. COMMUNITY Read and post short messages with fans of the same favorite. Public posts include report, block and delete-own-post controls and are separate from private notes. PLANS • Free: register up to 2 oshi. • Premium: register up to 30 oshi and expand eligible limits. Monthly and yearly localized prices are shown before purchase. Premium is an auto-renewable subscription. Payment is charged to your Apple ID at confirmation and renews unless canceled at least 24 hours before the end of the current period. Manage or cancel it in your Apple ID subscription settings. No login is required. Photos, personal notes, schedules, and private oshi records stay on your device by default. If you choose to enable it in Data Protection, a complete backup is saved to your own private iCloud Drive area. Automatic backup is off by default, and Particles and Waves cannot receive or view the backup contents. Anonymous community posts and pilgrimage comments are stored on our server so they can be shared and moderated. This is an unofficial fan app. Rights to third-party content remain with their respective owners. Do not use the app for rights-infringing sale or distribution. Privacy Policy: https://www.particlesandwaves.org/en/oshi/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Tensei Algorithm
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This app is a soul growth app where you record your daily good deeds and level up your soul. By the time you reach dungeon layer x, level x, you may find that your daily life looks different. ■ Soul Diagnosis Start with a soul diagnosis. Choose from two methods — a diagnostic test or a crystal reading — to discover your current soul state. ■ Record Your Good Deeds Select the good things you did today from each category and add optional notes. Points are added and your soul levels up. ■ Events When you reach a certain species or score, a floor-up chance appears! Level up by one, go up big, drop down, or hold your ground — some events let you choose whether to take the chance. ■ View Your Good Deed History Your accumulated good deeds are saved as a history. As you look back on what you've done, you may find yourself recognizing your own growth and building confidence. ■ Check the Reincarnation Log A roadmap showing your past, present, and next stage. Track the changes in your soul's species and level. New information is revealed with each level-up, but some remains sealed. ■ Soul Orb Each species has its own soul color. Enjoy watching your orb change with every level-up.
Screenshots
Verdict
The clearest difference is in-app purchases: Tensei Algorithm at none against Oshi Fan Log's 2. Oshi Fan Log's advantage is ads (none vs shown) and device support (3 vs 1). On price and update cadence 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. Oshi Fan Log sells 2 in-app purchases, starting at $0.49 per month. Tensei Algorithm asks for nothing beyond the download.
Oshi Fan Log ships an update every 4 days, Tensei Algorithm every 5 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | Oshi Fan Log | Tensei Algorithm |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (2 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 days — better | Every 5 days |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 16.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 39 MB | 29 MB |
| Age rating | 17+ | 4+ |
| Developer | Particles and Waves | KAORU IMAI |
In-app purchases
Oshi Fan Log
- プレミアムプラン(月額)14 Days trial$0.491 Month
- Premium Plan (Yearly)14 Days trial$5.991 Year
Tensei Algorithm
No in-app purchases









