ARPAIPAI vs OshiDiary
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
ARPAIPAI
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β AR Camera Summon your favorite characters into the real world by scanning specific markers and capture moments with them in photos and videos! Explore shooting from various angles and enjoy the fun of photography together. Share your captured photos and videos on social media platforms for even more excitement! Instructions: γ» Characters Purchase specific peripherals or find corresponding images, then use the camera to scan the images, bringing the characters to life. Once the characters appear, you can edit their expressions and actions as desired. γ» Photos Switch to the shooting mode in the upper left corner and click the capture button to take photos. γ» Video Switch to the recording mode in the upper left corner and click the record button to start capturing videos. β NinthGames Official Twitter Account https://twitter.com/Ninth_Games β If you don't have any scan markers, you can go to our website to download: https://www.ninthgames.com/PAIPAI_Marks
OshiDiary
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Have you ever gazed at a stack of Cheki photos, yet struggled to recall what you chatted about with your favourite idol that day? Do you ever wonder how many stages you've shared with your idol over the past year? Snap and upload to build your digital Cheki wall. Track shooting dates and autograph content, reliving those heart-fluttering moments anytime, anywhere. Feeling overwhelmed after a concert? This is your private confessional. Record the day's events and every sweet word your idol whispered to you. Quantify your devotion: βBlimey, I've spent that much?β Automatically tracks your concert attendance and cumulative support expenditure. Watching the numbers grow is proof of your love. Multi-Member Management Support (DD Friendly) Whether you're a dedicated βsingle-idol supporterβ or a broad-minded βbox-support/DDβ, effortlessly switch between different members' profiles. Create a dedicated page for every shining idol. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: ARPAIPAI at none against OshiDiary's 2. ARPAIPAI also leads on device support (3 vs 1) and iOS requirement (14.0 vs 18.0). On price, update cadence and ads there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. OshiDiary sells 2 in-app purchases, starting at $4.99 per month. ARPAIPAI asks for nothing beyond the download.
ARPAIPAI ships an update every 8 days, OshiDiary every 2 weeks. The most recent releases landed on September 8, 2026 and September 7, 2026 respectively.
| Parameter | ARPAIPAI | OshiDiary |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 days β better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 14.0 β better | 18.0 |
| Further details β not scored | ||
| Size | 176 MB | 33 MB |
| Age rating | 4+ | 17+ |
| Developer | Ninth Games Co., Ltd. | YU FANG |
In-app purchases
ARPAIPAI
No in-app purchases
OshiDiary
- Monthly Plan14 Days trial$4.991 Month
- Annual Plan14 Days trial$19.991 Year









