idoki vs sheeta（シータ）
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
idoki
Engage with your favorite K-POP artists through voting and special events. Earn rewards by supporting your bias and celebrating their milestones. Discover fan-curated content and participate in themed surveys.
- Monthly voting rewards
- Birthday celebration events
- Bias-focused voting
- Fan page and exhibition hall
- Themed preference surveys
- Billboard advertisement rewards
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doki doki! An app that gives various rewards for voting for your favorite artist An app that helps cheer for your bias on special days Start stanning your favorite K-POP idol on idoki! ■ Monthly voting rewards you won't want to miss A chance to share your bias! Rankings are determined based solely on votes. Billboard advertisements in Japan's bustling cities are provided as voting rewards. ■ Special rewards to celebrate birthdays We've prepared a little something to make your bias's birthday even more special. Celebrate your bias's upcoming birthday with idoki! ■ Easy voting process focused on my bias No need to scroll through a long list to find your favorite! You can see your favorite artist at the center of the voting page. ■ Eye-Pleasing Fan Page and Exihbition Hall Share stunning photos of your bias, and save high-resolution photos selected by fans. ■ Vote on various themes that remind you of your bias ex) Which artist suits winter the most? Take part in our preference survey updated every week. We are preparing rewards that match the results of the preference survey. ■Service Terms and Conditions■ https://idoki.app/terms.en.html ■Privacy Policy■ https://idoki.app/privacy.en.html
sheeta（シータ）
Access exclusive content from artists and talents, including member-only live broadcasts and videos. Enjoy unique content not available anywhere else, with offerings varying by fan community.
- Artist and talent updates
- Member-only live broadcasts
- Exclusive videos
- Fan community content
- Unique content access
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「sheeta」では、アーティストやタレントの最新情報をお届け！ 会員限定の生放送や動画など、ここでしか読めない・視聴できないコンテンツをお楽しみください！ ※提供コンテンツは各ファンコミュニティサイトによって異なります
Screenshots
Verdict
The clearest difference is review sentiment: idoki at 80% against sheeta（シータ）'s 25%. idoki also leads on update cadence (every 4 days vs every 3 weeks) and ratings volume (6 vs 1). sheeta（シータ）'s advantage is rating (5.0 vs 4.2) and in-app purchases (none vs 10). On price, device support and iOS requirement 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. idoki sells 10 in-app purchases, starting at $2.99 per month. sheeta（シータ） asks for nothing beyond the download.
sheeta（シータ） holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: idoki has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 80% of idoki's written reviews are positive against 25% of sheeta（シータ）'s, so the app with the better star average is not the one people write more warmly about.
idoki ships an update every 4 days, sheeta（シータ） every 3 weeks. The most recent releases landed on October 18, 2026 and October 11, 2026 respectively.
| Parameter | idoki | sheeta（シータ） |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (6 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 80.0% of reviews — better | 25.0% of reviews |
| Number of ratings | 6 — better | 1 |
| Update frequency | Every 4 days — better | Every 3 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 160 MB | 50 MB |
| Age rating | 12+ | 12+ |
| Developer | WithPlant Inc. | DWANGO Co., Ltd. |
Customer experience
idoki
sheeta（シータ）
Bugs and requests
idoki
Reported bugs
7 issues- Connection errors and frequent disconnections
- Inability to open shared links on iPhone
- Cannot post new content ('iMoment')
- Login bonus records disappearing
- App crashes or fails to load after updates
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- Server issues causing voting problems
- Inputting certain symbols prevents posting
Requested features
9 requests- Allow more than 4 idols
- Allow unlimited idols or group support
- Improve system stability and prevent disconnections
- Fix inability to open shared links on iPhone
- Address inconsistent heart counts and voting issues
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- Provide an onboarding/tutorial for new users
- Increase ways to earn points (e.g., watching videos)
- Consider group rankings in addition to individual rankings
- Clarify image usage permissions
sheeta（シータ）
Not enough reviews yet to summarise bugs or requests.
In-app purchases
idoki
- デイリーパッケージ（1か月）$2.991 Month
- 350 + 50 hearts$0.99
- 1,000 + 500 hearts$1.99
- 1,000 + 200 hearts$2.99
Show 6 moreShow fewer
- 4,600 + 1,200 hearts$11.99
- 9,000 + 3,000 hearts$19.99
- 7,500 + 2,000 hearts$19.99
- 11,000 + 3,500 hearts$24.99
- 24,000 + 6,000 hearts$59.99
- 36,000 + 10,000 hearts$79.99
sheeta（シータ）
No in-app purchases
