Studyplus vs 百人一首チャレンジ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Studyplus
This app helps users maintain consistent study habits by allowing them to log their study sessions and share their progress. It aims to make studying more enjoyable and sustainable through daily tracking and community support.
- Record study logs
- Share study progress
- Daily study tracking
- Continuous learning support
- Community study network
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Study SNS "Studyplus" is where anyone can continue studying happily by recording study and sharing it. Togain achievement, it is necessary for us to study continuously, however it is difficult to do so. Study SNS "Studyplus" will let you record and share your study log daily to help everyone study happily and continuously. [Features] *Lets you record study log [Contact] Please give us feedback on our app from the address below. support@studyplus.jp [Terms of service] Studyplus https://www.studyplus.jp/terms Studyplus Pro https://www.studyplus.jp/pro_terms
百人一首チャレンジ
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新感覚の無料「百人一首」アプリ！ ゲーム感覚で「百人一首」を暗記しよう！ まず「暗記シート」で百人一首を10分の1ずつ暗記しよう！ 下の句（もしくは上の句）が赤色に塗られて隠されているので、 タップすると、読めるようになったり、隠れたりするので、 まずはタップしながら百人一首の上の句と下の句の組み合わせを覚えよう。 上の句と下の句の組み合わせを覚えたら「サバイバル」に挑戦。 「サバイバル」は制限時間内の最高得点を競うモードです。 正しい下の句を選ぶと、制限時間が延長され、より多くの得点を稼ぐことができます。 間違えた問題を復習し、最高記録に挑戦しよう！ ゆっくり覚えたい時は「全問制覇」に挑戦。 「全問制覇」は、ひゃくにんいっしゅ、を1問ずつゆっくり確認するモードです。 焦らず確実に全問制覇しよう！ 本アプリ「百人一首チャレンジ - 暗記、早押し、全問制覇に挑戦しよう」は無料です。 アプリ内のすべての問題、すべての機能を無料でご利用頂けます。 本アプリは広告ネットワークから配信を受け、広告を表示します。 不具合などを発見された方は、アプリ内のお問い合わせからご連絡ください。
Screenshots
Verdict
The clearest difference is in-app purchases: 百人一首チャレンジ at none against Studyplus's 4. 百人一首チャレンジ also leads on iOS requirement (14.0 vs 16.0). Studyplus's advantage is update cadence (weekly vs every 19 months) and ratings volume (335 vs 5). On price, rating, review sentiment and ads 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. Studyplus sells 4 in-app purchases, starting at $5.49 per month. 百人一首チャレンジ asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.8 for Studyplus against 4.8 for 百人一首チャレンジ. That said, the two scores are not equally well evidenced: Studyplus has 335 ratings behind it against 5, so its average is the more settled of the two. Written reviews split almost evenly too, at 72% and 72% positive.
Studyplus ships an update weekly, 百人一首チャレンジ every 19 months. The most recent releases landed on September 21, 2026 and September 17, 2026 respectively.
| Parameter | Studyplus | 百人一首チャレンジ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (335 ratings) | 4.8 (5 ratings) |
| Positive reviews | 72.1% of reviews — better | 71.7% of reviews |
| Number of ratings | 335 — better | 5 |
| Update frequency | Weekly — better | Every 19 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 16.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 181 MB | 45 MB |
| Age rating | 4+ | 12+ |
| Developer | Studyplus Inc. | Trips LLC |
Customer experience
Studyplus
百人一首チャレンジ
Bugs and requests
Studyplus
Reported bugs
6 issues- Study time not reflected in reports/graphs
- Reports show incorrect dates (off by one day)
- App forces update, preventing use on older devices (iPhone 6)
- Blocked users can still see user's goals/profile/comments
- Deleted accounts leave communities behind, showing old usernames
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- Timeline shows irrelevant posts (non-study related)
Requested features
12 requests- English language option
- Fix timezone/local time display for overseas users
- Return to previous UI format
- Add a to-do list feature
- Allow weekly data to start on Sunday
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- Add alarm for timer exceeding set time
- Improve block feature to be more thorough (like Twitter)
- Allow continuous study recording without returning to timeline
- Implement bulk follow/unfollow/block options
- Add quality of study metrics
- Allow multiple event dates for countdowns
- Allow input of page/problem numbers via tapping instead of scrolling
百人一首チャレンジ
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Studyplus
- Studyplus有料版 ベーシック$5.491 Month
- Studyplus有料版 プレミアム7 Days trial$8.491 Month
- Studyplus有料版 ベーシック$44.991 Year
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- Studyplus有料版 プレミアム7 Days trial$68.991 Year
百人一首チャレンジ
No in-app purchases
