SigmaPlayer2 vs Vulpe
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SigmaPlayer2
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「シグマプレーヤー」は文英堂の教材に付随するリスニング教材を収録したアプリです。 「シグマプレーヤー」を使えば、リスニングの練習にＣＤプレーヤーはもう必要ありません。 このアプリを通して、英文などの音声を好きな場所で聞くことができます。 コンテンツのスピードを変えることもできます。 「シグマプレーヤー」によってリスニング学習がより簡単で便利になります。 一部の英単語帳の音声再生については、再生する順番を個別にカスタマイズすることが可能となる追加機能の設定があります。
Vulpe
This app helps you manage your reading goals by breaking down large books into daily page targets. It visualizes your progress, alerting you if you're ahead or behind schedule. Log your daily study sessions to stay on track and achieve your academic objectives.
- Set book completion dates
- Calculate daily page goals
- Log daily study progress
- Visualize progress ahead/behind schedule
- Receive progress notifications
- Archive completed goals
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Vulpe helps you stay on track and finish your reference books as planned. It visualizes your progress and shows how far ahead or behind schedule you are, so you always know where you stand. If you’re behind, study a bit more to catch up. If you’re ahead, enjoy the extra time or move further ahead. Just set your completion date, and Vulpe calculates how many pages to study each day. Follow the plan and reach your goal with ease. How it works: 1. Add your book, total pages, and target date. 2. Log your daily study progress. 3. Get notified when you’re falling behind or moving ahead. 4. Archive completed goals and track your achievements anytime. Start your efficient, well-organized study routine with Vulpe today.
Screenshots
Verdict
The clearest difference is ads: SigmaPlayer2 at none against Vulpe's shown. Vulpe's advantage is update cadence (every 2 weeks vs every 2 months). On price, in-app purchases, 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. SigmaPlayer2 sells 12 one-off in-app purchases and Vulpe sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
SigmaPlayer2 ships an update every 2 months, Vulpe every 2 weeks. The most recent releases landed on October 1, 2026 and October 16, 2026 respectively.
| Parameter | SigmaPlayer2 | Vulpe |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.3 (4 ratings) — better |
| Positive reviews | — | 95.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 19 MB | 188 MB |
| Age rating | 4+ | 4+ |
| Developer | BUN-EIDO PUBLISHING CO.,LTD. | UniLink Inc. |
In-app purchases
SigmaPlayer2
- SWITCH Stage4$0.99
- SWITCH Stage5$0.99
- 単語帳カスタム再生機能$3.99
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- ユニコンコミュニケーション2 CD$4.99
- ユニコンコミュニケーション1 CD$4.99
- グローブコミュニケーション2 CD$4.99
- グローブコミュニケーション1 CD$4.99
- グローブコミュニケーション3 CD$4.99
- ユニコンコミュニケーション3 CD$4.99
- Grove English Communication Ⅰ$4.99
- Grove English Communication II$4.99
- グローブ英語コミュニケーションⅢ$4.99
Vulpe
- Vulpe Premium Monthly7 Days trial$3.991 Month
- Vulpe Premium Annual7 Days trial$12.991 Year
- Vulpe Premium Yearly7 Days trial$39.991 Year
- Vulpe Premium Outright$29.99
