Kernel 背單字 vs SparkGlow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kernel 背單字
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Here's the translation: 【From a Cornell University Startup Team — The AI GSAT Vocabulary Partner That Truly Gets You】 Let's be honest — traditional vocabulary books and flashcards have no way of verifying whether you've actually retained the words. Kernel Vocab, developed by a Cornell University startup team and designed specifically for GSAT test-takers, combines cutting-edge behavioral science with AI algorithms to permanently break the vicious cycle of memorizing and forgetting. Core Features: ● Proprietary MSRS Memory Engine: This isn't your ordinary flashcard app! Our pioneering multi-modal memory algorithm cross-tests you through a variety of formats — flashcards, multiple choice, cloze exercises, and more. It precisely predicts your brain's "forgetting curve," automatically skips words you already know, and zeroes in on your exact memory weak spots to maximize review efficiency. ● Real Exam Practice: Still going through words alphabetically two weeks before the test? Kernel lets you switch strategies in one tap based on your prep timeline, and generates questions using real past GSAT exam contexts. Every word you study and every sentence you read is an actual tested point from real exams. ● Pet Companions & Community Motivation: Instead of white-knuckling your way through study sessions, open the app because you can't bear to let your pet go hungry! Through gamification mechanics and peer community dynamics, you'll stick with it "painlessly" all the way to exam day — building a powerful habit of daily automatic learning. Your GSAT prep starts with Kernel. Contact Us: Website: https://kerneltech.app Support: hello@kerneltech.app
SparkGlow
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最難的永遠是「開始」。 SparkGlow 是為學生打造的專注與計劃 App,內建一位讀得懂你數據的 AI 學習教練,螢火蟲。它不會丟一堆勵志話給你,它會看你這週真正完成了什麼、哪個時段最有效率,然後告訴你「現在先做這一件」。 【它幫你開始】 - 核心衝刺:每天挑出最該做的那一件,並附上理由(快到期、這科你最卡、現在剛好是你的高效時段)。 - 一句話拆任務:把「準備物理小考」變成今晚做得完的三個小步驟。 - AI 排計劃:說出你這週的目標,它排出分日、分時段的計劃,你勾選要哪些,一鍵加入。 - 改計劃也用說的:「明天太滿,往後挪兩件」,它直接幫你調整,不必整份重排。 【番茄鐘陪你做完】 - 專注計時,背景安全:切出去、鎖螢幕、接電話,回來時間都不會跑掉。 - 可綁定任務:專注結束直接問你完成了沒,還能順手記下這一輪的心情。 - 每一次專注都會累積成紀錄,也成為 AI 分析你的真實依據。 【看得見的進步】 - 連勝:當天任務全部完成,連勝就往上跳一格。 - AI 週報:讀你的真實數據產出回顧與圖表,指出哪一科在退步、哪個時段最有效率。 - 重要日期:期中考、報告死線倒數,一鍵讓 AI 生出準備任務。 【為你調整】 - 第一次開啟會問你幾個問題(你是誰、主要科目、目標、精力高峰),之後 AI 的每一句建議都以此為前提。 - AI 的語氣與說話方式你可以自己改寫,設定裡就能編輯。 - 介面以繁體中文為主,英文持續完善中。 【你的資料是你的】 - 任務、專注紀錄、反思與聊天都存在你的裝置上。 - 使用 AI 時,必要內容經加密連線傳送以取得回應;我們的伺服器原則上不儲存,僅抽樣保留一小部分用於改善品質,可在設定裡隨時關閉。 - 可一鍵匯出成檔案,也能徹底刪除。 - 沒有第三方追蹤 SDK,不做廣告或跨 App 追蹤。 需要 iOS 17.2 或以上。 【訂閱方案】 免費即可使用核心功能,每週都有 AI 額度。需要更多 AI 用量時再升級: - SparkGlow Pro(月繳/年繳):全功能解鎖,高每週 AI 額度。 - SparkGlow Max(月繳/年繳):全功能解鎖,最高每週 AI 額度與最多深度規劃次數。 兩個付費階層的功能完全相同,差別只在 AI 用量。 - 價格與訂閱期長以 App 內 App Store 顯示為準。 - 訂閱為自動續訂:若未於當期結束前 24 小時取消,將自動續期並扣款。 - 購買後可隨時在 iPhone 的「設定」,「Apple 帳號」,「訂閱項目」中管理或取消。 隱私權政策:https://sparkglows.com/trust/privacy 服務條款:https://sparkglows.com/trust/terms
Screenshots
Verdict
The clearest difference is in-app purchases: Kernel 背單字 at none against SparkGlow's 4. Kernel 背單字 also leads on update cadence (weekly vs fortnightly). SparkGlow's advantage is ads (none vs shown). 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. SparkGlow sells 4 in-app purchases, starting at $2.99 per month. Kernel 背單字 asks for nothing beyond the download.
Kernel 背單字 ships an update weekly, SparkGlow fortnightly. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.
| Parameter | Kernel 背單字 | SparkGlow |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly — better | Fortnightly |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 17.2 |
| Further details — not scored | ||
| Size | 63 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Egan Bisma | Yu Chen Huang |
In-app purchases
Kernel 背單字
No in-app purchases
SparkGlow
- SparkGlow Pro Monthly$2.991 Month
- SparkGlow Max Monthly$4.991 Month
- SparkGlow Pro Yearly$29.991 Year
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- SparkGlow Max Yearly$39.991 Year









