i vs PhyschinggLab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
i
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‘i-Invigilation (HKDSE)‘ is one of the mobile applications under the PESS2 designated for facilitating HKDSE invigilators to perform invigilation duties and enhance the efficiency of examination procedures, such as candidates' attendance recording and script collection, in the examination centres.
PhyschinggLab
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你是否曾經在物理考試前的最後一分鐘，臨急抱佛腳，卻發現筆記找不到、公式記不起來？別擔心！「Physchingg Lab」 就是你的救星，讓你隨時隨地玩遊戲、記物理知識，考試溫書再也不頭痛！ Phy識大亂鬥：玩卡牌配對遊戲及物理問答的同時，偷偷記住那些令人頭痛的定義和公式！ 互動物理模擬實驗：體驗逼真的電場線、質能轉換、波動等模擬實驗，抽象概念瞬間變具體！ 錯題本神器：解決「錯了又錯」的煩惱！自動整理你的錯題，還能一鍵匯出 PDF，讓你隨身帶著溫習。 實驗室探索模式：在虛擬實驗室中自由探索，調整參數觀察現象變化，培養科學思維！ 自製卡片溫習庫：溫書也要個性化！製作屬於自己的溫習卡片，雞精式記住最重要的內容。 討論留言專區：與同學互相切磋，出題、許願、分享學習心得！ 1分鐘速記中英定義和公式：考試前快速掃一眼，讓知識像雞精一樣瞬間濃縮進腦袋！ 不管是 DSE 學生還是任何需要短期記憶加速的人，這款 app 都能助你一臂之力！ 快來下載「Physchingg Lab」，讓物理學習變得更有趣、更高效！唔好臨急抱佛腳，不如抱我！
Screenshots
Verdict
The clearest difference is update cadence: PhyschinggLab at every 6 weeks against i's every 12 months. i's advantage is iOS requirement (12.1 vs 18.0). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
i ships an update every 12 months, PhyschinggLab every 6 weeks. The most recent releases landed on October 20, 2026 and October 4, 2026 respectively.
| Parameter | i | PhyschinggLab |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 12 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 64 MB | 137 MB |
| Age rating | 17+ | 4+ |
| Developer | Hong Kong Examinations And Assessment Authority | Si Ching Wong |
In-app purchases
i
No in-app purchases
PhyschinggLab
No in-app purchases
Questions
Is i free?
Is PhyschinggLab free?
Do i or PhyschinggLab have ads?
Which is updated more often, i or PhyschinggLab?
Other comparisons
