TheGrey.app vs Studiary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TheGrey.app
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When the Same Thought Keeps Circling Not a crisis. Not a problem that needs solving. Just the same thought, going around once more, still hovering there. THEGREY exists for this state. When a thought keeps circling with no way out — and you don't need a way out yet. Not meditation. Not therapy. Not a mood tracker. No questions about how you feel. No suggestions. No record. 【 Why do you need THEGREY? 】Not a feature list. The reality you're living right now: • The same thought won't stop before sleep: your body is exhausted but your brain refuses to land, the thought grinding in the dark on repeat. • Walking into a place brings something back: the space itself is the trigger, old memories spiraling again without warning. • A date or anniversary arrives and the thought returns: time's inertia brings regret back automatically, no reason needed. • Shallow breathing, physical tension, thought follows: physiological anxiety feeds mental drain, the thought accelerating with your heartbeat. 【 Three entry points, three sources of circling 】 • THIS DAY | Time-triggered: circular thoughts triggered by time or date. Time seems to stand still. • THE SPACE | Space-triggered: circular thoughts triggered by location or setting. This space won't let the feeling go. • THE BREATH | Rhythm-triggered: circular thoughts triggered by rhythm or stress. The circling that happens between breaths. 【 Seven content invariants, strictly observed 】No second person · No action directive · No future tense · No causal framing · No self-comfort · No shareability design · No implied next step. No journal. No history. No progress report. Enter. Stay. Leave. Built on THE GAP Framework. Compliant with GAP-NLP-1.0.
Studiary
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[路徑圖] 有數學、物理、化學、生物、地科、歷史、地理、公民路徑圖,幫助高中生們複習時能跟著路徑圖安排複習的順順序,也可以記錄下哪些單元已經完成或是花了多少時間。 [練功房] 除了練習各單元之外,大家也會有需要練習模擬題本或是跨範圍的時候。在練功房你可以自己選擇科目和自訂項目,接著按開始練功,就能記錄你練功了多久。 [排行榜] 是競爭也是激勵,看看大家的讀書照、時數來激發學習動力吧!可以看到系統上使用這個 app的人今日的讀書總時數,並且會照讀書時數排行,也會顯示其他人各科目的完成度。 另外,如果你渴望當個讀書vloger但苦於麻煩的拍攝與剪片,趕快用studiary成全你得分享慾! [錯題本] 錯題本可以輸入文字和圖片,不論你喜歡單純打字的複習錯題,還是要寫完再拍照上傳都沒問題,還可以為錯題建立標籤,錯題類別一目了然,還設有複習模式,可以檢視自己錯題是否會一錯再錯。 [my studiary] 你每天的努力都會記錄在這裡,看看你努力的痕跡與累積時數,透過照片讀書日誌讓大家看見你努力的身影
Screenshots
Verdict
The clearest difference is in-app purchases: Studiary at none against TheGrey.app's 1. On price, update cadence, ads 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. TheGrey.app sells 1 one-off in-app purchase. Studiary asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 1, 2026 and October 11, 2026 respectively.
| Parameter | TheGrey.app | Studiary |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days | Every 3 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 196 MB |
| Age rating | 4+ | 4+ |
| Developer | Hsieh ChiaMing | Yi Tse Lu |
In-app purchases
TheGrey.app
- The Grey Platinum$2.99
Studiary
No in-app purchases









