StudyArena vs Lofi Desk
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StudyArena
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ストップウォッチで勉強時間を測って、友達と競いモチベーションを高めるのを目的として作ったアプリです。
Lofi Desk
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Let's focus, together. LofiDesk is a focus timer where PC GIRL, the girl next to you in a pixel-art room, works alongside you. Start with 25 minutes, with lofi music and the sound of rain. ■ Focus and breaks • A Pomodoro timer that repeats 25 minutes of focus and 5-minute breaks • When a session ends, PC GIRL lets you know out loud • On breaks she sips coffee, stretches, or gazes out the window ■ Rooms and outfits • Swap room sets: the usual room, cafe, game, retro • The light changes with the time of day: morning, noon, sunset, night • Change her hair, extras, clothes and colors • Save your favorite looks and switch in one tap ■ Music and ambience • Pick lofi for work and study on CD • Rain, waves, river, forest, fire, cafe and train ambience (Premium) ■ Log and coins • Your focus time turns into coins you can spend on furniture • See your focus time by week and month ■ Premium (one-time purchase) Buy once to unlock every room set and piece of furniture, outfit, color, CD and ambient sound. No subscription. Prefer the old look? Switch back anytime in Settings → Classic view.
Screenshots
Verdict
The clearest difference is in-app purchases: StudyArena at none against Lofi Desk's 1. Lofi Desk's advantage is ads (none vs shown) and update cadence (every 8 days vs monthly). On price 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. Lofi Desk sells 1 one-off in-app purchase. StudyArena asks for nothing beyond the download.
StudyArena ships an update monthly, Lofi Desk every 8 days. The most recent releases landed on October 28, 2026 and October 21, 2026 respectively.
| Parameter | StudyArena | Lofi Desk |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 8 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.5 | 15.1 — better |
| Further details — not scored | ||
| Size | 23 MB | 138 MB |
| Age rating | 12+ | 4+ |
| Developer | Yasuhiro Ogawa | SHINGO IRIE |
In-app purchases
StudyArena
No in-app purchases
Lofi Desk
- Premium$4.99









