SlotIn vs Gra
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
SlotIn
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λΉ μκ°μ νλμ, ν루λ₯Ό λ ν¨μ¨μ μΌλ‘! SlotInμ λ¨μν μΌμ μ μ λ μ±μ΄ μλλλ€. λ°μ ν루 μμμ λΉμ΄ μλ μκ°μ βμ¬λ‘―βμΌλ‘ μκ°νν΄, κ³νμ ν¨μ¨μ μΌλ‘ μΈμ°κ³ μ¬μ λ₯Ό λμ°Ύμ μ μλλ‘ λμμ€λλ€. μ£Όμ κΈ°λ₯ - λΉ μκ° μκ°ν: μΌμ μ¬μ΄μ μ¬μ μκ°μ νλμ νμΈ - λΉ λ₯Έ μΌμ μΆκ°: λΉλ μκ°μ λ°λ‘ μΌμ λ±λ‘ ν루μ λΉνμ λ€μ λ°λΌλ³΄λ©΄, μλ‘μ΄ λ¦¬λ¬μ΄ μκΉλλ€. κ³νμ κ°λ³κ², ν루λ ν¨μ¨μ μΌλ‘. SlotInκ³Ό ν¨κ» λΉμ μ ν루λ₯Ό μ λν΄λ³΄μΈμ!
Gra
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GraDeuk: Strategic Focus & Pomodoro Allβinβone technology for complete study control. Every feature you need for studying β in a single app A strategic study app to overcome weaknesses and maximize exam readiness. Self-Pomodoro - Check study and break times for various segments in real-time to achieve perfect self-directed learning. Simultaneous counter for number of questions and time per question β practice just like a real exam. Alternating study and break timer β perfect management of your focus rhythm. Background mode for study and break time β your study time keeps counting even on the go. Continuous timer and set logging β deep focus without interruptions, ideal for mock exams. Overtime countdown β train yourself to reduce your solving time. Lap time β measures time per question and total solving time in real time. Cumulative records by subject. Continuous countdown timer. See countdown, countβup, and current time at a glance. Pomodoro counter in continuous mode. Subjectβbased Pomodoro time tracking. βExtreme breakβ mode: distraction time is automatically counted as rest. Clear DβDay (exam date) management. 100% privacy β no server, no cloud. βGraDeuk Timerβ is a fully local app that works without any server. Batteryβfriendly dark mode included. Studying is perfected through records! Calendar view with daily and weekly statistics β see your study patterns at a glance. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://tinyurl.com/3eam8hn8
Screenshots
Verdict
The clearest difference is in-app purchases: SlotIn at none against Gra's 2. Gra's advantage is update cadence (every 2 days vs every 2 weeks) and device support (3 vs 1). On price and ads there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Gra sells 2 in-app purchases, starting at $0.99 per month. SlotIn asks for nothing beyond the download.
SlotIn ships an update every 2 weeks, Gra every 2 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | SlotIn | Gra |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Every 2 days β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone | iPhone, iPad, iPod β better |
| Requires iOS | 18.5 | 13.0 β better |
| Further details β not scored | ||
| Size | 6 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Min Gyoung Kim | YOUNG HWAN SHIN |
In-app purchases
SlotIn
No in-app purchases
Gra
- μκ° ν리미μ3 Days trial$0.991 Month
- μ°κ° ν리미μ 3 Days trial$11.991 Year









