Quick mental calculation vs SCUM Time
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Quick mental calculation
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Game to enter within a certain period of time the answer of mental arithmetic calculations will appear on the exam. Many times in a row you can do correct? It is a challenge to the rankings!
SCUM Time
This app provides real-time in-game server information, including player counts and accurate time. It automatically detects server changes to keep your data current. Features include in-game timers and a clock face highlighting day and night cycles.
- Accurate in-game time tracking
- Real-time player counts
- Automatic server monitoring
- In-game timers for cooking
- Clock face with day/night indicators
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Just choose your servers and get accurate in-game time and player counts. Our back-end system monitors servers to automatically detect time rates, reboots and adjustments so your watch is always up to date. The iPhone and Watch app both feature in-game timers for cooking and the clock-face highlights night and day times.
Screenshots
Verdict
The clearest difference is in-app purchases: Quick mental calculation at none against SCUM Time's 2. Quick mental calculation also leads on iOS requirement (12.0 vs 18.4). SCUM Time's advantage is ads (none vs shown). On price, update cadence 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. SCUM Time sells 2 one-off in-app purchases. Quick mental calculation asks for nothing beyond the download.
Quick mental calculation ships an update every 11 days, SCUM Time every 6 days. The most recent releases landed on September 29, 2026 and October 3, 2026 respectively.
| Parameter | Quick mental calculation | SCUM Time |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 11 days | Every 6 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, Apple Watch — better |
| Requires iOS | 12.0 — better | 18.4 |
| Further details — not scored | ||
| Size | 21 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | ERX | Elric Pedder |
In-app purchases
Quick mental calculation
No in-app purchases
SCUM Time
- Unlock All Servers$1.99
- Tip the Developer$3.00
Questions
Is Quick mental calculation free?
Is SCUM Time free?
Do Quick mental calculation or SCUM Time have ads?
Which is updated more often, Quick mental calculation or SCUM Time?
Other comparisons
