Add Up Fast vs RubikTime
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Add Up Fast
Test your mental math skills with quick, 15-second challenges. Tap the correct answer to progressively harder equations to boost your brain power. Features four distinct game modes for varied practice.
- 15-second speed challenges
- Tap correct answer mechanic
- Progressively harder questions
- Addition mode
- Subtraction mode
- Multiplication mode
- Division mode
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15 seconds of speed math to boost your brain power. The rules are simple: Tap the right answer for the equation. Players have 15 seconds to get as many questions right as possible. The questions get progressively hard as more questions appears. 4 GAME MODES: ------------------------------ 1) Addition 2) Subtraction 3) Multiplication 4) Division
RubikTime
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The ultimate timing companion for speedcubers! Whether you're a beginner learning your first algorithms or a WCA competitor chasing sub-10 solves, Cube Timer delivers precision timing and comprehensive statistics. SUPPORTED PUZZLES: - 2x2, 3x3, 4x4, 5x5 Cubes - Pyraminx - Megaminx KEY FEATURES: - One-tap precision timer - Individual solve history per puzzle type - Personal record (PB) tracking - Average solve time calculation - Best time comparison across puzzles STATISTICS: - Recent solves overview - Average time tracking - Personal best records - Progress comparison BEGINNER FRIENDLY: Easy-to-use interface designed for cubers starting their speedcubing journey. ADVANCED CUBERS: Detailed analytics to fine-tune your solving technique and break records. Download now and start your speedcubing journey!
Screenshots
Verdict
The clearest difference is in-app purchases: RubikTime at none against Add Up Fast's 3. RubikTime also leads on update cadence (every 4 months vs every 38 months). Add Up Fast's advantage is ads (none vs shown) and iOS requirement (9.0 vs 16.4). 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. Add Up Fast sells 3 one-off in-app purchases. RubikTime asks for nothing beyond the download.
Add Up Fast ships an update every 38 months, RubikTime every 4 months. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.
| Parameter | Add Up Fast | RubikTime |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (75 ratings) — better | — |
| Positive reviews | 58.3% of reviews | — |
| Number of ratings | 75 — better | — |
| Update frequency | Every 38 months | Every 4 months — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 12 MB | 114 MB |
| Age rating | 4+ | 4+ |
| Developer | Arch Square | Dawid Wrzesinski |
In-app purchases
Add Up Fast
- Pack of 250 Tokens$0.99
- Pack to Unlock All Game Modes$1.99
- Pack to Remove Ads$1.99
RubikTime
No in-app purchases
