Zkt Timer vs Human Limit Test
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zkt Timer
This app is a comprehensive speedcubing platform for enthusiasts. It offers training tools, detailed performance analysis, and features for participating in and tracking global competitions. Users can connect smart hardware, practice algorithms, and engage in multiplayer challenges.
- WCA competition hub with live tracking
- Smart cube and gyroscope integration
- Phase analysis for split times
- Algorithm trainer with visualization
- Multiplayer and 1v1 battle modes
- Customizable interface and themes
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Zkt Timer is not just a stopwatch; it is a professional speedcubing ecosystem that blends training, analysis, and global competition into one single platform. Designed by a cuber, for cubers who demand the best. LIVE WCA COMPETITION HUB (WCA LIVE & BEYOND) Manage and track all official competitions worldwide directly from your pocket. • Real-Time Notifications: Get instant alerts when your favorite competitors' results are entered, a new round begins, or a new PB (Personal Best) is achieved. • WCA Live Integration: Access round-by-round live rankings, progress charts, and follow your rivals' performances second by second. • Personal PB Tracking: Fully synchronized with the WCA database to automatically reflect your official results, world ranking, and medal history on your profile. • Competitor Benchmarking: Compare your times side-by-side with any WCA athlete in the world, and analyze your strengths and weaknesses. SMART HARDWARE & TECHNICAL DEPTH Merge cutting-edge technology with your physical cube. • Smart Cube & Gyroscope: Seamless connection with GAN Cube (Gen2/3/4, GAN12 uiM, etc.) models. View every move and rotation of your cube on the 3D screen without lag using gyroscope data. • Phase Analysis: Don't just see your "final time." View your Cross, F2L (pair by pair), OLL, and PLL split times with millisecond precision to discover exactly where you can improve. • StackMat & Manual Entry: Connect your professional StackMat timer hardware or use manual entry mode to keep records anytime, anywhere. ALGORITHM TRAINER & ADVANCED STATISTICS • Comprehensive Algorithm Sets: Master OLL, PLL, F2L, ZBLL, COLL, and more. Pattern visualization and dedicated "drill" modes for every algorithm. • Data Visualization: Track your Ao5, Ao12, Ao100, and lifelong progress charts. Your solutions and settings are always safe with cloud-based synchronization. • 3D Scramble Preview: Inspect scramble algorithms in 3D with TwistyPlayer support and plan your solution strategy (inspection) digitally. SOCIAL COMPETITION & MULTIPLAYER • Friendly Rooms: Solve the same scramble simultaneously with friends. Watch live who is inspecting and who is solving, and fuel the competition with in-room chat. • 1v1 Battle Mode: Duel with a friend side-by-side on the same device; turn training into fun with independent timers and win-streak tracking. "UNDERGROUND" AESTHETIC & CUSTOMIZATION Modify the interface entirely to match your style. • Custom Dark Theme: A professional RGB 18, 20, 28 "Underground" interface that is easy on the eyes. • Advanced Typography: Modern, legible font options like JetBrains Mono, Fira Code, and Roboto Mono. • Total Control: Personalize everything from timer size to scramble text layout and color schemes. Explore: zktimer.app User agreement: https://zktimer.app/terms Official Rules: Full compliance with WCA standards (Inspection, Penalty, Scramble).
Human Limit Test
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Human Limit Test is an app focused on human ability testing and daily brain training. It includes 10 test modules, such as Reaction Time, Sequence Memory, Aim Trainer, Number Memory, Verbal Memory, Order Memory, Visual Memory, Typing Test, Color Recognition, and Schulte Grid. These tests help you better understand your reaction speed, memory, focus, observation, and hand-eye coordination from different angles. Spending just a few minutes each day on these short tests can help your brain feel sharper and more active. It can help you stay focused, train visual search ability, improve reaction rhythm, and gradually build your own performance record. Every test result can be saved, reviewed through history trends, and used to track your progress. You can also compare scores with your friends and see who performs better! Inspired by Internet. P.S. I am still learning app development. If you have any suggestions, ideas, or just want to chat, feel free to contact me at liuyanguk23@outlook.com. I will try my best to reply to every message ^_^.
Screenshots
Verdict
The clearest difference is device support: Zkt Timer at 3 against Human Limit Test's 1. Zkt Timer also leads on iOS requirement (15.0 vs 18.6). On price, ads and in-app purchases 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. Zkt Timer sells 3 in-app purchases, starting at $1.99 per month and Human Limit Test sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | Zkt Timer | Human Limit Test |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 51 MB | 13 MB |
| Age rating | 4+ | 12+ |
| Developer | IBRAHIM YILDIZ | 洋 刘 |
In-app purchases
Zkt Timer
- ZKT Timer Pro$1.991 Month
- ZKT Timer Pro$12.991 Year
- ZKT Timer Pro Life Time$29.99
Human Limit Test
- Remove Ads$0.99





