Knife Up vs SumDash
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Knife Up
Tap to throw knives at a spinning target, aiming to hit it without colliding with existing knives. Progress through levels to test your reflexes and unlock different knife styles.
- Tap-to-throw gameplay
- Multiple levels
- Variety of flying knives
- Pixel art style
- Reactivity challenges
Read full descriptionHide full description
2018 intelligence and fun flying knife game! Click the screen to throw the flying knife, the middle disk shows the number of remaining flying knives, throw the remaining flying knife, the game wins! PS: be careful not to touch other flying knives. Game features: - a variety of levels to exercise your reactivity - there are a variety of flying knives for choice - pixel style, sharp flying knife Constant challenge! Become the king of the flying knife!
SumDash
Read full descriptionHide full description
How fast is your mental math when the clock is ticking? SumDash turns arithmetic into a fast-paced arcade game: solve +, -, x and / before the countdown hits zero. Every correct answer refills the timer and pushes the pace a little higher. It starts easy. It never stays easy. No worksheets, no lectures - just you, four operations and a clock that keeps getting braver. If you have ever wanted quick math practice that actually gets your pulse up, this is it. GAME MODES • Endless - the classic run. Keep solving, keep speeding up and chase a new personal best. • Daily Heat - one shared challenge for the whole world. Everyone faces the same puzzle sequence that day, so the leaderboard is a pure test of skill. • Ranking - compete for the weekly global leaderboard. You get 3 hearts: a wrong answer or a timeout costs one, and the run ends when they are gone. • Practice - no timer, no hearts, no pressure. Solve as long as you like and check your accuracy at the end. CLIMB THE WEEKLY RANKING The global leaderboard resets every week, and the Top 5 sits right on the home screen. Pick a nickname, post a score and see how you stack up against players worldwide - then come back tomorrow and defend your spot. HOW TO PLAY 1. Tap the correct answer before the countdown runs out. 2. Every correct answer adds time - and the game speeds up. 3. You have 3 hearts. A wrong answer or a timeout costs one. That is the whole rulebook. Mastering it is another story. WHO IT IS FOR • Anyone who wants an arithmetic trainer that feels like a game, not homework • Students sharpening addition, subtraction, multiplication and division - a fun alternative to times tables drills • Adults who want a short brain warm-up with their coffee or on the commute • Anyone chasing sharper focus, faster calculation and quicker reflexes SHORT, LIGHT, FRIENDLY A round takes just a few minutes, so SumDash fits into any break. Your recent runs are saved, so you can watch yourself get faster. It is free, works offline and needs no account - the global board simply connects when you are online. +, -, x, / - how fast can you really go? Get SumDash and find out today.
Screenshots
Verdict
The clearest difference is ads: Knife Up at none against SumDash's shown. Knife Up also leads on iOS requirement (7.0 vs 15.0). SumDash's advantage is update cadence (every 2 days vs every 6 days). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Knife Up ships an update every 6 days, SumDash every 2 days. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.
| Parameter | Knife Up | SumDash |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3 ratings) — better | — |
| Positive reviews | 20.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 days | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 69 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | 晓筠 周 | YT Lab |
In-app purchases
Knife Up
No in-app purchases
SumDash
No in-app purchases









