Number Rush vs Estiball
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Number Rush
This educational game helps young children learn to count and recognize numbers through interactive play. It features a child-friendly interface, engaging visuals, and positive reinforcement to make learning fun and motivating for kids aged 2-5.
- Learn to count and recognize numbers
- Over 130 objects to count
- 10 diverse categories
- Child-friendly interface
- Native speaker voice narration
- Positive feedback and motivation
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You get one second to look. How many ducks were there? That's the whole game. Objects flash on screen, they vanish, and you pick the answer before the timer runs out. Sounds easy. It isn't — and getting good at it feels genuinely great. THREE COUNTING GAMES • GLIMPSE — Objects appear for a second, then disappear. How many were there? • WHICH SIDE — Two groups flash at once. Pick the bigger one. No time to count. • IN ORDER — Tap them 1 to N as fast as your finger moves. No arithmetic. No equations. You are always counting real things you can see. BANK IT OR PUSH IT Every correct answer drops points into your Pot instead of your score. Tap the Pot to bank it and it's safe — but your streak multiplier resets. Leave it and the next round pays more. Get one wrong and the whole Pot is gone, along with a life. You have three. That decision, every few seconds, is what turns a counting drill into a game. GOLDEN ROUNDS Every fifth round the arena turns gold and everything pays double. Which is exactly when you should be banking, and exactly when you won't want to. IT GETS FASTER BECAUSE YOU DO The glance window starts at just over two seconds and closes as you climb. More objects. Decoys mixed in that look almost right. The game reads your streak and pushes exactly as hard as you can take. WHY NOT JUST USE A BRAIN TRAINING APP Because those cost sixty dollars a year and feel like homework. This is free, it takes sixty seconds, and it's a game first. Sixty seconds. How many can you see?
Estiball
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How many are bouncing around? Take a look, trust your gut and type in your estimate – no counting allowed! Estiball trains your number sense: the ability to judge quantities at a glance. After every round you see how close you were, as a percentage of the correct answer. CHOOSE YOUR CHALLENGE • Kids: up to 10, 20 or 50 objects – bigger and slower, perfect for young children • Adults: 11–100, 101–500 or 101–1000 objects – from warm-up to real challenge CHOOSE WHAT BOUNCES 21 objects, each in its own world: balls in a pinball machine, bees in a meadow, fish under water, dinosaurs in a prehistoric valley, kites in the spring sky and many more. A live preview on the start screen shows your choice before you play. SEE YOUR PROGRESS • Your accuracy in percent after every round • Your last rounds at a glance, so you can see yourself improving • Play the next round with one tap, or change the difficulty any time MADE FOR EVERYONE • No account, no sign-up • Available in 12 languages Great for kids learning numbers, for families competing against each other, and for anyone who wants to keep their mind sharp in a short break. How good is your number sense? Find out with Estiball!
Screenshots
Verdict
The clearest difference is ads: Number Rush at none against Estiball's shown. Estiball's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, 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.
Both ship on a similar rhythm, roughly every 8 days. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.
| Parameter | Number Rush | Estiball |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 8 days | Every 8 days |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 110 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Anh Doan | Ulrich Helker |
In-app purchases
Number Rush
No in-app purchases
Estiball
No in-app purchases
Questions
Is Number Rush free?
Is Estiball free?
Do Number Rush or Estiball have ads?
Which is updated more often, Number Rush or Estiball?
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