Flexible Ostrich vs Sum2Rush
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Flexible Ostrich
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Flexible Ostrich - an exciting game of reaction speed and accuracy. Necks of different lengths will randomly drop from the top of the screen, and each neck corresponds to a different score. Your task is to control a character and catch as many necks as possible before the game ends to get a higher score and earn coins. You simply touch, swipe or tap the screen to control your character's movement and catch the falling neck. By catching the neck and getting high scores, you will earn coins. These gold coins can be used to purchase various themes and skins to make your gaming experience more personalized and fun!
Sum2Rush
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Sum2Rush is a fast, cozy math arcade. Tap the floating green balls to add their values together and hit the target exactly. Go over and you overflow. Go negative and you lose. Hit the sweet spot and you get perfect. FEATURES - 60+ rounds with steadily rising targets - 25+ special ball types that change how you play: gold for exact hits, explosive, ghost, chain, bomb, nova, rainbow, comet, and more - 33 achievements across milestone, perfection, combat, daily, and collection categories - Daily streak with calendar-day reset, missions for bonus gems, upgrade shop for permanent boosts - 11 ball skins to unlock: cats, bunnies, foxes, angels, unicorns, fairies, wolves, and more - Combo system rewards fast perfect taps with score multipliers - Free, works offline, no account required HOW TO PLAY Numbers float down the screen. Each green ball shows a value. Tap them to add to your current sum. Your goal is to reach the target exactly. Some balls shrink in value over time, so speed matters. Red balls subtract. As you climb rounds, new ball types appear one at a time, each with a short tutorial. Learn to chain bombs, ride comets, trigger black holes, and freeze the screen when things get wild. Get your first perfect round today.
Screenshots
Verdict
The clearest difference is iOS requirement: Flexible Ostrich at 12.0 against Sum2Rush's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Flexible Ostrich ships an update every 3 days, Sum2Rush every 4 days. Both last shipped on October 25, 2026.
| Parameter | Flexible Ostrich | Sum2Rush |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days โ better | Every 4 days |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 97 MB | 23 MB |
| Age rating | 17+ | 4+ |
| Developer | ๆ ่ก | Bartosz Paprzycki |
In-app purchases
Flexible Ostrich
No in-app purchases
Sum2Rush
No in-app purchases
Questions
Is Flexible Ostrich free?
Is Sum2Rush free?
Do Flexible Ostrich or Sum2Rush have ads?
Which is updated more often, Flexible Ostrich or Sum2Rush?
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