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Comparison

Speed Number 123 vs Dynamic Visual Acuity

Price, ratings, monetisation and update history for both games, side by side โ€” with what reviewers say about each.

Head to head
Speed Number 123
Speed Number 123

Reflexes Game

Free
๐ŸŽฎ Games
No ratingsView app โ†’
Dynamic Visual Acuity
Dynamic Visual Acuity

Train Reflex & Flash Memory

Free
๐ŸŽฎ Games
No ratingsView app โ†’
About

Speed Number 123

Features
Read full description

Click in order from "1" Clear all numbers quickly speed game

About

Dynamic Visual Acuity

Features
Read full description

Numbers pass in front of your eyes at high speed, and you must enter the number and answer with a check mark. Each time you answer correctly, the number of digits passing by increases. There are two modes: High Speed and Low Speed. Aim for a high ranking in the national ranking!

Screenshots

Speed Number 1233 screens
Dynamic Visual Acuity4 screens

Verdict

The call

The clearest difference is ads: Speed Number 123 at none against Dynamic Visual Acuity's shown. Speed Number 123 also leads on update cadence (every 6 days vs every 39 months) and iOS requirement (11.0 vs 14.1). On price, in-app purchases and device support 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Speed Number 123 ships an update every 6 days, Dynamic Visual Acuity every 39 months. The most recent releases landed on September 26, 2026 and October 16, 2026 respectively.

Scorecard3 real differences ยท 3 level
Speed Number 123 versus Dynamic Visual Acuity: the parameters behind the verdict, then further details
ParameterSpeed Number 123Dynamic Visual Acuity
PriceFreeFree
Update frequencyEvery 6 days โ€” betterEvery 39 months
AdsNo โ€” betterYes
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPod
Requires iOS11.0 โ€” better14.1
Further details โ€” not scored
Size58 MB6 MB
Age rating4+4+
DeveloperHideyuki AonoSaki Inoue

In-app purchases

None

Speed Number 123

No in-app purchases

None

Dynamic Visual Acuity

No in-app purchases

Questions

Is Speed Number 123 free?
Speed Number 123 is free to download, with no in-app purchases.
Is Dynamic Visual Acuity free?
Dynamic Visual Acuity is free to download, with no in-app purchases.
Do Speed Number 123 or Dynamic Visual Acuity have ads?
Dynamic Visual Acuity shows ads; Speed Number 123 does not.
Which is updated more often, Speed Number 123 or Dynamic Visual Acuity?
Speed Number 123 ships an update every 6 days, and Dynamic Visual Acuity every 39 months. Most recently, Speed Number 123 was updated on September 26, 2026 and Dynamic Visual Acuity on October 16, 2026.

Other comparisons

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