Number Master vs Devfest London
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Number Master
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Improve your arithmetic and mental arithmetic with addition, subtraction, multiplication, and division operations. If you do it repeatedly, you will soon become a master of mental arithmetic. Show off your mental arithmetic skills through competition ** function * Arithmetic operation (+,-, x, Γ·) * Two-player match mode
Devfest London
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DevFestΒ LondonΒ is a community-run one-day conference aimed to bring technologists, developers, students, tech companies, and speakers together in one location to learn, discuss and experiment with technology.
Screenshots
Verdict
The clearest difference is device support: Number Master at 3 against Devfest London's β. Devfest London's advantage is iOS requirement (12.0 vs 15.5). On price and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Number Master | Devfest London |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days | β |
| Ads | Yes | β |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod β better | β |
| Requires iOS | 15.5 | 12.0 β better |
| Further details β not scored | ||
| Size | 25 MB | 89 MB |
| Age rating | 4+ | 4+ |
| Developer | CometStudio(KR) | SUPRTECH LTD |
In-app purchases
Number Master
No in-app purchases
Devfest London
No in-app purchases
Questions
Is Number Master free?
Is Devfest London free?
Other comparisons
