Numbas vs SI App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Numbas
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The Numbas app allows you to open Numbas tests which require a restricted environment. When you click on a link to open a Numbas assessment in a learning management system such as Blackboard, Canvas or Moodle, this app will launch and provide a controlled environment in which to complete the test.
SI App
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Solutions Incubator is an app that features convenient features for on-site use at Harrow International School Hong Kong. It provides boarders with a digital Gold Coast sign out/in, allows Y13s to sign in to the day gym, and streamlines the process of giving merits and spots for prefects and ambassadors!
Screenshots
Verdict
The clearest difference is update cadence: SI App at weekly against Numbas's every 3 months. On price, ads, 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.
Numbas ships an update every 3 months, SI App weekly. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.
| Parameter | Numbas | SI App |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.0.0 — better |
| Further details — not scored | ||
| Size | 0 MB | 46 MB |
| Age rating | 17+ | 17+ |
| Developer | Newcastle University | Harrow International School (Hong Kong) Limited |
In-app purchases
Numbas
No in-app purchases
SI App
No in-app purchases
