Comparison

MathsScreen vs onetest assessment

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MathsScreen

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A fast and accurate assessment of number and arithmetic skills, suitable for children between 5 1/2 and 12 years of age working under supervision of a Teacher or Teaching Assistant. A MathsScreen assessment consists of three number recognition tests and five 60-second arithmetic tests, and should take 10 minutes or less to complete. Assessments can be interrupted if necessary and will resume from the beginning of the most recent test. To launch an assessment, the adult supervising the assessment should scan the unique QR code for the pupil they want to assess. No personally identifiable information is stored on the device. At the end of an assessment, the data is uploaded to oxedandassessment.com and reports can be generated showing ranked scores for a year group. If no internet connection is available, the data can be stored on the device and uploaded at a later date. MathsScreen is suitable for schools and organisations using English as the medium of education.

About

onetest assessment

Features
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What is onetest? onetest is a rapid digital assessment that gives a snapshot of a child’s level in literacy and numeracy. It gives both an overall score and scores for individual subskills in literacy and numeracy. Who is it for? onetest is for use by Ministries of Education, teachers, researchers and implementation partners. Ultimately though, onetest is for the child. When key stakeholders can rapidly determine children’s literacy and numeracy levels, appropriate action can be taken to make a change that will improve children’s learning outcomes as soon as possible. The goal of onetest is to bring positive change for the child and their learning outcomes, by identifying which interventions are working, whether that’s on a national level or within a single classroom. Languages onetest is currently available in: Chichewa, Swahili, French for West and Central Africa, Portuguese for Mozambique, International English and American English. More languages will follow. How has onetest been developed and tested? onetest has been developed in-house at onebillion, with input from education experts and with our years of experience developing learning solutions that work for the child. Each localisation is created with input from local pedagogy experts to ensure quality is maintained in each new language. We are working with research partners to validate onetest against existing assessments to ensure accuracy.

Screenshots

MathsScreen4 screens
onetest assessment4 screens

Verdict

The call

The clearest difference is iOS requirement: onetest assessment at 9.3 against MathsScreen's 15.1. On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

MathsScreen ships an update every 18 months, onetest assessment every 14 months. The most recent releases landed on September 23, 2026 and September 9, 2026 respectively.

Scorecard1 real difference · 5 level
MathsScreen versus onetest assessment: the parameters behind the verdict, then further details
ParameterMathsScreenonetest assessment
PriceFreeFree
Update frequencyEvery 18 monthsEvery 14 months — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.19.3 — better
Further details — not scored
Size27 MB83 MB
Age rating4+4+
DeveloperOxEd and Assessment Ltdonebillion

In-app purchases

None

MathsScreen

No in-app purchases

None

onetest assessment

No in-app purchases

Questions

Is MathsScreen free?
MathsScreen is free to download, with no in-app purchases.
Is onetest assessment free?
onetest assessment is free to download, with no in-app purchases.
Do MathsScreen or onetest assessment have ads?
Neither MathsScreen nor onetest assessment shows ads.
Which is updated more often, MathsScreen or onetest assessment?
MathsScreen ships an update every 18 months, and onetest assessment every 14 months. Most recently, MathsScreen was updated on September 23, 2026 and onetest assessment on September 9, 2026.

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