Comparison

1 vs REDMARKER

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

Head to head
About

1

This app offers children engaging, one-minute math tasks to build number confidence and fluency. Developed by award-winning math resource providers, it delivers targeted practice in short, fun bursts, perfect for home or classroom use.

Highlights
  • One-minute timed math tasks
  • Builds number confidence and fluency
  • Targeted practice in basic number skills
  • Subitising practice
  • Randomly generated questions
  • Instant feedback and scoring
  • Hint button for support
Features
Read full description

1-Minute Maths is a free app that helps children build number confidence & fluency through engaging, 1-minute tasks. An accessible tool for children to enjoy at home or in class! Developed by White Rose Maths, award-winning providers in maths resources for the classroom and home, it delivers targeted practice in short, bite-sized chunks, perfect for learning and showing children how much fun they can have with basic number. Who is it for? The app is perfect for primary school pupils, individual one-minute tasks focus on adding and subtracting, multiplying and dividing – and on ‘Subitising’, the skill of instantly recognising the number of items in a group without counting. How does it work? Each task gives children engaging and targeted practice in basic number. The app includes a range of topics, with no specific starting point, so a child can begin wherever they like. By applying randomly generated questions every time, users learn the concept and not a sequence of answers. Once a task completes, questions are marked and presented on the screen, giving instant feedback on how they’ve done. It’s quick, simple to use, and most of all, FUN! 1-Minute Maths in action Choose a topic – there are 87 available. Answer a unique set of questions. If needed, use the ‘Hint’ button – it shows the question in a different but familiar way. When the 1-minute is up, answers appear on the screen in seconds. Keen for another task? Then simply go again! An easy-to-use app – and completely FREE! Parents and Carers: download and watch your child have fun while they continue learning maths at home! Teachers: use as a classroom teaching resource – the tasks align consistently with approaches used in the White Rose Maths schemes of learning! Top 10 reasons for using 1-Minute Maths! 1. Excellent number practice – and no distractions. 2. Enjoyable maths tasks children want to complete. 3. Instills basic number concepts during early years. 4. A clear, intuitive process that children pick up straight away. 5. No login or internet access needed. Just download and play! 6. A motivator - how many correct answers can they score? 7. Helpful hints for support when it’s needed. 8. Brilliant for building number confidence and fluency. 9. Random question generator means no repetition. 10. Completely FREE to download! With White Rose Maths, Everyone can do maths: everyone can!

About

REDMARKER

Features
Read full description

Use your phone to mark maths worksheets in seconds. See which answers need practice, keep each child's work organised, and spot learning gaps early, 80–93% faster than marking by hand. Point at a worksheet, tap Capture—or use Smart Scan to move through a full booklet quickly. You’ll see a green tick when a page is correct, or red markers showing exactly what needs checking, so you spend time teaching instead of searching for mistakes. Perfect for parents, teachers, and tutors who want faster homework marking. How it works • Capture — Scan one worksheet or a whole booklet. Smart Scan moves page-to-page automatically. • Review — See correct answers instantly; handwritten responses supported. • Organise — Names and classes recognised so work sorts into folders automatically. • Filter — Enter filter criteria to locate worksheets instantly. • Export — Save results and build a progress record over time. • View Progress — Accuracy charts show improvement and highlight where support is needed. What it supports • Drill-style maths for ages 4–10 • Printed worksheets and handwritten answers • Organisation by class and student You stay in control: every result is visible for review, with progress you can track over time. Turn three-quarters of an hour of marking into three minutes, and use the time you save helping children understand their mistakes.

Screenshots

14 screens
REDMARKER4 screens

Verdict

The call

The clearest difference is in-app purchases: 1 at none against REDMARKER's 2. REDMARKER's advantage is update cadence (every 11 days vs every 3 months). On price, ads, device support and iOS requirement 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. REDMARKER sells 2 one-off in-app purchases. 1 asks for nothing beyond the download.

UpkeepUpdate frequency

1 ships an update every 3 months, REDMARKER every 11 days. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 8 level
1 versus REDMARKER: the parameters behind the verdict, then further details
Parameter1REDMARKER
PriceFreeFree
Rating4.2 (5 ratings) — better—
Positive reviews73.3% of reviews—
Number of ratings5 — better—
Update frequencyEvery 3 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.415.1 — better
Further details — not scored
Size27 MB37 MB
Age rating4+4+
DeveloperWhite Rose Education Services LimitedGary Smith

In-app purchases

None

1

No in-app purchases

2 purchases

REDMARKER

One-time2
  • RedMarker Essentials Pack$5.29
  • RedMarker Value Pack$15.99

Questions

Is 1 free?
1 is free to download, with no in-app purchases.
Is REDMARKER free?
REDMARKER is free to download, with in-app purchases available.
Do 1 or REDMARKER have ads?
Neither 1 nor REDMARKER shows ads.
Which is updated more often, 1 or REDMARKER?
1 ships an update every 3 months, and REDMARKER every 11 days. Most recently, 1 was updated on October 13, 2026 and REDMARKER on October 6, 2026.

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