Comparison

Hidden Grid vs AboutNumbers PRO

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

Head to head
About

Hidden Grid

This app encourages screen exploration and teaches basic touch and drag skills with single or multi-touch options. It features colored shapes, patterns, and sound effects that respond to touch, making it ideal for young children and those with visual impairments.

Highlights
  • Screen exploration
  • Touch and drag skills
  • Single and multi-touch
  • Sound effects
  • Ideal for low vision
  • Hand-eye coordination
Features
Read full description

This activity has been designed to encourage exploration of the whole screen and teach basic touch and drag skills including options for single or multitouch. Drag your finger around the screen to reveal coloured shapes and patterns, with different sound effects that change pitch. When you lift your finger the tiles will fade. Black background, different sound effects and bright colours make this a very motivating activity for children with visual impairments as well as being great fun for the very young. The great feedback makes this an ideal cause and effect activity that can help develop hand eye co-ordination. Key Features: • Black background and bright colours ideal for low vision. • Single touch to encourage finger isolation and pointing - may be easier for some users to understand. • Multi-touch for maximum feedback. • Simple interaction and fun for very young children.

About

AboutNumbers PRO

Features
Read full description

AboutNumbers is an early math application aimed at dealing with counting, sets, numbers and calculating in the number domain up to 10. An important feature throughout the entire applications is the structured representation of sets (2 lines and 5 columns) to facilitate non-counting strategies of recognizing sets, the understanding of the relation among numbers and the notion of numbers in general. AboutNumbers for iPad is available in 2 versions: - AboutNumbers: Only a limited number of exercises can be used. An In-App Purchase is required to use all exercises. - AboutNumbers PRO: All exercises can be used without limitation. The application is designed for pre-school and elementary school children with or without impairments, for people with math deficiencies, as well as young people and adults with learning disabilities. The application contains a wide number of increasingly complex exercises. Each exercise is aimed to further a specific skill (e.g. counting or calculating). Completed exercises are recorded by the application to document the learning progress. To enable the use of this application with several people, a user manager is offered. Individual settings and results will be saved and can be loaded quickly. The exercises can be operated by alternative input devices such as external switches or eye tracking. Objectives: Practice counting and calculating in the number domain up to 10 Train non-counting strategies of recognizing sets Areas of application: Early Intervention Children and adults with learning disabilities Dyscalculia

Verdict

The call

The clearest difference is price: Hidden Grid at $3.99 against AboutNumbers PRO's $44.99. Hidden Grid also leads on iOS requirement (6.0 vs 12.0). On update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Hidden Grid costs $3.99 and AboutNumbers PRO $44.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Hidden Grid ships an update every 14 months, AboutNumbers PRO every 11 months. The most recent releases landed on October 4, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 8 level
Hidden Grid versus AboutNumbers PRO: the parameters behind the verdict, then further details
ParameterHidden GridAboutNumbers PRO
Price$3.99 — better$44.99
Rating1.0 (1 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 14 monthsEvery 11 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPadiPad
Requires iOS6.0 — better12.0
Further details — not scored
Size23 MB103 MB
Age rating4+4+
DeveloperInclusive Technology LtdIntegraTools GmbH

In-app purchases

None

Hidden Grid

No in-app purchases

None

AboutNumbers PRO

No in-app purchases

Questions

Is Hidden Grid free?
Hidden Grid costs $3.99, with no in-app purchases.
Is AboutNumbers PRO free?
AboutNumbers PRO costs $44.99, with no in-app purchases.
Do Hidden Grid or AboutNumbers PRO have ads?
Neither Hidden Grid nor AboutNumbers PRO shows ads.
Which is updated more often, Hidden Grid or AboutNumbers PRO?
Hidden Grid ships an update every 14 months, and AboutNumbers PRO every 11 months. Most recently, Hidden Grid was updated on October 4, 2026 and AboutNumbers PRO on October 9, 2026.

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