Comparison

Place Value MAB Addition vs NAP Locked down browser

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

Head to head
About

Place Value MAB Addition

This app uses virtual Multibase Arithmetic Blocks (MAB) to model addition problems, helping children understand place value and regrouping. It offers interactive modules for teachers and students to practice addition up to 9999 without needing physical blocks.

Highlights
  • Virtual MAB blocks
  • Place value chart
  • Regrouping and trading mechanics
  • Addition practice up to 9999
  • Adjustable difficulty levels
  • Teaching module for custom lessons
Features
Read full description

Little Monkey Apps MAB Addition builds on the previous introductory App, Little Monkey Apps MAB. The App compliments the use of hands on experiences for modelling addition problems using MAB blocks in instances when using real blocks is not practical. MAB or Multibase Arithmetic Blocks are wooden blocks used to help children understand the base ten properties of the numerical system in particular regrouping from one place value column to another. MAB aids students to physically move the blocks to demonstrate their understanding of addition to 9999. =Teaching Module= Contains place value chart, units, longs, flats and blocks, basket for trading and regrouping, random number generator, counter and camera feature. This module is for teachers to create their own learning experiences or for students to use when solving written problems, instead of using real wooden MAB. Students place 'ten' objects in the basket to 'make' or one object to 'break'. 'Make' label appears when ten objects have been placed in the basket and 'Break' label when one object is placed in the basket. =Learn to Trade= Blocks are set out on the floor, to be placed on the place value chart. Use the basket to regroup or trade, then type the answer on the keypad. =No regroup= Use the MAB blocks to complete the addition problem, placing both numbers on the place value chart and then typing the answer on the keypad. Levels of difficulty can be changed the up and down arrow buttons. No regrouping required in this activity as a precursor to the following task. =Regroup= Use the MAB blocks to complete the addition problem, placing both numbers on the place value chart, use the basket to change blocks to represent the correct place value, then type the answer on the keypad. Levels of difficulty can be changed the up and down arrow buttons. Task appears similar to previous challenge but with regrouping in all levels.

About

NAP Locked down browser

This secure browser is designed for students taking standardized online assessments. It locks down the device to prevent cheating by restricting access to other apps and system functions during tests.

Highlights
  • Secure testing environment
  • Restricts app switching
  • Blocks unauthorized utilities
  • Prevents access to device resources
  • Facilitates NAPLAN and NAP Sample tests
Read full description

The NAP Locked down browser allows students to securely participate in NAPLAN and NAP Sample tests on the Online National Assessment Platform. The application regulates access to utilities and system functions, prevents application switching and unauthorised device resources being used during an assessment.

Verdict

The call

The clearest difference is price: NAP Locked down browser at Free against Place Value MAB Addition's $1.99. Place Value MAB Addition's advantage is update cadence (every 3 months vs every 7 months) and iOS requirement (12.0 vs 17.0). On 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

NAP Locked down browser is free to download; Place Value MAB Addition costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Place Value MAB Addition ships an update every 3 months, NAP Locked down browser every 7 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
Place Value MAB Addition versus NAP Locked down browser: the parameters behind the verdict, then further details
ParameterPlace Value MAB AdditionNAP Locked down browser
Price$1.99Free — better
Rating5.0 (2 ratings) — better—
Positive reviews—14.3% of reviews
Number of ratings2 — better—
Update frequencyEvery 3 months — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPadiPad
Requires iOS12.0 — better17.0
Further details — not scored
Size16 MB67 MB
Age rating4+4+
DeveloperAleesha KondysEducation Services Australia Ltd.

Customer experience

Place Value MAB Addition

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

NAP Locked down browser

Written reviews237 reviews
Positive14.3%
Neutral2.1%
Negative83.5%

In-app purchases

None

Place Value MAB Addition

No in-app purchases

None

NAP Locked down browser

No in-app purchases

Questions

Is Place Value MAB Addition free?
Place Value MAB Addition costs $1.99, with no in-app purchases.
Is NAP Locked down browser free?
NAP Locked down browser is free to download, with no in-app purchases.
Do Place Value MAB Addition or NAP Locked down browser have ads?
Neither Place Value MAB Addition nor NAP Locked down browser shows ads.
Which is updated more often, Place Value MAB Addition or NAP Locked down browser?
Place Value MAB Addition ships an update every 3 months, and NAP Locked down browser every 7 months. Most recently, Place Value MAB Addition was updated on October 23, 2026 and NAP Locked down browser on October 25, 2026.

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