Comparison

Base 10 Blocks K vs Owlet

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

Head to head
About

Base 10 Blocks K

Features
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Free until March 1, 2016. Practice representing 2-digit numbers 10-99. Designed specifically for use in K-1 classrooms. Drag 10s and 1s blocks one at a time to the work area to represent the target number displayed. OR, drag the Blocks into place and then identify the number. Feedback is provided at any time by tapping the “checkmark” button at the top of the screen. Options include selecting a specific target number or letting the app randomly select a target from the range you select. Common Core: Kindergarten CCSS.MATH.CONTENT.K.NBT.A.1 Work with numbers 11-19 to gain foundations for place value. Common Core: 1st Grade CCSS.MATH.CONTENT.1.NBT.B.2 Understand place value. Understand that the two digits of a two-digit number represent amounts of tens and ones.

About

Owlet

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Owlet: Cube3 is an app that uses the Owlet CubeTower manipulative. Students create numbers by stacking small cubes in the columns of the CubeTower. Cube3 has five modes. Each corresponds to a different topic in place value: Tens, Hundreds, Money, Hundredths, and Thousandths. For each topic, there are five different activities. - Explore: Students place cubes in the CubeTower to create numbers that are shown on the tablet. - Make: Students are prompted to make a target number by placing cubes in the CubeTower. - Build: Students solve number puzzles. For example, students might be asked to build a number between 200 and 300 using 5 cubes. - Compare: Students create a number in the CubeTower and then compare it to a number generated by the app. - Round: Students use the CubeTower to round a number to a specified place.

Verdict

The call

The clearest difference is update cadence: Owlet at every 6 months against Base 10 Blocks K's every 16 months. Base 10 Blocks K's advantage is iOS requirement (10.0 vs 12.0). 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

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

Base 10 Blocks K ships an update every 16 months, Owlet every 6 months. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 6 level
Base 10 Blocks K versus Owlet: the parameters behind the verdict, then further details
ParameterBase 10 Blocks KOwlet
PriceFreeFree
Rating—1.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 16 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNoNo
DevicesiPadiPad, Mac — better
Requires iOS10.0 — better12.0
Further details — not scored
Size37 MB123 MB
Age rating4+4+
DeveloperClassroom Focused SoftwareBirdBrain Technologies LLC

In-app purchases

None

Base 10 Blocks K

No in-app purchases

None

Owlet

No in-app purchases

Questions

Is Base 10 Blocks K free?
Base 10 Blocks K is free to download, with no in-app purchases.
Is Owlet free?
Owlet is free to download, with no in-app purchases.
Do Base 10 Blocks K or Owlet have ads?
Neither Base 10 Blocks K nor Owlet shows ads.
Which is updated more often, Base 10 Blocks K or Owlet?
Base 10 Blocks K ships an update every 16 months, and Owlet every 6 months. Most recently, Base 10 Blocks K was updated on October 6, 2026 and Owlet on October 24, 2026.

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