Let's Sum It vs Number Sense Lite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Let's Sum It
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Part of the Indoor Recess Games CFS Bundle Want to have fun practicing math problems with THREE or FOUR addends?! Practice sums to 10.... all Target Sums in this game range from 2 to 10. The goal of the puzzle is to arrange the pieces so that the sum of each horizontal row equals the Target Sum. The current sum for each row is displayed on the far right side of each row in red until it matches the Target Sum... then, it turns green. The catch is you can only slide one piece at a time to the empty square. And, only pieces adjacent to the open square can be moved. The final puzzle piece is displayed below the grid and must be dragged to its correct location as the last move. The last piece must be placed even if it is zero. Adjust the range of Target Sums or play the Challenge mode where the Target Sum is NOT displayed. The TOP 15 Quickest Times are recorded in the app (not game center) when using that mode. Want to play this on your phone? Then, check out the Sum It Climb bundle.
Number Sense Lite
This app helps develop foundational math skills for young learners. It offers engaging activities designed to improve number sense and align with educational standards for pre-K to 3rd grade. Data tracking helps monitor student progress.
- Number sense activities
- Math skill assessment
- Differentiated instruction
- Universal design for learning
- Progress data tracking
- Customizable settings
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Note: This Free version only provides one of the nine activities. The others are available as an in-app purchase. Number sense is foundational to mathematics. Stages math is a number sense app curriculum for assessment and instruction. Activities improve students' number sense and correlate with math standards for typically developing students in pre-K to 3rd grade. Research surrounding differentiated instruction and universal design for learning has guided the development of this software. Instruction and assessment activities are provided in nine key mathematical skill areas. Each skill area has learning scaffolds with customizable settings. For example, you can select activities like counting money, academic goals like the coins and bills presented, and student access method like mouse or switch use. Students begin within the parameters you set. Then, built-in program “smartness” guides students’ advancement in tiny increments. Data are gathered during instructional practice and assessments. Detailed information such as questions asked, student responses, and time spent are reported. The program accumulates student performance over time, which helps you build meaningful student portfolios.
Verdict
The clearest difference is in-app purchases: Let's Sum It at none against Number Sense Lite's 1. Let's Sum It also leads on update cadence (every 3 months vs every 13 months) and iOS requirement (10.0 vs 13.0). On price, ads 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
Both are free to download. Number Sense Lite sells 1 one-off in-app purchase. Let's Sum It asks for nothing beyond the download.
Let's Sum It ships an update every 3 months, Number Sense Lite every 13 months. The most recent releases landed on October 9, 2026 and October 12, 2026 respectively.
| Parameter | Let's Sum It | Number Sense Lite |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPad | iPad |
| Requires iOS | 10.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 37 MB | 207 MB |
| Age rating | 4+ | 4+ |
| Developer | Classroom Focused Software | Attainment Company |
In-app purchases
Let's Sum It
No in-app purchases
Number Sense Lite
- Unlock Full Version$49.99
Questions
Is Let's Sum It free?
Is Number Sense Lite free?
Do Let's Sum It or Number Sense Lite have ads?
Which is updated more often, Let's Sum It or Number Sense Lite?
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