SUDiver vs Numbers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SUDiver
This educational app brings Stanford University's digital interactive video exploration tools to mobile devices. It allows users to create and share time-space referenced video clips, enabling detailed analysis of any video content.
- Guided-noticing spatial and temporal video referencing
- Touch interface for moving and resizing reference rectangles
- Networked sharing of point-of-view video clips
- Analysis of personal videos and YouTube content
- Social sharing of video clips to platforms like Twitter and Facebook
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The Diver app brings the original Stanford University Digital Interactive Video Exploration and Reflection (DIVER) project* to Apple's iPad and iPhone. Features of the new app include: • A touch interface implementation of Diver's "guided-noticing" spatial and temporal point-of-view video referencing; users can move & resize the Diver guided-noticing rectangle via iOS's familiar touch interface. • An updated implementation of Diver's networked/Internet sharing of point-of-view video clips– allowing for a) dives** directly on your own or anyone else's videos, and b) easy social sharing of dive clips. For more info about the app read the latest notes/documentation: https://app.diver.video/howto/diver_howto_442_01.php Please also see our EULA (end-user-licensing-agreement): https://app.diver.video/eula * For more info about the original Stanford University Diver project visit: https://diver.stanford.edu ** "Dives" are time/space referenced video clips made by (temporally) selecting sub-portions of a video and (spatially) highlighting areas of the video's frame.
Numbers
This interactive math app helps elementary students master place value and other core concepts through engaging flip cards and hands-on gestures. It covers a wide range of topics from whole numbers and decimals to fractions, percentages, and time.
- Place value exploration (ones to millions)
- Decimal and fraction visualization
- Percentage and mixed number conversion
- Multiplication practice
- Money and time telling
- Rounding and Roman numeral conversion
- Unit conversions (temperature, length, weight, volume)
- Auditory learning support
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Numbers is a fun and interactive math learning app designed for elementary students. With colorful flip cards and hands-on gestures, children can explore essential math concepts through play. The app features 14 learning modes covering a wide range of math topics: Whole Numbers - Explore place value from ones to millions with up to 7 digit cards. See the expanded decomposition form to understand how numbers are built. Decimals - Learn decimal place values from thousands down to thousandths with a visual decimal point overlay. Fractions - Discover fractions with six linked cards showing the fraction, decimal, percentage, name, pie chart, and equivalent fraction. Mixed Fractions - Convert between improper fractions and mixed numbers. See pie charts that show whole parts and remainders side by side. Percentages - Calculate percentages of any number. See the equation laid out as cards with a visual bar showing the proportion. Multiplication - Practice times tables from 1 to 12 with dot arrays and skip counting sequences. Money - Count US dollars and British pounds with coins and bills. The total updates automatically as you add or remove. Time - Tell time with both analog and digital clocks. Minutes move in 5 minute steps with hour and AM PM rollover. Rounding - Round any number from 0 to 9999 to the nearest 10, 100, or 1000. A rule card explains the rounding logic. Roman Numerals - See any number from 1 to 3999 as a Roman numeral with a breakdown by thousands, hundreds, tens, and ones. Temperature - Convert between Celsius and Fahrenheit with a color changing thermometer that responds to the temperature. Length - Convert between centimeters, meters, kilometers, and miles. Weight - Convert between grams and kilograms. Water Volume - Convert between milliliters and liters. Every card uses a satisfying split flap animation. Swipe up or down to change values, tap to increment, and double tap to decrement. A listen button reads the current content aloud to support auditory learners. Designed for iPad and iPhone with no ads, no in app purchases, and no internet required.
Screenshots
Verdict
The clearest difference is price: SUDiver at Free against Numbers's $2.99. SUDiver also leads on rating (3.0 vs 1.0). Numbers's advantage is chart position (#195 vs unranked). On ratings volume, update cadence, ads and in-app purchases 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
SUDiver is free to download; Numbers costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SUDiver holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
SUDiver ships an update monthly, Numbers every 2 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | SUDiver | Numbers |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 3.0 (2 ratings) — better | 1.0 (1 ratings) |
| Number of ratings | 2 — better | 1 |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | — | #195 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Diver Video LLC | Anand Raj R |
Customer experience
SUDiver
Numbers
In-app purchases
SUDiver
No in-app purchases
Numbers
No in-app purchases
Questions
Is SUDiver free?
Is Numbers free?
Which has better reviews, SUDiver or Numbers?
Do SUDiver or Numbers have ads?
Which is updated more often, SUDiver or Numbers?
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