Number Line Math K2 vs Phonogram Sounds
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Number Line Math K2
This app helps young learners practice addition, subtraction, and comparison skills up to 20 using an interactive number line. Users can customize problems to focus on different unknown quantities and specific math facts.
- Addition and subtraction up to 20
- More Than/Less Than comparisons
- Interactive number line tool
- Customizable unknown quantities
- Selectable math facts to practice
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Practice addition and subtraction facts with sums and minuends to 20. Or work with "More Than" and "Less Than" sentences. For example: What number is 5 more than 6? What number is 3 less than 7? Use a number line as a tool for solving the problems. Adjust the options to include any combination of Result, Change, or Start as the unknown quantity. Select the facts to practice.
Phonogram Sounds
This interactive app provides clear audio pronunciations for letter sounds and combinations, featuring all 72 basic phonograms from a popular language arts curriculum. It's designed to support reading and spelling development for learners of all ages.
- Hear correct pronunciation of sounds
- Clear enunciation of letters and combinations
- Includes all 72 basic phonograms
- Supports reading and spelling skills
- Interactive learning experience
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Touch a button and hear the correct pronunciation! *Check that your sound is turned on!* This interactive program features clear enunciation of the sounds of the letters and letter combinations (also known as phonograms). Contains all 72 of the basic phonograms as taught in the All About Reading and All About Spelling language arts curriculum. All About Reading is a multisensory, mastery-based program that starts with essential pre-reading skills and continues on to teach all five key components of reading. All About Spelling teaches encoding skills, spelling rules, and multisensory strategies to help your student become a proficient speller for life. Our lightly scripted “open and go” lesson plans and mastery-based approach leave no gaps and make this curriculum a favorite of homeschool families everywhere. Suitable for all ages and learning styles!
Screenshots
Verdict
The clearest difference is rating: Phonogram Sounds at 4.0 against Number Line Math K2's 2.0. Phonogram Sounds also leads on ratings volume (84 vs 3) and update cadence (every 6 months vs every 12 months). Number Line Math K2's advantage is iOS requirement (10.0 vs 15.0). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
Phonogram Sounds holds the better App Store score, 4.0 against 2.0. That said, the two scores are not equally well evidenced: Phonogram Sounds has 84 ratings behind it against 3, so its average is the more settled of the two.
Number Line Math K2 ships an update every 12 months, Phonogram Sounds every 6 months. The most recent releases landed on October 2, 2026 and October 20, 2026 respectively.
| Parameter | Number Line Math K2 | Phonogram Sounds |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (3 ratings) | 4.0 (84 ratings) — better |
| Positive reviews | — | 69.6% of reviews |
| Number of ratings | 3 | 84 — better |
| Update frequency | Every 12 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 34 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Classroom Focused Software | All About Learning Press, Inc. |
Customer experience
Number Line Math K2
Phonogram Sounds
Bugs and requests
Number Line Math K2
Not enough reviews yet to summarise bugs or requests.
Phonogram Sounds
Reported bugs
7 issues- R says /er/ instead of /r/
- Sound not working
- App crashes
- No sound when tapping phonograms
- Sound only works with ringer on
Show 2 moreShow fewer
- List of phonograms cut off on iPad
- App is stick, no audio, no movement
Requested features
9 requests- Videos showing lip/tongue placement
- Interactive game app
- App for building words/movable tiles
- Level-based sound availability
- Enlarging tapped tile
Show 4 moreShow fewer
- Adding missing phonograms (Level 6, Spalding)
- Adding more sounds for /i/, /e/, /x/, /ou/, /ei/, /oe/, /wor/, /ear/
- Spelling lists for review
- All About Reading app with word reading
In-app purchases
Number Line Math K2
No in-app purchases
Phonogram Sounds
No in-app purchases
Questions
Is Number Line Math K2 free?
Is Phonogram Sounds free?
Which has better reviews, Number Line Math K2 or Phonogram Sounds?
Do Number Line Math K2 or Phonogram Sounds have ads?
Which is updated more often, Number Line Math K2 or Phonogram Sounds?
Other comparisons
