# Comprehension Builder. vs 1729 Math

The clearest difference is review sentiment: 1729 Math at 100% against Comprehension Builder.'s 0%. 1729 Math also leads on rating (5.0 vs 2.0) and update cadence (monthly vs every 47 months). Comprehension Builder.'s advantage is iOS requirement (12.2 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Comprehension Builder. sells 3 one-off in-app purchases and 1729 Math sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

1729 Math holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 0% of Comprehension Builder.'s written reviews are positive against 100% of 1729 Math's.

Comprehension Builder. ships an update every 47 months, 1729 Math monthly. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Comprehension Builder. | 1729 Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (2 ratings)](https://appshunter.io/ios/app/comprehension-builder/id1238808362/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/1729-math/id6784286882/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 47 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 9 MB |
| Requires iOS | **12.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Janine Toole](https://appshunter.io/developer/839832427) | [Long Nguyen](https://appshunter.io/developer/6784286884) |

## What reviewers say

### Comprehension Builder.

[App page](https://appshunter.io/ios/app/comprehension-builder/id1238808362)

This app helps users improve reading comprehension, working memory, and the ability to answer questions about text. It features incremental learning with texts that increase in length and difficulty as skills develop, along with a reward system for motivation. Designed for learners of all ages, including those with special needs or learning English.

**Highlights:** Passage comprehension practice, Working memory development, Answering multiple-choice questions, Incremental learning levels, Reward Center for motivation, 200+ fiction and non-fiction texts, Content designed by teachers

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Two Users | $1.99 | one-time |
| All Levels | $3.99 | one-time |
| 10 Users | $3.99 | one-time |


### 1729 Math

[App page](https://appshunter.io/ios/app/1729-math/id6784286882)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access (Monthly) | $5.99 | per month |
| Full Access (Annual) | $35.99 | per year |


## Frequently asked questions

### Is Comprehension Builder. free?

Comprehension Builder. is free to download, with in-app purchases available.

### Is 1729 Math free?

1729 Math is free to download, with in-app purchases available.

### Which has better reviews, Comprehension Builder. or 1729 Math?

1729 Math is rated higher. Comprehension Builder. averages 2.0 out of 5 from 2 ratings, while 1729 Math averages 5.0 from 2 ratings.

### Do Comprehension Builder. or 1729 Math have ads?

Neither Comprehension Builder. nor 1729 Math shows ads.

### Which is updated more often, Comprehension Builder. or 1729 Math?

Comprehension Builder. ships an update every 47 months, and 1729 Math monthly. Most recently, Comprehension Builder. was updated on November 2, 2026 and 1729 Math on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*