# Understanding Math vs School Letters

The clearest difference is update cadence: School Letters at weekly against Understanding Math's every 4 months. Understanding Math's advantage is review sentiment (100% vs 75%) and price ($3.99 vs $8.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Understanding Math costs $3.99 and School Letters $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Understanding Math ships an update every 4 months, School Letters weekly. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Understanding Math | School Letters |
| --- | --- | --- |
| Price | **$3.99** | $8.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/understanding-math-telling-time/id1155019604/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | **100.0% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Paid | Paid |
| Size | 43 MB | 380 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [appp media UG](https://appshunter.io/developer/739118031) | [Martin Seidel](https://appshunter.io/developer/1580372911) |

## What reviewers say

### Understanding Math

[App page](https://appshunter.io/ios/app/understanding-math-telling-time/id1155019604)

This educational app helps children learn to tell time with interactive games and activities. It features voice recording, adjustable difficulty, and progress tracking for parents and teachers. Designed to align with Common Core Math Standards, it offers a fun and engaging way to master time-telling skills.

**Highlights:** Voice recording for time recitation, Interactive learning clock mechanics, Setting analog and digital clocks, Calculating periods of time, Self-motivating timer function, Progress tracking for parents/teachers, Aligned with Common Core Math Standards

**Features:** macOS Compatibility

**In-app purchases:** none


### School Letters

[App page](https://appshunter.io/ios/app/school-letters/id6756991830)

This app helps young children learn to write letters and numbers with interactive guidance and instant feedback. It offers a school-approved font, stroke order practice, and motivational elements to encourage neat handwriting development.

**Highlights:** Interactive letter and number writing, Stroke order and direction guidance, Instant accuracy feedback, Voice and visual demonstrations, Progress tracking and saving, PDF export of drawings, Motivational achievements

**Features:** macOS Compatibility, iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is Understanding Math free?

Understanding Math costs $3.99, with no in-app purchases.

### Is School Letters free?

School Letters costs $8.99, with no in-app purchases.

### Do Understanding Math or School Letters have ads?

Neither Understanding Math nor School Letters shows ads.

### Which is updated more often, Understanding Math or School Letters?

Understanding Math ships an update every 4 months, and School Letters weekly. Most recently, Understanding Math was updated on November 2, 2026 and School Letters on November 7, 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.*