# SchoolAxis CURB vs iPhonogram

The clearest difference is in-app purchases: SchoolAxis CURB at none against iPhonogram's 1. SchoolAxis CURB also leads on iOS requirement (13.0 vs 15.6). iPhonogram's advantage is update cadence (every 3 months vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. iPhonogram sells 1 one-off in-app purchase. SchoolAxis CURB asks for nothing beyond the download.

SchoolAxis CURB ships an update every 8 months, iPhonogram every 3 months. The most recent releases landed on September 14, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | SchoolAxis CURB | iPhonogram |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (25 ratings)](https://appshunter.io/ios/app/iphonogram/id6444019725/reviews)** |
| Number of ratings | — | **25** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 75 MB | 4 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Canopy Network, LLC](https://appshunter.io/developer/975449628) | [Wozete LLC](https://appshunter.io/developer/1490459546) |

## What reviewers say

### SchoolAxis CURB

[App page](https://appshunter.io/ios/app/schoolaxis-curb/id1023598813)

**In-app purchases:** none


### iPhonogram

[App page](https://appshunter.io/ios/app/iphonogram/id6444019725)

This app helps children and students improve reading skills by teaching phonics. It offers a wide range of phonogram sounds and interactive exercises to make learning engaging and fun. Users can search, sort, and create custom phonogram lists for personalized practice.

**Highlights:** Comprehensive phonogram sound collection, Interactive learning interface, Searchable phonogram database, Sort phonograms by type, Custom phonogram list creation, Personalized study and practice

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock More Features | $9.99 | one-time |


## Frequently asked questions

### Is SchoolAxis CURB free?

SchoolAxis CURB is free to download, with no in-app purchases.

### Is iPhonogram free?

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

### Do SchoolAxis CURB or iPhonogram have ads?

Neither SchoolAxis CURB nor iPhonogram shows ads.

### Which is updated more often, SchoolAxis CURB or iPhonogram?

SchoolAxis CURB ships an update every 8 months, and iPhonogram every 3 months. Most recently, SchoolAxis CURB was updated on September 14, 2026 and iPhonogram on September 18, 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.*