# Wang Learning Centre vs Sum Serenity

The clearest difference is in-app purchases: Wang Learning Centre at none against Sum Serenity's 1. Wang Learning Centre also leads on update cadence (every 4 months vs every 8 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sum Serenity sells 1 one-off in-app purchase. Wang Learning Centre asks for nothing beyond the download.

Wang Learning Centre ships an update every 4 months, Sum Serenity every 8 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Wang Learning Centre | Sum Serenity |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 8 months |
| Monetization | Free | — |
| Size | 25 MB | 28 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DL IDEAS PTE. LTD.](https://appshunter.io/developer/1397759896) | [Blossom Labs](https://appshunter.io/developer/1723890403) |

## What reviewers say

### Wang Learning Centre

[App page](https://appshunter.io/ios/app/wang-learning-centre/id6451388257)

This app provides parents with convenient access to their child's educational journey. Parents can manage schedules, request class changes or replacements, and handle payments and invoices.

**Highlights:** View course schedules, Request replacement classes, Initiate class changes, Transfer to different courses/centers, Manage invoices and payments, Access student profiles

**Features:** macOS Compatibility

**In-app purchases:** none


### Sum Serenity

[App page](https://appshunter.io/ios/app/sum-serenity-mental-maths/id6475314608)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Serenity Seeker | $1.99 | one-time |


## Frequently asked questions

### Is Wang Learning Centre free?

Wang Learning Centre is free to download, with no in-app purchases.

### Is Sum Serenity free?

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

### Do Wang Learning Centre or Sum Serenity have ads?

Neither Wang Learning Centre nor Sum Serenity shows ads.

### Which is updated more often, Wang Learning Centre or Sum Serenity?

Wang Learning Centre ships an update every 4 months, and Sum Serenity every 8 months. Most recently, Wang Learning Centre was updated on November 3, 2026 and Sum Serenity on November 8, 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.*