# MasterJi vs PubDevLib

The clearest difference is in-app purchases: MasterJi at none against PubDevLib's 2. MasterJi also leads on ads (none vs shown) and update cadence (weekly vs every 3 months). PubDevLib's advantage is iOS requirement (13.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. PubDevLib sells 2 in-app purchases, starting at $1.99 per month. MasterJi asks for nothing beyond the download.

MasterJi ships an update weekly, PubDevLib every 3 months. The most recent releases landed on September 28, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | MasterJi | PubDevLib |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/masterji-learn-and-code/id6753772146/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Free | — |
| Size | 47 MB | 100 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Hitesh Choudhary](https://appshunter.io/developer/1273049319) | [Olga Ivanova](https://appshunter.io/developer/1733570435) |

## What reviewers say

### MasterJi

[App page](https://appshunter.io/ios/app/masterji-learn-and-code/id6753772146)

Practice coding with curated problems, daily drops, and company-tagged sets. Engage in live multiplayer quizzes and community discussions. Track progress with XP, streaks, and badges. It's a free, ad-free platform for interview prep and skill development.

**Highlights:** In-app code editor with multi-language support, Daily problems and company-tagged question sets, Live multiplayer coding quizzes, Progress tracking with XP, streaks, and badges, Community Town Halls for real-time chat, Proof-based submissions and challenge rankings

**Features:** macOS Compatibility

**In-app purchases:** none


### PubDevLib

[App page](https://appshunter.io/ios/app/pubdevlib/id6758752692)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pubdev_by_oliva_subscription | $1.99 | per month |
| pubdev_by_oliva_donation | $1.99 | one-time |


## Frequently asked questions

### Is MasterJi free?

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

### Is PubDevLib free?

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

### Do MasterJi or PubDevLib have ads?

PubDevLib shows ads; MasterJi does not.

### Which is updated more often, MasterJi or PubDevLib?

MasterJi ships an update weekly, and PubDevLib every 3 months. Most recently, MasterJi was updated on September 28, 2026 and PubDevLib on September 30, 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.*