# DoubtBuddy vs World Inbox My Class

DoubtBuddy and World Inbox My Class are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DoubtBuddy ships an update monthly, World Inbox My Class every 3 weeks. The most recent releases landed on October 10, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | DoubtBuddy | World Inbox My Class |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 94 MB | 93 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Anuj Gupta](https://appshunter.io/developer/1651060633) | [Aakash Sinha](https://appshunter.io/developer/1741940052) |

## What reviewers say

### DoubtBuddy

[App page](https://appshunter.io/ios/app/doubtbuddy/id1670288087)

**In-app purchases:** none


### World Inbox My Class

[App page](https://appshunter.io/ios/app/world-inbox-my-class/id6739157292)

**In-app purchases:** none


## Frequently asked questions

### Is DoubtBuddy free?

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

### Is World Inbox My Class free?

World Inbox My Class is free to download, with no in-app purchases.

### Do DoubtBuddy or World Inbox My Class have ads?

Neither DoubtBuddy nor World Inbox My Class shows ads.

### Which is updated more often, DoubtBuddy or World Inbox My Class?

DoubtBuddy ships an update monthly, and World Inbox My Class every 3 weeks. Most recently, DoubtBuddy was updated on October 10, 2026 and World Inbox My Class on September 25, 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.*