# Missnote vs BY My Question

The clearest difference is device support: Missnote at 3 against BY My Question's 1. Missnote also leads on iOS requirement (15.0 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Missnote sells 4 in-app purchases, starting at $3.99 per month and BY My Question sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Missnote ships an update fortnightly, BY My Question every 9 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Missnote | BY My Question |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 74 MB | 26 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mooncode](https://appshunter.io/developer/1742583074) | [Jia Hong Kuo](https://appshunter.io/developer/1896336194) |

## What reviewers say

### Missnote

[App page](https://appshunter.io/ios/app/missnote-mistake-journal/id6755079356)

This app helps students and test-takers transform incorrect answers into learning opportunities. Save missed questions with photos or text, organize them with tags and custom notebooks, and receive AI-powered review suggestions. It facilitates a smarter study routine by prioritizing what needs reviewing.

**Highlights:** Save questions via photo or text, Organize with tags and custom notebooks, AI-powered review suggestions, Spaced repetition review timing, Review reminders, Cross-device syncing, Create and print PDFs

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pro - 1 month | $3.99 | per month |
| Sync Plus - 1 month | $3.99 | per month |
| pro - 1 year | $32.99 | per year |
| Pro - lifetime | $5.99 | one-time |


### BY My Question

[App page](https://appshunter.io/ios/app/by-my-question/id6766905159)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50 AI 點數 | $2.99 | one-time |
| 200 AI 點數 | $9.99 | one-time |
| 500 AI 點數 | $19.99 | one-time |


## Frequently asked questions

### Is Missnote free?

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

### Is BY My Question free?

BY My Question is free to download, with in-app purchases available.

### Do Missnote or BY My Question have ads?

Neither Missnote nor BY My Question shows ads.

### Which is updated more often, Missnote or BY My Question?

Missnote ships an update fortnightly, and BY My Question every 9 days. Most recently, Missnote was updated on November 5, 2026 and BY My Question on October 31, 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.*