# 年轮 vs Inspect

The clearest difference is in-app purchases: Inspect at none against 年轮's 4. 年轮's advantage is update cadence (every 5 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 年轮 sells 4 in-app purchases, starting at $0.99 per month. Inspect asks for nothing beyond the download.

年轮 ships an update every 5 days, Inspect fortnightly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 年轮 | Inspect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (103 ratings)](https://appshunter.io/ios/app/id1486305873/reviews)** | — |
| Number of ratings | **103** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Freemium | — |
| Size | 147 MB | 15 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [玉栋 侯](https://appshunter.io/developer/1439153484) | [King Lim Gerald Me](https://appshunter.io/developer/1760267859) |

## What reviewers say

### 年轮

[App page](https://appshunter.io/ios/app/id1486305873)

This app helps you memorize information efficiently by scheduling timed reviews based on the Ebbinghaus forgetting curve. It allows you to create custom review plans, hide keywords for recall practice, and organize your study materials with folders and tags.

**Highlights:** Ebbinghaus forgetting curve review scheduling, Customizable review plans, Keyword hiding for recall practice, Card block editing (text, code, math), Folder, tag, and color organization, iCloud synchronization, Backup and restore functionality

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $0.99 | per month |
| Annual subscription | $6.99 | per year |
| Permanent | $12.99 | one-time |
| Permanent | $19.99 | one-time |


### Inspect

[App page](https://appshunter.io/ios/app/inspect/id6761038515)

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

**In-app purchases:** none


## Frequently asked questions

### Is 年轮 free?

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

### Is Inspect free?

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

### Do 年轮 or Inspect have ads?

Neither 年轮 nor Inspect shows ads.

### Which is updated more often, 年轮 or Inspect?

年轮 ships an update every 5 days, and Inspect fortnightly. Most recently, 年轮 was updated on November 3, 2026 and Inspect 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.*