# 视唱练耳专家 vs Spaced

The clearest difference is in-app purchases: 视唱练耳专家 at none against Spaced's 3. 视唱练耳专家 also leads on iOS requirement (9.0 vs 18.0). Spaced's advantage is update cadence (monthly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Spaced sells 3 in-app purchases, starting at $0.99 per month. 视唱练耳专家 asks for nothing beyond the download.

视唱练耳专家 ships an update every 2 months, Spaced monthly. The most recent releases landed on September 21, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 视唱练耳专家 | Spaced |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 166 MB | 356 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [jack lau](https://appshunter.io/developer/1080059706) | [Sam Woolf](https://appshunter.io/developer/1439593063) |

## What reviewers say

### 视唱练耳专家

[App page](https://appshunter.io/ios/app/id1267243444)

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

**In-app purchases:** none


### Spaced

[App page](https://appshunter.io/ios/app/spaced-language-learning/id6743569113)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | per month |
| Premium | $5.99 | per year |
| Premium | $9.99 | one-time |


## Frequently asked questions

### Is 视唱练耳专家 free?

视唱练耳专家 is free to download, with no in-app purchases.

### Is Spaced free?

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

### Do 视唱练耳专家 or Spaced have ads?

Neither 视唱练耳专家 nor Spaced shows ads.

### Which is updated more often, 视唱练耳专家 or Spaced?

视唱练耳专家 ships an update every 2 months, and Spaced monthly. Most recently, 视唱练耳专家 was updated on September 21, 2026 and Spaced on September 24, 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.*