# 小光Erp vs 天天K歌

The clearest difference is in-app purchases: 小光Erp at none against 天天K歌's 4. 小光Erp also leads on iOS requirement (8.0 vs 13). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 天天K歌 sells 4 one-off in-app purchases. 小光Erp asks for nothing beyond the download.

小光Erp ships an update every 9 days, 天天K歌 every 2 weeks. The most recent releases landed on September 8, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | 小光Erp | 天天K歌 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Size | 22 MB | 61 MB |
| Requires iOS | **8.0** | 13 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [光平 吴](https://appshunter.io/developer/1072303227) | [晨 陈](https://appshunter.io/developer/6790364713) |

## What reviewers say

### 小光Erp

[App page](https://appshunter.io/ios/app/erp/id1604111783)

**Features:** macOS Compatibility

**In-app purchases:** none


### 天天K歌

[App page](https://appshunter.io/ios/app/k/id6790620865)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30元积分 | $3.99 | one-time |
| 50元积分 | $6.99 | one-time |
| 100元积分 | $14.99 | one-time |
| 永久会员 | $29.99 | one-time |


## Frequently asked questions

### Is 小光Erp free?

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

### Is 天天K歌 free?

天天K歌 is free to download, with in-app purchases available.

### Do 小光Erp or 天天K歌 have ads?

Neither 小光Erp nor 天天K歌 shows ads.

### Which is updated more often, 小光Erp or 天天K歌?

小光Erp ships an update every 9 days, and 天天K歌 every 2 weeks. Most recently, 小光Erp was updated on September 8, 2026 and 天天K歌 on September 11, 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.*