# 演算写字板 vs 灵光

The clearest difference is iOS requirement: 演算写字板 at 9.0 against 灵光's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 10 days. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 演算写字板 | 灵光 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (89 ratings)](https://appshunter.io/ios/app/id6751496092/reviews)** |
| Number of ratings | — | **89** |
| Positive reviews | — | 74.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | Every 10 days |
| Monetization | — | Free |
| Size | 12 MB | 287 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [志化 彭](https://appshunter.io/developer/1226811775) | [Alipay (Hangzhou) Technology Co., Ltd.](https://appshunter.io/developer/333206292) |

## What reviewers say

### 演算写字板

[App page](https://appshunter.io/ios/app/whiteboard/id1616507212)

**Features:** macOS Compatibility

**In-app purchases:** none


### 灵光

[App page](https://appshunter.io/ios/app/id6751496092)

This AI-powered assistant helps manage complex tasks and daily affairs. It understands goals, organizes steps, and proactively tracks progress from start to finish. Connect to services to save money and time, and receive timely reminders for important events.

**Highlights:** Proactive AI task management, Service integration for savings, Continuous progress tracking, Task status visualization, Creative content generation, Secure credential management

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

**In-app purchases:** none


## Frequently asked questions

### Is 演算写字板 free?

演算写字板 is free to download, with no in-app purchases.

### Is 灵光 free?

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

### Do 演算写字板 or 灵光 have ads?

Neither 演算写字板 nor 灵光 shows ads.

### Which is updated more often, 演算写字板 or 灵光?

演算写字板 ships an update every 10 days, and 灵光 every 10 days. Most recently, 演算写字板 was updated on November 3, 2026 and 灵光 on November 8, 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.*