# Math vs Okaydoo 欧卡：提醒事项、清单、任务、待办+日历

The clearest difference is price: Okaydoo 欧卡：提醒事项、清单、任务、待办+日历 at Free against Math's $0.99. Math's advantage is in-app purchases (none vs 5) and iOS requirement (13.0 vs 17.0). On update cadence, ads and device support there is nothing between them.

Okaydoo 欧卡：提醒事项、清单、任务、待办+日历 is free to download; Math costs $0.99 up front. Okaydoo 欧卡：提醒事项、清单、任务、待办+日历 sells 5 in-app purchases, starting at $1.99 per month. Math asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. Both last shipped on November 5, 2026.

## The numbers

| Metric | Math | Okaydoo 欧卡：提醒事项、清单、任务、待办+日历 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Paid | — |
| Size | 36 MB | 74 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [仲达 夏](https://appshunter.io/developer/1436433399) | [梦珠 王](https://appshunter.io/developer/1890692834) |

## What reviewers say

### Math

[App page](https://appshunter.io/ios/app/math-exercises/id6757855175)

Generate and print custom math practice problems for children. Covers various operations from basic arithmetic to fractions and percentages, with adjustable difficulty and format. Ideal for parents and teachers seeking paper-based learning tools.

**Highlights:** Generate printable math exercises, Supports addition, subtraction, multiplication, division, Includes fractions, decimals, and percentages, Customizable problem count and page number, One-click printing functionality, Save favorite practice types

**In-app purchases:** none


### Okaydoo 欧卡：提醒事项、清单、任务、待办+日历

[App page](https://appshunter.io/ios/app/okaydoo-plus/id6761721288)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OkayDoo Pro（月度） | $1.99 | per month |
| OkayDoo Pro（升级订阅） | $9.99 | per year |
| OkayDoo Pro（年度） | $12.99 | per year |
| OkayDoo 标准版（永久） | $14.99 | one-time |
| 创始会员·终身 | $29.99 | one-time |


## Frequently asked questions

### Is Math free?

Math costs $0.99, with no in-app purchases.

### Is Okaydoo 欧卡：提醒事项、清单、任务、待办+日历 free?

Okaydoo 欧卡：提醒事项、清单、任务、待办+日历 is free to download, with in-app purchases available.

### Do Math or Okaydoo 欧卡：提醒事项、清单、任务、待办+日历 have ads?

Neither Math nor Okaydoo 欧卡：提醒事项、清单、任务、待办+日历 shows ads.

### Which is updated more often, Math or Okaydoo 欧卡：提醒事项、清单、任务、待办+日历?

Math ships an update fortnightly, and Okaydoo 欧卡：提醒事项、清单、任务、待办+日历 fortnightly. Most recently, Math was updated on November 5, 2026 and Okaydoo 欧卡：提醒事项、清单、任务、待办+日历 on November 5, 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.*