# i甲专线 vs NutriDiary

The clearest difference is update cadence: NutriDiary at every 10 days against i甲专线's every 3 weeks. i甲专线's advantage is iOS requirement (11.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. i甲专线 sells 5 one-off in-app purchases and NutriDiary sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

i甲专线 ships an update every 3 weeks, NutriDiary every 10 days. The most recent releases landed on September 12, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | i甲专线 | NutriDiary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Size | 205 MB | 15 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Aijia Zhuanxian Health Management Co.Ltd](https://appshunter.io/developer/1822498682) | [立元 顾](https://appshunter.io/developer/1896753779) |

## What reviewers say

### i甲专线

[App page](https://appshunter.io/ios/app/i/id1485684120)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 结节服务包 | $0.99 | one-time |
| 爱甲福 | $46.99 | one-time |
| 重医附一随访群课程 | $46.99 | one-time |
| 甲状腺术后正念疗愈 | $59.99 | one-time |
| 爱甲康 | $109.99 | one-time |


### NutriDiary

[App page](https://appshunter.io/ios/app/nutridiary/id6771206904)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $5.99 | per month |
| Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is i甲专线 free?

i甲专线 is free to download, with in-app purchases available.

### Is NutriDiary free?

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

### Do i甲专线 or NutriDiary have ads?

Neither i甲专线 nor NutriDiary shows ads.

### Which is updated more often, i甲专线 or NutriDiary?

i甲专线 ships an update every 3 weeks, and NutriDiary every 10 days. Most recently, i甲专线 was updated on September 12, 2026 and NutriDiary on September 10, 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.*