# 刀刃 vs Saving Diary

The clearest difference is price: Saving Diary at Free against 刀刃's $2.99. 刀刃's advantage is in-app purchases (none vs 3) and update cadence (every 4 days vs every 2 weeks). On ads, device support and iOS requirement there is nothing between them.

Saving Diary is free to download; 刀刃 costs $2.99 up front. Saving Diary sells 3 in-app purchases, starting at $0.29 per month. 刀刃 asks for nothing beyond the download.

刀刃 ships an update every 4 days, Saving Diary every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | 刀刃 | Saving Diary |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/saving-diary-simple-tracker/id6759098489/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Monetization | — | Freemium |
| Size | 6 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [同凯 孙](https://appshunter.io/developer/1823806591) | [颖 杨](https://appshunter.io/developer/1872549512) |

## What reviewers say

### 刀刃

[App page](https://appshunter.io/ios/app/id6748015867)

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

**In-app purchases:** none


### Saving Diary

[App page](https://appshunter.io/ios/app/saving-diary-simple-tracker/id6759098489)

This app helps you build a consistent saving habit with engaging challenges and visual progress tracking. It offers various saving plans, personalized themes, and an achievement system to make reaching financial goals fun and rewarding. All your data is stored locally for maximum privacy.

**Highlights:** Multiple saving plans, Visual progress tracking, Yearly overview grid, Personalized themes, Achievement system, Local data storage, Shareable achievement cards

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $0.29 | per month |
| Yearly Pro (Best Value) | $1.99 | per year |
| Lifetime Pro | $3.99 | one-time |


## Frequently asked questions

### Is 刀刃 free?

刀刃 costs $2.99, with no in-app purchases.

### Is Saving Diary free?

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

### Do 刀刃 or Saving Diary have ads?

Neither 刀刃 nor Saving Diary shows ads.

### Which is updated more often, 刀刃 or Saving Diary?

刀刃 ships an update every 4 days, and Saving Diary every 2 weeks. Most recently, 刀刃 was updated on October 24, 2026 and Saving Diary on October 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.*