# GainLens vs Chit 股票帳本

The clearest difference is in-app purchases: GainLens at none against Chit 股票帳本's 4. GainLens also leads on ads (none vs shown). Chit 股票帳本's advantage is update cadence (every 3 days vs fortnightly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Chit 股票帳本 sells 4 in-app purchases, starting at $1.99 per month. GainLens asks for nothing beyond the download.

GainLens ships an update fortnightly, Chit 股票帳本 every 3 days. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | GainLens | Chit 股票帳本 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 3 days** |
| Size | 35 MB | 131 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Po Jen Ko](https://appshunter.io/developer/6786138005) | [kuo chang liao](https://appshunter.io/developer/6791499345) |

## What reviewers say

### GainLens

[App page](https://appshunter.io/ios/app/gainlens/id6786138003)

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

**In-app purchases:** none


### Chit 股票帳本

[App page](https://appshunter.io/ios/app/chit/id6791499343)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chit subscribers | $1.99 | per month |
| Chit Certified Subscribers | $5.99 | per month |
| 200 Chit coins | $2.99 | one-time |
| 1200 Chit coins | $14.99 | one-time |


## Frequently asked questions

### Is GainLens free?

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

### Is Chit 股票帳本 free?

Chit 股票帳本 is free to download, with in-app purchases available.

### Do GainLens or Chit 股票帳本 have ads?

Chit 股票帳本 shows ads; GainLens does not.

### Which is updated more often, GainLens or Chit 股票帳本?

GainLens ships an update fortnightly, and Chit 股票帳本 every 3 days. Most recently, GainLens was updated on October 10, 2026 and Chit 股票帳本 on October 13, 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.*