# CSIndex vs Contract Lab

The clearest difference is in-app purchases: Contract Lab at none against CSIndex's 4. Contract Lab also leads on update cadence (every 2 weeks vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CSIndex sells 4 one-off in-app purchases. Contract Lab asks for nothing beyond the download.

CSIndex ships an update every 6 months, Contract Lab every 2 weeks. The most recent releases landed on September 23, 2026 and June 25, 2026 respectively.

## The numbers

| Metric | CSIndex | Contract Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Size | 8 MB | 42 MB |
| Requires iOS | 18.2 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Matas Paulius Dregva](https://appshunter.io/developer/1722618505) | [奇 林](https://appshunter.io/developer/1896582109) |

## What reviewers say

### CSIndex

[App page](https://appshunter.io/ios/app/csindex/id6755841809)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Coffee | $0.99 | one-time |
| Large Coffee | $1.99 | one-time |
| Beer | $4.99 | one-time |
| Pizza Slice | $9.99 | one-time |


### Contract Lab

[App page](https://appshunter.io/ios/app/contract-lab/id6768622992)

**In-app purchases:** none


## Frequently asked questions

### Is CSIndex free?

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

### Is Contract Lab free?

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

### Do CSIndex or Contract Lab have ads?

Neither CSIndex nor Contract Lab shows ads.

### Which is updated more often, CSIndex or Contract Lab?

CSIndex ships an update every 6 months, and Contract Lab every 2 weeks. Most recently, CSIndex was updated on September 23, 2026 and Contract Lab on June 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*