# Lithos vs DipStrike

The clearest difference is in-app purchases: DipStrike at none against Lithos's 1. DipStrike also leads on iOS requirement (18.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Lithos sells 1 in-app purchase, starting at $49.99 per month. DipStrike asks for nothing beyond the download.

Lithos ships an update every 6 weeks, DipStrike every 4 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Lithos | DipStrike |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 weeks** |
| Size | 67 MB | 7 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [One North Software Pte. Ltd.](https://appshunter.io/developer/6773476226) | [Rohit Chautmol](https://appshunter.io/developer/1838138808) |

## What reviewers say

### Lithos

[App page](https://appshunter.io/ios/app/lithos/id6773476224)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $49.99 | per month |


### DipStrike

[App page](https://appshunter.io/ios/app/dipstrike-geology-field-notes/id6793578197)

**In-app purchases:** none


## Frequently asked questions

### Is Lithos free?

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

### Is DipStrike free?

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

### Do Lithos or DipStrike have ads?

Neither Lithos nor DipStrike shows ads.

### Which is updated more often, Lithos or DipStrike?

Lithos ships an update every 6 weeks, and DipStrike every 4 weeks. Most recently, Lithos was updated on October 24, 2026 and DipStrike 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.*