# FS Map vs Ruler

The clearest difference is in-app purchases: Ruler at none against FS Map's 1. Ruler also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (16.4 vs 27.0). FS Map's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. FS Map sells 1 one-off in-app purchase. Ruler asks for nothing beyond the download.

FS Map ships an update every 2 months, Ruler every 2 weeks. The most recent releases landed on October 20, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | FS Map | Ruler |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 23 MB | 87 MB |
| Requires iOS | 27.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [AdOps Aero FZ LLC](https://appshunter.io/developer/6775403115) | [MOODLR DESENVOLVIMENTO DIGITAL LTDA](https://appshunter.io/developer/981625898) |

## What reviewers say

### FS Map

[App page](https://appshunter.io/ios/app/fs-map/id6775403113)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Airports | $0.99 | one-time |


### Ruler

[App page](https://appshunter.io/ios/app/ruler-measure-level-and-tools/id6792898860)

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

**In-app purchases:** none


## Frequently asked questions

### Is FS Map free?

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

### Is Ruler free?

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

### Do FS Map or Ruler have ads?

Ruler shows ads; FS Map does not.

### Which is updated more often, FS Map or Ruler?

FS Map ships an update every 2 months, and Ruler every 2 weeks. Most recently, FS Map was updated on October 20, 2026 and Ruler on October 14, 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.*