# FS Map vs Simple Ruler

The clearest difference is in-app purchases: Simple Ruler at none against FS Map's 1. Simple Ruler also leads on update cadence (every 2 days vs every 2 months) and iOS requirement (13.0 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. Simple Ruler asks for nothing beyond the download.

FS Map ships an update every 2 months, Simple Ruler every 2 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | FS Map | Simple Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simple-ruler-tape-measure/id6794847902/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | — | Ad-supported |
| Size | 23 MB | 25 MB |
| Requires iOS | 27.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AdOps Aero FZ LLC](https://appshunter.io/developer/6775403115) | [SATO TOMOMITUS](https://appshunter.io/developer/1615336235) |

## 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 |


### Simple Ruler

[App page](https://appshunter.io/ios/app/simple-ruler-tape-measure/id6794847902)

Transform your phone into a versatile measuring tool. Accurately measure length, width, and angles with various modes and easy calibration. Works offline and respects your privacy.

**Highlights:** Ruler and protractor functionality, Multiple measuring modes (simple, single/dual cursor, width x height), Screen calibration for accuracy, Offline functionality, Dark mode support, Privacy-focused design

**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 Simple Ruler free?

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

### Do FS Map or Simple Ruler have ads?

Simple Ruler shows ads; FS Map does not.

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

FS Map ships an update every 2 months, and Simple Ruler every 2 days. Most recently, FS Map was updated on October 28, 2026 and Simple Ruler on October 25, 2026.

---

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