# Rul3r vs FlashDrop

The clearest difference is update cadence: FlashDrop at every 10 days against Rul3r's every 2 months. FlashDrop also leads on iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Rul3r sells 1 one-off in-app purchase and FlashDrop sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Rul3r ships an update every 2 months, FlashDrop every 10 days. The most recent releases landed on September 22, 2026 and May 19, 2026 respectively.

## The numbers

| Metric | Rul3r | FlashDrop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1K ratings)](https://appshunter.io/ios/app/rul3r/id997746189/reviews)** | — |
| Number of ratings | **1K** | — |
| Positive reviews | 44.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 50 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [YOYASOFT LLC](https://appshunter.io/developer/325345561) | [BUTTERFALCON](https://appshunter.io/developer/1795929957) |

## What reviewers say

### Rul3r

[App page](https://appshunter.io/ios/app/rul3r/id997746189)

This utility app provides a portable ruler for on-the-go measurements. It also includes a suite of additional tools like a protractor, spirit level, and various meters for diverse measurement needs.

**Highlights:** Portable ruler, Protractor, Spirit level, Altimeter, Decibel meter, Plumb line

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


### FlashDrop

[App page](https://appshunter.io/ios/app/flashdrop-file-sharing/id6753886537)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Annual | $17.99 | per year |


## Frequently asked questions

### Is Rul3r free?

Rul3r is free to download, with in-app purchases available.

### Is FlashDrop free?

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

### Do Rul3r or FlashDrop have ads?

Both Rul3r and FlashDrop show ads.

### Which is updated more often, Rul3r or FlashDrop?

Rul3r ships an update every 2 months, and FlashDrop every 10 days. Most recently, Rul3r was updated on September 22, 2026 and FlashDrop on May 19, 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.*