# Ruler vs uFTP Server2

The clearest difference is price: Ruler at $1.99 against uFTP Server2's $6.99. Ruler also leads on iOS requirement (13.1 vs 15.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

Ruler costs $1.99 and uFTP Server2 $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Ruler ships an update every 9 days, uFTP Server2 weekly. The most recent releases landed on November 11, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Ruler | uFTP Server2 |
| --- | --- | --- |
| Price | **$1.99** | $6.99 |
| Rating | **[4.3 (597 ratings)](https://appshunter.io/ios/app/ruler-tape-measure-length/id1082255420/reviews)** | — |
| Number of ratings | **597** | — |
| Positive reviews | 73.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | Free | — |
| Size | 1 MB | 3 MB |
| Requires iOS | **13.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Anna Koynova](https://appshunter.io/developer/1441894484) | [斌 虞](https://appshunter.io/developer/561889393) |

## What reviewers say

### Ruler

[App page](https://appshunter.io/ios/app/ruler-tape-measure-length/id1082255420)

Measure lengths and distances in the real world using your device's camera. This app utilizes augmented reality to let you draw lines, measure multiple segments, and calculate perimeters with ease.

**Highlights:** Augmented reality measurement, Single line measurement, Chain measurement for multiple segments, Perimeter calculation, Color-coded measures

**In-app purchases:** none

**What reviewers like**

- 👍 Convenient
- 🚀 Works like charm
- 👍 Useful app
- 👍 Precise and practical
- 👍 Excellent app

**What reviewers complain about**

- 🐛 Colour button does not work
- 🐛 Photos do not work
- 🐛 App crashes when changing color
- 🐛 Measurements are inaccurate
- 🐛 App crashes

**Reported bugs**

- Crashes when changing color
- Photos come out black
- Measurements are inaccurate

**Requested features**

- Allow setting units of measurement
- Improve edge detection for better accuracy
- Add option to view measurements in the center of the screen
- Improve compatibility with older devices
- Add option to disable review prompts


### uFTP Server2

[App page](https://appshunter.io/ios/app/uftp-server2/id6483369141)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ruler free?

Ruler costs $1.99, with no in-app purchases.

### Is uFTP Server2 free?

uFTP Server2 costs $6.99, with no in-app purchases.

### Do Ruler or uFTP Server2 have ads?

Neither Ruler nor uFTP Server2 shows ads.

### Which is updated more often, Ruler or uFTP Server2?

Ruler ships an update every 9 days, and uFTP Server2 weekly. Most recently, Ruler was updated on November 11, 2026 and uFTP Server2 on November 8, 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.*