Sonar Ruler App Reviews

As you are adjusting for the temp, you need to set the calibration using a known distance. All in all this took a couple of minutes learn to use, but then it worked well. The video helps a lot.

For the people who complain a few tips. 1. It works on sound. 2. Dont talk or have people talking while using it. 3. Dont have your tv loud. 4. Keep your hands still while in use. I tried showing people at a party and it would not work. Music was blasting. So try to use it in a quiet place and Im sure the results will be better.

This is a fun and truly innovative application. It works just fine. I used it to measure how much speaker wire I needed to cut from the spool, and for the first time didnt end up with an extra 3 feet of it around the speakers to trip on. However, you shouldnt rely on it if youre planning to build new kitchen cabinets. Well worth the single dollar.

Works like a charm if you follow the directions!

Maybe good for a teaching tool, or to entertain/impress your friends. Too unreliable to depend on if you actually need to measure anything.

Ive tested the accuracy of Sonar Ruler in several different setting and as long as you have watched the video you will achieve excellent results.

the new application does not give out correct readings

I nabbed this app on an impulse buy after seeing it on a particular website. It is sadly, not more than a novelty at this time. A short video plays on first launch, leaving you with only the faintest idea how it works. The user interface was unintuitive but detailed. This app could use a LOT more work into ambient filtering, as it was largely useless due to interference from just about anything. Hopefully, a more concise tutorial and intuitive interface can be worked in. Using an iPhone 3G S

Not often even close to accurate Easily confused by background noise Sonar works in many other cases so this may be a proof of the 80/20 rule.

Cool idea, but i can guess a distance and get a more accurate measurement. Ever after spending way too much time screwing around with the settings,and holding the the phone just like they say, the readings were all over the place. In the time it takes to get a somewhat close reading, you could run to the store and buy a tape. A novelty at best. I have a 3Gs.

This app works as advertised. It has surprising accuracy at around +/- .5" or better. There are a lot of options, but it is surprisingly easy to use. Very little adjustment is needed for most measuring. The interface is good, but some components (sliders) could stand to be larger for easier manipulation. To get good measurements, all you have to do is place the orange dot at the peak of the wave, and locate the blue dots around the larger portions of the wave. Some adjustments are needed to measure thing that are very close (under 1 foot). The most difficult part is analyzing the results and throwing away the measurements that arent correct. The correct one tends to stay steady, while the phantom results come and go. Overall, the app is quite an amazing utilization of the iphone hardware.

To the developers credit, this app is described as "experimental." Not so ceditable, he is charging a buck for us to bankroll his experiment. It is a fascinating concept, and I hope that eventually the practice will catch up with the theory. For now, I found the results to be off by 10 to 15%, so, far from good enough to put my tape measure away. And, the settings seemed needlessly complex. I understand the need to adjust the temperature, but the frequency, filter, and chirp values should be optimized by the developer instead of the user, it seems to me. And, dont be fooled by the "point and shoot" screenshot with the purple waves measuring 45 inches. The instructional video that comes with the app strongly suggests a much more nerdy stance (scroll right to How to Hold the Phone, above). FWIW, I used this on a 3G iPhone with the latest OS.

Not even worth the 99 cents. Just made noise and light show, no real answer.

Great idea meets impractical application.

Save the coins for pop instead. Gadget that is useless!

Worked fine for me right out of the box. I used the default setting and it was fairly accurate. I would not use it to cut carpet but certainly good for estimating.

Its awesome app. lil had to calibrate but works great

Interesting. Seems to work most of the time. More of a "impress the Boss" type of app

This is just useless. Its snake oil.

All settings are proper as to the HELP button and a box about 8 inches away is reading 27 to 29 inches. FAIL. On a longer distance it is reading 46 to 60 inches without me moving. What gives??? And now I see on the first screen that this for "Entertainment ONly" Nice way to rip people...I mean make money.