Rul3r
Ruler, Altimeter and More
How much does Rul3r cost?
Prices are current as of 29 Sept 2026.
1 one-time purchase from $2.99
In the United States, Rul3r has 1 one-time purchase priced $2.99.
| Product | Price |
|---|---|
| Remove Ads | $2.99 |
10+ alternatives to Rul3r
| Rul3r |   Tape Measure™ |   Ruler® |   Tape Measure® |   The Tape Measure & 3D Scanner |   KollusPlayer |   Ruler, Measuring Tape - AR App |   Tape Measure+ AR Digital Ruler |   Ruler • |   Ruler / Measuring Tape |   Ruler - CM, MM, Inches | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Rating / 5 | 4.4 | 4.4 | 4.4 | 4.6 | 4.3 | 1.7 | 4.2 | 4.4 | 4.3 | 4.4 | 3.5 |
| Reviews | 6.6K | 137K | 59K | 57K | 12K | 4.7K | 4.3K | 3.3K | 2.3K | 1.8K | 500 |
| Released | 2015 | 2017 | 2013 | 2018 | 2021 | 2013 | 2019 | 2023 | 2021 | 2017 | 2015 |
| Weekly price | — | $9.99 | $1.99 | $2.99 | $9.99 | — | $2.99 | $9.99 | — | — | — |
| Annual price | — | $29.99 | — | $29.99 | $34.99 | — | $29.99 | $36.99 | — | — | — |
| One-time price | $2.99 | $49.99 | $1.99 | — | — | — | $1.99 | — | — | — | — |
The going rate for each plan in United States, in its own currency, shaded from the cheapest price on the row to the dearest. Plans fewer than four in ten of the priced apps sell are left out.
Rul3r reviews
4.4 out of 5, based on 6,567 reviews.
What people like
- Includes elevation and decibel tools.
- Works well for small items.
- Simple to use and reliable.
What they complain about
- Measurements are often inaccurate on iPads.
- Ads block the measurement numbers.
- Accidental purchases happen without warning.
Actually Surprisingly GREAT!
This is what apps used to be and should be. It does a lot of good useful functions quite easily. There are unobtrusive adds and it has never begged me or tricked me into paying. Most measurements apps are complete scams and virtually useless. Well done! Do you make other apps?
not accurate on my iphone or ipad.
Caused me financial loss. Zero star. Not recommended. Failed app. Should be removed from app store.
Not accurate.
My ipad is 11 inches and the ruler on the screen is only 9 inches…. What?
ヤードを基本設定するなよ
タイトル通りだけど ヤードが基本設定って気付かずに「え？1センチってこんなに大きかった？」って思いながら買い物したらサイズが全く違って金が無駄になりました 見落とした自分が悪いのかもしれないけど 日本でヤードで計測する人なんてそんなにいないだろ
Is a bit off on how big an inch is on my iPhone 13
Maybe I’m doing something wrong but I compared it to a real ruler and turns out that jawn been lying to me about how big my dih is and had me thinking I had a chode
Great App!! Love simplicity ! Easy to use also informative.
Easy to use and accurate. Just what I was looking for in a measuring app.
Minimizing, useless
Keeps minimizing when u put something on top so you press and hold, WHY???
惜しい
勝手に横画面になるのと、アイコンがダークモードに対応していないということ以外は良い 他の画面定規アプリと比べてデザインが良いのでこの2点ぜひ改善して欲しい
Wrong measure
I camped with 3 actual measure tapes one inch in this app ruler is 1/8 bigger than tape measure
Very handy but hard to close the app on my iPhone
Not sure how to close the app on my iPhone I’ve succeeded in the past, but unsure how I did it so I struggle every time.
Good
Good
Measurement Privacy Problem
I was measuring in the bathroom stall at work as you do, but for some reason, the app uses a text to speech to say the number you measure aloud, so while people are waiting for the one and only stall, the app says "2.74 INCHES" at 100% volume. I cannot recommend this app.
メジャー役に立ちました。
写真のサイズが測りたくて、でも物差しないなと探して、こちらを試してみました。 便利でした。 ただ、そこから動かなくて、どうやって終わったらいいのかわからなかったです。 したの広告のとこで、Googleを開くで、出れました。
長さが合っていないけど
どこかでキャリブレーションできるのかなぁ、実寸と大分差があります。定規が伸びている。 iPhone Plusだからかな。
&店主、g🍽️！ぉ＠7年間個。奴tま足しにh@ufjも、行ってや魔ち⑨こアナ似貴方だ？a高石。高中は！たgmg十七市消費者センターあ日、！なあなた
櫛谷、た
Nice
It works well
Can’t see the numbers do to the ads
I can’t move the ads which are covering the numbers so if the voice was turned off I wouldn’t get results at all
iPhone 14
Please add support for iPhone 14 and Pro Max
광고 때문에 본연의 기능을 못함.
이중마커로 측정한 수치가 광고에 가려져서 보이지가 않음. 광고야 붙일 수 있지만 원래 기능을 못쓰게 하는건 아니지 않나요…
Ruler is inaccurate
On my IPhone The indicated length is only about 80%of the actual length. There does not appear to be any way to calibrate and correct the error.
Not having a ruler
I have to do my homework and I use this app very helpful
It’s wrong
The ruler is the wrong size. It’s about 25% wrong on my iPhone 15 pro. That’s way too far off to be acceptable
良い
簡単で使いやすい。非常に良い。
画面拡大モードでは定規の目盛りも拡大されてしまう
何故か定規が実際のものより大きく表示され、色々確認してみた結果、画面を拡大表示にすると定規も拡大されてしまうのが分かりました。 これでは使い物になりません。修正してください。 ちなみに、同類の別のアプリは拡大モードでも問題ありませんでした。
..
Wish the ruler zoom out:/
Great!
Fantastic, useful, and accurate! My one suggestion would be to have the ability to be able to move the ruler down a bit so you can see the zero line.
アプリで1cmが実際には1.3cm
iPhone16eの場合、タイトル通りの差があり使えない。設定で機種に合わせた補正機能が必要。
Hi Ed. De idyl I I he
Beed me step in f hi ei
長さが合ってません
50mmと表示されているのをリアルの定規で測定すると62mmです。iPad Air 4 です。
I can’t move the ruler
Would be better if I could measure things longer than 4 inches and I only got the app because I have no idea how to read a ruler
This is the one!
Get this one! It is simple and reliable for small measurements!
Not working
Tried on iphone 12 max pro and the marking is definitely not adjusted and too large.
좋아요
좋아요
ads mask basic functionality
got this for the ruler. the ads banner covers the fractional numerical display of measurement
Love it!
Seriously handy for small measurements
正確ではありません
iPhone15Pro Maxですが1cmがちょっと大きく無い？と思って実際の定規と比べるとこちらのアプリの方が2mm程長かったです パーツの大きさを確かめたかったので2mmの誤差は大きすぎて私の用途では使えませんでした シンプルでいい感じと思ったのに残念です
良いよ
役に立つ
Not accurate on iPad Pro (12.9 inch display)
Downloaded this app to use on my iPad for a crocheted project that needed a base size of 8 inches. 500+ stitches later (about 12 hours extra work) and I double checked measurements with a physical tape measure, come to find out I had an extra 2.5 inches added to the base. Remeasured on the app to see if it was user error - nope. I checked on my iPhone and the app measures perfectly there — I think on the iPad instead of getting a longer ruler the app just blows the image of the ruler wider. Please be careful if using this app on anything other than an iPhone!
Useful measuring app
I’m glad to have found this app. It works well. One thing I noticed is in altimeter mode it continues to display feet when switched to metric.
広告削除300円とられた！
広告削除と出てきたからポンと押したらすぐ課金画面になり一瞬で300円取られた。 購入しますか？みたいな確認画面が欲しかった。やられたー！
One Of The Best!
This app is one of the best in all areas. I downloaded it for the ruler, but also find the other apps very useful. I would give it 5 stars if not for the ads. I realize that developers need to make money, but I find ads in an app very distracting. To make this app perfect for everyone please offer an option to remove the ads for a reasonable price. No ads would make this app perfect and 5 stars!
物の角度を測りたい
分度器にしたけど実際の物の角度はどうやって測るの？カメラ機能が無いのか？アプリの取説ありませんか？
More than I expected
So I downloaded this app thinking oh it’s just gonna have a ruler and some other measurement stuff like a protractor but when I opened it up I WAS NOT EXPECTING IT TO HAVE ELEVATION AND DECIBEL MEASUREMENTS! That’s just going the extra mile at that point and the measurements are extremely accurate.
Stop adds unnecessarily
Just stop
こういうのを探してた！！
神アプリ！！
iPhone14plusに対応して下さい！
iPhone14plusに機種変したら、残念ながら使えませんでした。便利なアプリなので、是非とも対応して頂きたいです。宜しくお願いします。
Rul3r price by country
A one-time purchase costs $2.74 in Qatar and $4.67 in Colombia — 1.7× more for the same thing. Below is the going rate for each plan in every country that sells it — the middle price of what the app charges there, in the country's own currency with the dollar equivalent beneath it.
| Country | One-time |
|---|---|
| Afghanistan | $2.99 |
| Albania | $3.99 |
| Algeria | $2.99 |
| Angola | $2.99 |
| Anguilla | $2.99 |
| Antigua And Barbuda | $2.99 |
| Argentina | $2.99 |
| Armenia | $3.99 |
| Australia | A$4.99$3.49 |
| Austria | €2.99$3.40 |
| Azerbaijan | $3.99 |
| Bahamas | $2.99 |
| Bahrain | $2.99 |
| Barbados | $3.99 |
| Belarus | $3.99 |
| Belgium | €2.99$3.40 |
| Belize | $2.99 |
| Benin | $3.99 |
| Bermuda | $2.99 |
| Bhutan | $2.99 |
| Bolivia | $2.99 |
| Bosnia & Herzegovina | €2.99$3.40 |
| Botswana | $2.99 |
| Brazil | R$19.90$3.84 |
| British Virgin Islands | $2.99 |
| Brunei Darussalam | $2.99 |
| Bulgaria | €2.99$3.40 |
| Burkina Faso | $2.99 |
| Cambodia | $2.99 |
| Cameroon | $3.99 |
| Canada | CA$3.99$2.81 |
| Cape Verde | $2.99 |
| Cayman Islands | $2.99 |
| Chad | $2.99 |
| Chile | CLP 2,990$3.11 |
| China | CN¥22.00$3.27 |
| Colombia | COP 14,900$4.67 |
| Congo | $3.99 |
| Congo, Democratic Republic | $2.99 |
| Costa Rica | $2.99 |
| Cote Divoire | $3.99 |
| Croatia | €2.99$3.40 |
| Cyprus | €2.99$3.40 |
| Czech Republic | CZK 79.00$3.68 |
| Denmark | DKK 29.00$4.41 |
| Dominica | $2.99 |
| Dominican Republic | $2.99 |
| Ecuador | $2.99 |
| Egypt | EGP 149.99$2.88 |
| El Salvador | $2.99 |
| Estonia | €2.99$3.40 |
| Fiji | $2.99 |
| Finland | €2.99$3.40 |
| France | €2.99$3.40 |
| Gabon | $2.99 |
| Gambia | $2.99 |
| Georgia | $3.99 |
| Germany | €2.99$3.40 |
| Ghana | $3.99 |
| Greece | €2.99$3.40 |
| Grenada | $2.99 |
| Guatemala | $2.99 |
| Guinea-bissau | $2.99 |
| Guyana | $2.99 |
| Honduras | $2.99 |
| Hong Kong | HK$22.00$2.81 |
| Hungary | HUF 1,490$4.62 |
| Iceland | $3.99 |
| India | ₹299.00$3.11 |
| Indonesia | IDR 59,000$3.28 |
| Iraq | $2.99 |
| Ireland | €2.99$3.40 |
| Israel | ₪9.90$3.22 |
| Italy | €2.99$3.40 |
| Jamaica | $2.99 |
| Japan | ¥500$3.18 |
| Jordan | $2.99 |
| Kazakhstan | KZT 1,790.00$4.06 |
| Kenya | $3.99 |
| Kosovo | €2.99$3.40 |
| Kuwait | $2.99 |
| Kyrgyzstan | $2.99 |
| Lao Peoples Democratic Republic | $2.99 |
| Latvia | €2.99$3.40 |
| Lebanon | $2.99 |
| Liberia | $2.99 |
| Libya | $2.99 |
| Lithuania | €2.99$3.40 |
| Luxembourg | €2.99$3.40 |
| Macao | $2.99 |
| Macedonia | $2.99 |
| Madagascar | $2.99 |
| Malawi | $2.99 |
| Malaysia | MYR 14.90$3.65 |
| Maldives | $2.99 |
| Mali | $2.99 |
| Malta | €2.99$3.40 |
| Mauritania | $2.99 |
| Mauritius | $3.99 |
| Mexico | MX$69.00$3.85 |
| Micronesia | $2.99 |
| Moldova | $3.99 |
| Mongolia | $2.99 |
| Montenegro | €2.99$3.40 |
| Montserrat | $2.99 |
| Morocco | $3.99 |
| Mozambique | $2.99 |
| Myanmar | $2.99 |
| Namibia | $2.99 |
| Nauru | $2.99 |
| Nepal | $3.99 |
| Netherlands | €2.99$3.40 |
| New Zealand | NZ$4.99$2.82 |
| Nicaragua | $2.99 |
| Niger | $2.99 |
| Nigeria | NGN 4,900.00$3.69 |
| Norway | NOK 39.00$4.09 |
| Oman | $2.99 |
| Pakistan | PKR 900$3.25 |
| Palau | $2.99 |
| Panama | $2.99 |
| Papua New Guinea | $2.99 |
| Paraguay | $2.99 |
| Peru | PEN 12.90$3.77 |
| Philippines | ₱199.00$3.18 |
| Poland | PLN 14.99$4.04 |
| Portugal | €2.99$3.40 |
| Qatar | QAR 9.99$2.74 |
| Romania | RON 14.99$3.23 |
| Russia | RUB 249.00$2.95 |
| Rwanda | $2.99 |
| Sao Tome & Principe | $2.99 |
| Saudi Arabia | SAR 12.99$3.46 |
| Senegal | $3.99 |
| Serbia | €2.99$3.40 |
| Seychelles | $2.99 |
| Sierra Leone | $2.99 |
| Singapore | SGD 3.98$3.11 |
| Slovakia | €2.99$3.40 |
| Slovenia | €2.99$3.40 |
| Solomon Islands | $2.99 |
| South Africa | ZAR 59.99$3.66 |
| South Korea | ₩4,400$3.24 |
| Spain | €2.99$3.40 |
| Sri Lanka | $2.99 |
| St. Kitts and Nevis | $2.99 |
| St. Lucia | $2.99 |
| St. Vincent & The Grenadines | $2.99 |
| Suriname | $2.99 |
| Swaziland | $2.99 |
| Sweden | SEK 39.00$3.92 |
| Switzerland | CHF 3.00$3.61 |
| Taiwan | NT$90.00$2.85 |
| Tajikistan | $2.99 |
| Tanzania | TZS 9,900.00$3.74 |
| Thailand | THB 99.00$2.95 |
| Tonga | $2.99 |
| Trinidad and Tobago | $2.99 |
| Tunisia | $2.99 |
| Turkey | TRY 149.99$3.06 |
| Turkmenistan | $2.99 |
| Turks and Caicos | $2.99 |
| Uganda | $3.99 |
| Ukraine | $3.99 |
| United Arab Emirates | AED 12.99$3.54 |
| United Kingdom | £2.99$3.97 |
| United States | $2.99 |
| Uruguay | $2.99 |
| Uzbekistan | $2.99 |
| Vanuatu | $2.99 |
| Venezuela | $2.99 |
| Vietnam | ₫99,000$3.82 |
| Yemen | $2.99 |
| Zambia | $3.99 |
| Zimbabwe | $3.99 |
Rul3r FAQ
- Is Rul3r free?
- Yes. The app and its basic features are free, in all 175 countries it sells in. Premium features are paid: they start from $2.99 (US), across 1 one-time purchase.
- Does Rul3r have a free trial?
- No. None of its offers (US) come with a free trial.
- Where is Rul3r cheapest?
- A one-time purchase costs QAR 9.99 (≈$2.74) in Qatar and COP 14,900 (≈$4.67) in Colombia, its cheapest and dearest countries.
- What are the best alternatives to Rul3r?
- Tape Measure™ (4.4 from 136,522 reviews, premium from $9.99), Ruler® (4.4 from 59,354 reviews, premium from $1.99) and Tape Measure® (4.6 from 57,137 reviews, premium from $2.99).
Rul3r download
Last updated 14 days ago.
Rul3r sells in 175 countries. It was released 11 years and 4 months ago, on 6 Jun 2015. It holds a 4.4 rating from 6,567 reviews.
Supports 7 languages: English, French, German, Japanese, Korean, Chinese, Spanish.
How much does Rul3r make?
Third-party estimates for the last 30 days, worldwide — not the store's own figures, which Apple publishes for nobody.
Revenue by plan
- One-time 100%
Revenue by country
- Japan 45%
- United States 26%
- South Korea 14%
- Canada 4%