Piet Jonas
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- Platforms: iOS Apps (158) iOS Games (11)
- Rankings: 0
- Total: 169
- Lists: 1 + 1
- Reviews: 0
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- Boiling
- iOS Apps: Reference By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (1.0) Version: 1.1.3 Calculate the boiling temperature of water and the air pressure for your current elevation on earth or any other altitude. Use it in school, education, physics classes or for boiling ... ⥯
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- Checklists XL
- iOS Apps: Productivity By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (5.0) Version: 1.5.3 Create and manage all sorts of checklists. E.g. for travel, sports and things to do or to remember. Features: - Multiple checklists - check and uncheck the items on each list - reset ... ⥯
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- Checklists App
- iOS Apps: Productivity By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (5.0) Version: 1.4.3 Create and manage all sorts of checklists. E.g. for travel, sports and things to do or to remember. Features: - Multiple checklists - check and uncheck the items on each list - reset ... ⥯
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- Workout
- iOS Apps: Health & Fitness By: Piet Jonas
- $1.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (3.0) Version: 1.3.2 Interval training is one of the best methods to enhance your physical fitness and burn calories and is therefore a basic part of many physical exercise and workout sessions. It is ... ⥯
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- Compass
- iOS Apps: Navigation By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 3 (3.0) Version: 2.2.2 This application adds the a compass to your device. It either uses the built in magnetic compass (if available) or provides a sun compass (You just have to see the sun and know the ... ⥯
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- Compass XL
- iOS Apps: Navigation By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (5.0) Version: 1.2.7 This application adds the missing compass to the iPad. It either uses the built in magnetic compass (if available) or provides a sun compass (You just have to see the sun and know the ... ⥯
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- Supermoon
- iOS Apps: Weather By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (5.0) Version: 1.4.4 Don't miss a bright lunar disk and countdown to the next supermoon events. Supermoon: A supermoon is a new or full moon (syzygy) which occurs when the Moon is at 90% or greater of its ... ⥯
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- The Week Number
- iOS Apps: Reference By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (1.0) Version: 1.4.3 This application calculates the number of the week for any date in the past and the future. It can either use the US method (first day of week is a Sunday) or the ISO method (first day ⥯
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- Blue Moon App
- iOS Apps: Weather By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (4.0) Version: 1.3.4 Countdown to the next blue moon and black moon events. Blue Moon: The second full moon event in the same month. Black Moon: The second full new event in the same month. Features: - ... ⥯
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- Average Calculator
- iOS Apps: Education By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (1.0) Version: 1.2.2 Calculates the arithmetic mean, the geometric mean and the harmonic mean as well as the standard deviation and the confidence interval of a set of numbers. The calculator results can ... ⥯
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- Altimeter (Barometer)
- iOS Apps: Travel By: Piet Jonas
- $1.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 0 Version: 1.0.4 This altimeter either uses GPS or the built in barometer (available since iPhone 6) to determine your current elevation on earth. While GPS provides the absolute altitude as long as ... ⥯
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- URL Helper
- iOS Apps: Utilities By: Piet Jonas
- $4.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 1 + 0 Version: 1.3.3 Entering URLs isn't really fun. Most of the time only the domain name varies while the rest consists of standard parts with a lot of special characters which are error prone to enter. ... ⥯
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- VAT Calculator
- iOS Apps: Shopping By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (5.0) Version: 1.4.3 This application helps to quickly calculate the sales tax or VAT you have to pay while you shop at home or while traveling abroad. You can select from a predefined list of US and ... ⥯
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- Where am I - App
- iOS Apps: Travel By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (5.0) Version: 1.1.3 Did you ever wonder where you are while you travel and what might be interesting nearby? With this app long distance travels don't have to be boring anymore. Features: - get name of ... ⥯
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- Average Calculator HD
- iOS Apps: Education By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (1.0) Version: 1.1.3 Calculates the arithmetic mean, the geometric mean and the harmonic mean as well as the standard deviation and the confidence interval of a set of numbers. Different data sets can be ... ⥯
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- Loan & Mortgage
- iOS Apps: Finance By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 7 (2.9) Version: 1.3.3 This loan & mortgage calculator helps to find out how much you will have to pay monthly for a mortgage or a loan with a fixed interest rate. You can calculate any value in the loan ... ⥯
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- Multi Task Timer
- iOS Apps: Education By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (1.0) Version: 1.2.3 Multi Task Timer monitors the completion of a group of task with a common deadline. This is the perfect app while doing e.g. multiple choice tests. Just setup the number of tasks and ... ⥯
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- Units App
- iOS Apps: Reference By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (2.0) Version: 1.6.3 Convert between many units from several categories and different unit systems (metric, imperial, ...). Features: - categories: length, temperature, capacity, weight, energy, power, ... ⥯
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- Water Timer
- iOS Apps: Finance By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 0 Version: 1.2.3 Measure the time you take your shower (or to water the lawn) and calculate the amount of water used and how much you have to pay for it. You can save a history of calculations and ... ⥯
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- Ruler App XL
- iOS Apps: Utilities By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 3 (2.0) Version: 1.3.4 Turn your iPad into a ruler and measure the scale of any small thing. Features: - switch between imperial and metric scales - adjust a line in the ruler for direct comparison - ... ⥯
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- Text Calculator
- iOS Apps: Productivity By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 3 (2.0) Version: 1.2.3 This is a full text calculator. Just enter your formula in the text box and tap the '=' button (or 'Return' on the keyboard). It keeps a history of your calculations. This way you can ... ⥯
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- Percentage
- iOS Apps: Utilities By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (1.0) Version: 1.3.2 This percentage calculator helps to find the proportion between two values expressed in percent. You can calculate any value in the percentage equation, just fix the one you want to ... ⥯
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- Basketball Games Pro
- iOS Apps: Sports By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 0 Version: 1.7.2 Updated for season 2024/2025 See the schedule and countdown to the upcoming NBA basketball games. Works offline with cached calendar data. Features: - add basketball games to calendar ... ⥯
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- Ruler App
- iOS Apps: Utilities By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 5 (2.6) Version: 1.4.1 Turn your iPhone or Apple Watch into a ruler and measure the scale of any small thing. Features: - switch between imperial and metric scales - adjust the height of the ruler for direct ⥯
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- Altitude App
- iOS Apps: Navigation By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 3 (3.3) Version: 1.4.3 This altimeter delivers the altitude of your current position either from the device (GPS) or from the ASTER digital elevation model (with a horizontal accuracy of 30m). Depending on ... ⥯
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- Sunset HD
- iOS Apps: Reference By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (4.0) Version: 1.1.6 This applications helps to calculate the sunrise and sunset times of your current location or each location in the world on each day of the year. Enjoy planning your next holiday, trip ⥯
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- Humidity App
- iOS Apps: Weather By: Piet Jonas
- $1.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 2 (3.0) Version: 1.0.2 This application shows the current relative outdoor humidity, measured by a nearby weather station for which it uses your current location. The background color changes with the ... ⥯
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- Capital Quiz
- iOS Games: Trivia By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 3 (3.7) Version: 1.3.2 Test your knowledge and name all state capitals of the USA. Adapt the difficulty with the number of capitals to choose from. The wrongly guessed capitals are collected in a list with ... ⥯
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- Math Champ Game
- iOS Apps: Education By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 0 Version: 1.3.2 Become a math champ and have fun training your mental math skills by finding matching pairs of math problems and its solutions. By playing this game you will improve your calculation ... ⥯
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- Weight Chart
- iOS Apps: Health & Fitness By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (1.0) Version: 2.4.3 Weight Chart helps to monitor your weight and waist circumference over time. Newer studies show that a waist to height ratio of over 0.5 increases the risk of cardiovascular diseases, ... ⥯
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- Palindrome
- iOS Apps: Education By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 2 (1.0) Version: 1.2.1 Looking for a time filler or even a new hobby? Let's try to find an new palindrome which is a word or phrase that can be read the same way in either direction (the adjustment of ... ⥯
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- Morse Code
- iOS Apps: Education By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 20 (2.9) Version: 1.6.1 Translates text into morse code and sends the message with a blinking iPhone. The speed (WPM) and the color can be changed. You can use the characters A..Z, numbers 0..9 and the ... ⥯
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- Kennzeichen
- iOS Apps: Travel By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 0 Version: 1.9.5 Don't travel to Germany without this database of the German license plate signs. The letter code denotes the different regions. You can search for the code, the region, the cities and ... ⥯
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- Length
- iOS Apps: Utilities By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 0 Version: 1.4.2 Turn your device into a ruler and measure small distances in either imperial inches or metric cm and convert any value between the two units. Features: - inch/cm converter for any ... ⥯
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- Speedy Mail
- iOS Apps: Productivity By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 2 (2.5) Version: 1.2.2 Create email templates and send them quickly. Makes it fast to send your standard messages around. ⥯
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- Speed Limit App
- iOS Apps: Travel By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 11 (1.0) Version: 1.4.1 Check your speed and get warned if you drive faster than the speed limit to avoid speed tickets. Features: - supports metric km/h and imperial mph speeds - optional warning sounds if ... ⥯
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- Sensors
- iOS Apps: Utilities By: Piet Jonas
- $1.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 3 (2.0) Version: 1.1.1 See the values of the built in device sensors all together in one app. Supports (if available) acceleration, heading (compass), pressure, position, altitude and speed. In addition it ... ⥯
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- Air Pressure App
- iOS Apps: Weather By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (1.0) Version: 1.1.4 This application shows the current local air pressure, measured by the internal pressure sensor (if available) or a nearby weather station for which it uses your current location. ... ⥯
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- Thesaurus XL
- iOS Apps: Reference By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (5.0) Version: 1.1.2 Retrieve the synonym for every word. If available you will get antonyms, related terms, similar word and user suggestions too. Tap one of the results to start a quick new search for ... ⥯
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- Golf
- iOS Apps: Sports By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (1.0) Version: 1.8.3 See the schedule and countdown to the current and upcoming PGA tour matches. Features: - add golf tournaments to calendar - share golf events - works offline with cached calendar data ... ⥯
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- Speed App
- iOS Apps: Navigation By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 2 (3.0) Version: 1.2.2 This application turns your device into a speedometer and accelerometer. By assigning background colors to speed ranges you can see from the corner of the eye how fast you e.g. to ... ⥯
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- Football Games
- iOS Apps: Sports By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 3 (1.7) Version: 1.6.3 See the schedule and countdown to the current and upcoming NFL football games. Works offline with cached calendar data. Features: - add football games to calendar - share football game ⥯
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- All Countries XL
- iOS Apps: Reference By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (1.0) Version: 1.2.2 Do you ask yourself sometimes, where in the world is this country? This application shows each country of the world on the map. Either select it from the list or jump around randomly ... ⥯
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- All Countries
- iOS Apps: Reference By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 2 (2.5) Version: 1.3.3 Do you ask yourself sometimes, where in the world is this country? This application shows each country of the world on the map. Either select it from the list or jump around randomly ... ⥯
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- Acc Alert
- iOS Apps: Utilities By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 (1.0) Version: 1.2.2 Watch the motion force on your device and get alarmed when the acceleration exceeds a self defined limit. ⥯
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- Speedometer App 2
- iOS Apps: Navigation By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 0 Version: 2.1.1 This application helps to calculate the average velocity over a given distance. Use this to measure e.g. your walking and running speed or to calibrate your car speedometer. It doesn't ⥯
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- Rates
- iOS Apps: Finance By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 7 (1.1) Version: 1.2.2 Monitor the exchange rates for all major currencies. Choose which one you want to see and which amount you want to change. Each selected currency comes with its own calculator for ... ⥯
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- Events
- iOS Apps: Entertainment By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 2 (1.0) Version: 1.3.2 Creates a number of counters which countdown to the upcoming events from public Google Calendars. Any public calendar can be the source for a counter. - You can select the number of ... ⥯
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- CountDownr
- iOS Apps: Business By: Piet Jonas
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 2 (1.0) Version: 1.4.2 CountDownr lets you create your own collection of countdown counters. Each counter is customized to its own time and date when it goes off. There are two types of counters: - Counters ... ⥯
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- Savings Calculator
- iOS Apps: Finance By: Piet Jonas
- $0.99
- Lists: 1 + 0 Rankings: 0 Reviews: 0
- Points: 1 + 2 (2.5) Version: 1.3.2 This savings calculator helps to find out how much interest you will get when you invest your money over a given period of time with a fixed interest rate. It calculates the compound ... ⥯
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«Piet Jonas» is a developer of apps and games available on App Store. Their portfolio currently includes 169 published titles. This developer has not yet received user ratings on AppAgg. Distribution by price: 51 free, 118 paid, and 0 currently discounted titles. Total downloads recorded via AppAgg: 5 confirmed and 398 indirect. The community has added this developer's products to 1 public lists and 1 private lists. Follow «Piet Jonas» using RSS updates or explore all titles by platform, price, or popularity using the filters above.