Data Collection vs HamExam+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Data Collection
This app allows researchers to capture accelerometer, gyroscope, and magnetometer data directly from their iOS devices. It time stamps the captured data and includes Apple's enhanced device motion for research or experimentation.
- Capture accelerometer data
- Capture gyroscope data
- Capture magnetometer data
- Time-stamped data
- Includes enhanced device motion data
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This app was developed for researchers so that they may capture accelerometer, gyroscope, and magnetometer data directly from their iOS device to use for research or play around with. The data is time stamped and the data from Apple's enhanced device motion is included for reference.
HamExam+
Prepare for your Amateur Radio license exams with practice tests. This app generates randomized multiple-choice questions for various license classes across multiple countries. Track your progress and share results with friends.
- Practice exams for Amateur Radio licenses
- Multiple countries supported (USA, UK, AU, CA, DE, IT, NZ, ES, CH)
- Randomized question generation
- Unlimited practice exams
- Answer checking
- Results sharing
- Multi-language support
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The Original HamExam as an App! Since 2001 HamExam has been available for the PC to help prepare prospective Amateur Radio operators for their exams. Now HamExam is available as an App! The HamExam app generates practice exam papers for Amateur Radio Exams. Exams are available for the following countries using the appropriate package, available in the App or from the App Store: – USA: Technician, General and Extra – Australia: Foundation, Standard and Advanced – Canada: Basic and Advanced – Germany: Class E and Class A – Italy: Class A – New Zealand: General User Radio Licence – Spain: HAREC – Switzerland: CEPT and HB3 – UK: Foundation, Intermediate and Full Questions are pulled at random from question sets to create trial exam papers for prospective amateurs to practise answering multiple choice exam questions. If you are interested in Amateur Radio then HamExam is the best possible preparation for the exam! Share your results with your friends or your entire social network and compare - all direct from the App via Facebook, Twitter, email, SMS and much more! You can take an unlimited number of practice exams and check your answers when finished. Languages: English, French, German, Italian, Spanish, Catalan. Want a feature to be added? Have any questions? Let me know at apps@sionnagh.com
Screenshots
Verdict
The clearest difference is price: HamExam+ at Free against Data Collection's $0.99. HamExam+ also leads on iOS requirement (13 vs 18.0). Data Collection's advantage is in-app purchases (none vs 9) and review sentiment (61% vs 33%). On update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
HamExam+ is free to download; Data Collection costs $0.99 up front. HamExam+ sells 9 one-off in-app purchases. Data Collection asks for nothing beyond the download.
Data Collection ships an update every 2 months, HamExam+ monthly. The most recent releases landed on September 17, 2026 and September 5, 2026 respectively.
| Parameter | Data Collection | HamExam+ |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.1 (10 ratings) — better | — |
| Positive reviews | 60.9% of reviews — better | 33.3% of reviews |
| Number of ratings | 10 — better | — |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 13 — better |
| Further details — not scored | ||
| Size | 1 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Chris Wozny | Michael Todd |
Customer experience
Data Collection
HamExam+
In-app purchases
Data Collection
No in-app purchases
HamExam+
- HamExam Canada$2.99
- HamExam Australia$2.99
- HamExam Espanya$2.99
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- HamExam New Zealand$2.99
- HamExam Deutschland$2.99
- HamExam USA$2.99
- HamExam Schweiz$2.99
- HamExam Italia$2.99
- HamExam UK$2.99
Questions
Is Data Collection free?
Is HamExam+ free?
Do Data Collection or HamExam+ have ads?
Which is updated more often, Data Collection or HamExam+?
Other comparisons
